11. Springboot集成Zipkin分布式监控
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
#服务追踪
spring.zipkin.service.name=zipkin-test
spring.zipkin.base-url=http://127.0.0.1:9411/
spring.zipkin.discovery-client-enabled=true
spring.zipkin.sender.type=web
spring.sleuth.sampler.probability=1
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index1() throws Exception {
return "成功";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
12. Eclipse安装SpringBoot插件创建项目01. Springboot(2.0.2)中集成SpringBootAdmin和Eureka监控服务
注册中心可以是Eureka、Consul、Dubbo等
1.Eureka注册中心
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=eurekaServer
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
#展示全部细节信息
management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@EnableAutoConfiguration
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.SpringbootAdmin服务器端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-server</artifactId>
<version>2.0.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8311
spring.application.name=adminServer
eureka.client.registryFetchIntervalSeconds=5
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
eureka.client.healthcheck.enabled = true
eureka.instance.leaseRenewalIntervalInSeconds=10
eureka.instance.health-check-url-path=/actuator/health
#展示全部细节信息
management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*
#配置邮件提醒
spring.mail.host=smtp.163.com
#spring.mainl.port=465
spring.mail.protocol=smtps
spring.mail.username=Koaliai@163.com
spring.mail.password=JGRHETDUPHQALPHH
# to和from都要配置，否则发送邮件时会报错
spring.boot.admin.notify.mail.to=838032263@qq.com
spring.boot.admin.notify.mail.from=Koaliai@163.com
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import de.codecentric.boot.admin.server.config.EnableAdminServer;
@EnableAutoConfiguration
@EnableAdminServer
@EnableDiscoveryClient
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.SpringbootAdmin客户端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.application.name=adminClient
eureka.client.registryFetchIntervalSeconds=5
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
eureka.client.healthcheck.enabled = true
eureka.instance.leaseRenewalIntervalInSeconds=10
eureka.instance.health-check-url-path=/actuator/health
#展示全部细节信息
management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@EnableAutoConfiguration
@EnableDiscoveryClient
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
(1) 依次启动
Eureka注册中心、SpringbootAdmin服务器端、SpringbootAdmin客户端(2) 访问
SpringbootAdmin的Web管理页面http://localhost:8311
02. Springboot(2.4.1)中集成SpringBootAdmin监控服务
SpringbootAdmin是面向springboot的一款监控组件
1.服务器端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-dependencies</artifactId>
<version>2.3.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=adminServer
management.security.enabled=false
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import de.codecentric.boot.admin.server.config.EnableAdminServer;
@EnableAutoConfiguration
@EnableAdminServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
(4) 访问SpringbootAdmin的Web管理页面，并进行监控客户端运行状况
http://localhost:8310/
2.客户端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-dependencies</artifactId>
<version>2.3.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-client</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8311
spring.application.name=adminClient
#admin工程的url
spring.boot.admin.client.url=http://127.0.0.1:8310
#展示全部细节信息
management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*
#允许admin工程远程停止本应用
management.endpoint.shutdown.enabled=true
#admin工程的账号密码
spring.boot.admin.client.username=admin
spring.boot.admin.client.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@EnableAutoConfiguration
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
03. Springboot(2.0)中集成Zuul网关(Token验证)
1.Eureka注册中心
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8300
spring.application.name=eureka-server
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.Zuul路由生产者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8313
spring.application.name=five
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.client.healthcheck.enabled = true
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
@RequestMapping("/five")
public class controller {
@RequestMapping(value="/index",method = RequestMethod.GET)
public String Index() {
try {
return "支付成功";
}
catch(Exception e) {
return "支付失败";
}
}
@GetMapping("/hello/{name}")
public String ZuulTestFive(@PathVariable("name") String name) {
return "hello " + name + " this is ZuulTestFive";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.Zuul路由消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.application.name=startGateway
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
zuul.routes.three.path= /three/**
zuul.routes.three.service-id= three
zuul.routes.three.stripPrefix= false
zuul.routes.five.path= /five/**
zuul.routes.five.service-id= five
zuul.routes.five.stripPrefix= false
eureka.client.healthcheck.enabled = true
(3) 创建intector包，并创建MyFilter.java文件
MyFilter.java文件中内容：
import javax.servlet.http.HttpServletRequest;
import org.springframework.cloud.netflix.zuul.filters.support.FilterConstants;
import org.springframework.stereotype.Component;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
@Component
public class MyFilter extends ZuulFilter {
@Override
public String filterType() {
return FilterConstants.PRE_TYPE;
}
@Override
public int filterOrder() {
return 0;
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run(){
RequestContext ctx = RequestContext.getCurrentContext();
HttpServletRequest request = ctx.getRequest();
Object accessToken = request.getParameter("token");
if(accessToken == null) {
ctx.setSendZuulResponse(false);
ctx.setResponseStatusCode(401);
try {
ctx.getResponse().setHeader("Content-Type", "text/html;charset=UTF-8");
ctx.getResponse().getWriter().write("登录信息为空！");
}catch (Exception e){}
return null;
}
return null;
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@EnableZuulProxy
@ComponentScan("intector")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
**注：**依次启动
Eureka注册中心、Zuul路由生产者、Zuul路由消费者，然后访问地址验证地址：http://localhost:8312/five/index
04. Springboot(2.0)中集成Zuul网关限流(Redis存储)
1.Eureka注册中心
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8300
spring.application.name=eureka-server
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.Zuul路由生产者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8313
spring.application.name=five
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.client.healthcheck.enabled = true
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
@RequestMapping("/five")
public class controller {
@RequestMapping(value="/index",method = RequestMethod.GET)
public String Index() {
try {
return "支付成功";
}
catch(Exception e) {
return "支付失败";
}
}
@GetMapping("/hello/{name}")
public String ZuulTestFive(@PathVariable("name") String name) {
return "hello " + name + " this is ZuulTestFive";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.Zuul路由消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
<!--Zuul限流的相关依赖-->
<dependency>
<groupId>com.marcosbarbero.cloud</groupId>
<artifactId>spring-cloud-zuul-ratelimit</artifactId>
<version>1.3.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.application.name=startGateway
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
zuul.routes.three.path= /three/**
zuul.routes.three.service-id= three
zuul.routes.three.stripPrefix= false
zuul.routes.five.path= /five/**
zuul.routes.five.service-id= five
zuul.routes.five.stripPrefix= false
spring.redis.database=0
spring.redis.host=192.168.0.19
spring.redis.port=8302
#开启限流
zuul.ratelimit.enabled=true
#针对five路由限流
zuul.ratelimit.repository=redis
#60s内请求超过3次，服务端就抛出异常，60s后可以恢复正常请求
zuul.ratelimit.policies.five.limit=3
#限流类型
zuul.ratelimit.policies.five.type=url
zuul.ratelimit.policies.EURKA-CLIENT1.quota=50
zuul.ratelimit.policies.five.refresh-interval=60
#针对某个IP进行限流，不影响其他IP
zuul.ratelimit.policies.five.type=origin
eureka.client.healthcheck.enabled = true
#全局配置限流
#zuul.ratelimit.enabled=true
#zuul.ratelimit.default-policy.limit=3
#zuul.ratelimit.default-policy.refresh-interval=60
#zuul.ratelimit.default-policy.type=origin
(3) 创建intector包，并创建ExceptionHandler.java文件
ExceptionHandler.java文件中内容：
import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class ExceptionHandler implements ErrorController {
@Override
public String getErrorPath() {
return "error";
}
@RequestMapping(value="/error")
public String error(){
return "{\"result\":\"访问太多频繁，请稍后再访问！！！\"}";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@EnableZuulProxy
@ComponentScan("intector")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
**注：**依次启动
Eureka注册中心、Zuul路由生产者、Zuul路由消费者，然后访问地址验证地址：http://localhost:8312/five/index
05. Springboot(2.0)集成SpringGetWay(Token验证)
1.Eureka注册中心
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<!-- 这个依赖本来是可以不加的，但是配置没办法刷新，加上它可以手动刷新配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8300
spring.application.name=eurekaServer
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@EnableAutoConfiguration
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.GetWay路由消费者1
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=client-test
eureka.client.healthcheck.enabled = true
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.instance.instance-id=${spring.cloud.client.ip-address}:${server.port}
eureka.instance.prefer-ip-address=true
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@Value("${spring.cloud.client.ip-address}:${server.port}")
private String instance_id;
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return instance_id;
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.GetWay路由消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.74</version>
</dependency>
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>0.9.4.RELEASE</version>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.application.name=startGateway
eureka.client.healthcheck.enabled = true
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.instance.instance-id=gateway8312
eureka.instance.prefer-ip-address=true
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90
spring.cloud.gateway.discovery.locator.enabled=false
#开启小写验证，默认feign根据服务名查找都是用的全大写
spring.cloud.gateway.discovery.locator.lowerCaseServiceId=true
spring.cloud.gateway.routes[0].id=client-test
spring.cloud.gateway.routes[0].uri=lb://client-test
#spring.cloud.gateway.routes[0].predicates[0]=Path=/api/**
spring.cloud.gateway.routes[0].predicates[0]=Path=/**
spring.cloud.gateway.routes[0].filters[0]=StripPrefix=1
(3) 创建domain包，并创建ResultCode.java文件
ResultCode.java文件中内容：
import com.fasterxml.jackson.annotation.JsonFormat;
@JsonFormat(shape = JsonFormat.Shape.OBJECT)
public enum ResultCode {
/*
请求返回状态码和说明信息
*/
SUCCESS(200, "成功"),
BAD_REQUEST(400, "参数或者语法不对"),
UNAUTHORIZED(401, "认证失败"),
LOGIN_ERROR(401, "登陆失败，用户名或密码无效"),
FORBIDDEN(403, "禁止访问"),
NOT_FOUND(404, "请求的资源不存在"),
OPERATE_ERROR(405, "操作失败，请求操作的资源不存在"),
TIME_OUT(408, "请求超时"),
SERVER_ERROR(500, "服务器内部错误"),
;
private int code;
private String msg;
ResultCode(int code, String msg) {
this.code = code;
this.msg = msg;
}
public void setCode(int code) {
this.code = code;
}
public int getCode() {
return code;
}
public String getMsg() {
return msg;
}
}
(4) 在domain包中创建ResultJson.json文件
ResultJson.java文件中内容：
public class ResultJson {
private int code;
private String msg;
private Object data;
public static ResultJson Success() {
return Success("");
}
public static ResultJson Success(Object o) {
return new ResultJson(ResultCode.SUCCESS, o);
}
public static ResultJson Failure(ResultCode code) {
return Failure(code, "");
}
public static ResultJson Failure(ResultCode code, Object o) {
return new ResultJson(code, o);
}
public ResultJson (ResultCode resultCode) {
setResultCode(resultCode);
}
public ResultJson (ResultCode resultCode,Object data) {
setResultCode(resultCode);
this.data = data;
}
public void setResultCode(ResultCode resultCode) {
this.code = resultCode.getCode();
this.msg = resultCode.getMsg();
}
public void setCode(int code) {
this.code = code;
}
public int getCode() {
return code;
}
public void setMsg(String msg) {
this.msg = msg;
}
public String getMsg() {
return msg;
}
public void setData(Object data) {
this.data = data;
}
public Object getData() {
return data;
}
public ResultJson(int code, String msg, Object data) {
this.code = code;
this.msg = msg;
this.data = data;
}
@Override
public String toString() {
return "{" +
"\"code\":" + code +
", \"msg\":\"" + msg + '\"' +
", \"data\":\"" + data + '\"'+
'}';
}
}
(5) 创建Configure包，并创建AuthFilter.java文件
AuthFilter.java文件中内容：
import java.nio.charset.StandardCharsets;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import com.alibaba.fastjson.JSON;
import domain.*;
import reactor.core.publisher.Mono;
@Component
public class AuthFilter implements GlobalFilter{
@Override
public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
String token = exchange.getRequest().getHeaders().getFirst("token");
if ("token".equals(token)) {
return chain.filter(exchange);
}
ServerHttpResponse response = exchange.getResponse();
byte[] datas = JSON.toJSONString(ResultJson.Failure(ResultCode.UNAUTHORIZED)).getBytes(StandardCharsets.UTF_8);
DataBuffer buffer = response.bufferFactory().wrap(datas);
response.setStatusCode(HttpStatus.UNAUTHORIZED);
response.getHeaders().add("Content-Type", "application/json;charset=UTF-8");
return response.writeWith(Mono.just(buffer));
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
@EnableAutoConfiguration
@EnableEurekaClient
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
(1) 依次启动
Eureka注册中心、Getway路由生产者1、GetWay路由消费者(2) 启动完所有服务，测试
Web页面地址：http://localhost:8312/client-test/index
06. Springboot(2.0)集成SpringGetWay(限流)
1.Eureka注册中心
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<!-- 这个依赖本来是可以不加的，但是配置没办法刷新，加上它可以手动刷新配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8300
spring.application.name=eurekaServer
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@EnableAutoConfiguration
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.GetWay路由消费者1
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=client-test
eureka.client.healthcheck.enabled = true
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.instance.instance-id=${spring.cloud.client.ip-address}:${server.port}
eureka.instance.prefer-ip-address=true
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@Value("${spring.cloud.client.ip-address}:${server.port}")
private String instance_id;
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return instance_id;
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.GetWay路由消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.74</version>
</dependency>
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>0.9.4.RELEASE</version>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.main.allow-bean-definition-overriding=true
spring.application.name=startGateway
eureka.client.healthcheck.enabled = true
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.instance.instance-id=gateway8312
eureka.instance.prefer-ip-address=true
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90
spring.redis.host=127.0.0.1
spring.redis.port=8002
spring.redis.database=0
spring.cloud.gateway.discovery.locator.enabled=false
#开启小写验证，默认feign根据服务名查找都是用的全大写
spring.cloud.gateway.discovery.locator.lowerCaseServiceId=true
spring.cloud.gateway.routes[0].id=client-test
spring.cloud.gateway.routes[0].uri=lb://client-test
#spring.cloud.gateway.routes[0].predicates[0]=Path=/api/**
spring.cloud.gateway.routes[0].predicates[0]=Path=/**
spring.cloud.gateway.routes[0].filters[0].name=RequestRateLimiter
spring.cloud.gateway.routes[0].filters[0].args.key-resolver=#{@ipKeyResolver}
spring.cloud.gateway.routes[0].filters[0].args.redis-rate-limiter.replenishRate=1
spring.cloud.gateway.routes[0].filters[0].args.redis-rate-limiter.burstCapacity=3
spring.cloud.gateway.routes[0].filters[1]=StripPrefix=1
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import reactor.core.publisher.Mono;
@Configuration
public class Configure {
// @Bean
// KeyResolver apiKeyResolver() {
// //按URL限流,即以每秒内请求数按URL分组统计，超出限流的url请求都将返回429状态
// return exchange -> Mono.just(exchange.getRequest().getPath().toString());
// }
//
// @Bean
// KeyResolver userKeyResolver() {
// //按用户限流
// return exchange -> Mono.just(exchange.getRequest().getQueryParams().getFirst("user"));
// }
@Bean
KeyResolver ipKeyResolver() {
//按IP来限流
return exchange -> Mono.just(exchange.getRequest().getRemoteAddress().getHostName());
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("Configure")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
(1) 依次启动
Eureka注册中心、Getway路由生产者1、GetWay路由消费者(2) 启动完所有服务，测试
Web页面地址：http://localhost:8312/client-test/index
07. Springboot(2.0)集成SpringGetWay(熔断降级)
1.Eureka注册中心
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<!-- 这个依赖本来是可以不加的，但是配置没办法刷新，加上它可以手动刷新配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8300
spring.application.name=eurekaServer
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;@EnableAutoConfiguration@EnableEurekaServerpublic class Start { public static void main(String[] args) { SpringApplication.run(Start.class, args); }}
2.GetWay路由消费者1
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=client-test
eureka.client.healthcheck.enabled = true
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.instance.instance-id=${spring.cloud.client.ip-address}:${server.port}
eureka.instance.prefer-ip-address=true
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@Value("${spring.cloud.client.ip-address}:${server.port}")
private String instance_id;
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return instance_id;
}
@RequestMapping(value = "/gatewayFallback",method = RequestMethod.GET)
public String Fallback() {
return "接口熔断";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.GetWay路由消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
<version>2.2.3.RELEASE</version>
</dependency>
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>0.9.4.RELEASE</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.74</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis-reactive</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
</dependencies>
(2) 在主启动目录resources资源文件夹中创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.main.allow-bean-definition-overriding=true
spring.application.name=startGateway
eureka.client.healthcheck.enabled = true
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8300/eureka/
eureka.instance.instance-id=gateway8312
eureka.instance.prefer-ip-address=true
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90
spring.cloud.gateway.discovery.locator.enabled=false
#开启小写验证，默认feign根据服务名查找都是用的全大写
spring.cloud.gateway.discovery.locator.lowerCaseServiceId=true
spring.cloud.gateway.routes[0].id=client-test
spring.cloud.gateway.routes[0].uri=lb://client-test
#spring.cloud.gateway.routes[0].predicates[0]=Path=/api/**
spring.cloud.gateway.routes[0].predicates[0]=Path=/**
#使用内置的HystrixGatewayFilterFactory工厂类做熔断降级
spring.cloud.gateway.routes[0].filters[0].name=Hystrix
# Hystrix的bean名称
spring.cloud.gateway.routes[0].filters[0].args.name=testHystrix
spring.cloud.gateway.routes[0].filters[0].args.fallbackUri=forward:/gatewayFallback
spring.cloud.gateway.routes[0].filters[1]=StripPrefix=1
hystrix.command.default.execution.isolation.strategy=SEMAPHORE
#接口超时时间为2秒
hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=2000
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("Configure")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
(1) 依次启动
Eureka注册中心、Getway路由生产者1、GetWay路由消费者(2) 启动完所有服务，测试
Web页面地址：http://localhost:8312/client-test/index
08. Springboot热部署
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
#热部署生效
spring.devtools.restart.enabled= true
#设置重启的目录
#spring.devtools.restart.additional-paths: src/main/java
#classpath目录下的WEB-INF文件夹内容修改不重启
spring.devtools.restart.exclude= WEB-INF/**
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/login",method = RequestMethod.GET)
public String Login() {
return "成功";
}
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return "成功";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
09. Springboot(2.0)中集成Mybaits和Durid操作Mysql(普通配置)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<!-- Spring Boot Mybatis 依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.datasource.url=jdbc:mysql://192.168.0.19:3860/test?serverTimezone=UTC&useSSL=true
spring.datasource.username=mysql
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.druid.initial-size=10
spring.datasource.druid.max-active=50
spring.datasource.druid.min-idle=10
spring.datasource.druid.max-wait=5000
spring.datasource.druid.pool-prepared-statements=true
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
spring.datasource.druid.validation-query=SELECT 1 FROM DUAL
spring.datasource.druid.validation-query-timeout=20000
spring.datasource.druid.test-on-borrow=false
spring.datasource.druid.test-on-return=false
spring.datasource.druid.test-while-idle=true
spring.datasource.druid.time-between-eviction-runs-millis=60000
mybatis.type-aliases-package=Entity
mybatis.mapperLocations=classpath:mapper/*.xml
(3) 在资源文件夹resources文件夹中创建mapper文件夹，并创建userMapper.xml文件
userMapper.xml文件中内容：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="Dao.UserDao">
<resultMap id="BaseResultMap" type="Entity.User">
<result column="id" property="id"/>
<result column="name" property="name"/>
<result column="age" property="age"/>
<result column="address" property="address"/>
<result column="create_time" jdbcType="TIMESTAMP" property="createTime" />
<result column="update_time" jdbcType="TIMESTAMP" property="updateTime" />
</resultMap>
<sql id="Base_Column_List">
id, name, age,address, create_time, update_time
</sql>
<select id="selectAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from user order by age
</select>
</mapper>
(4) 创建Entity包，并创建User.java文件
User.java文件中内容：
import java.util.Date;
public class User {
private int id;
private String name;
private int age;
private String address;
private Date createTime;
private Date updateTime;
public User() {
}
public User(int id, String name, int age, String address) {
this.id = id;
this.name = name;
this.age = age;
this.address = address;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
public Date getUpdateTime() {
return updateTime;
}
public void setUpdateTime(Date updateTime) {
this.updateTime = updateTime;
}
}
(5) 创建Dao包，并创建UserDao.java文件
UserDao.java文件中内容：
import java.util.List;
import org.apache.ibatis.annotations.Mapper;
import Entity.*;
@Mapper
public interface UserDao {
List<User> selectAll();
}
(6) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import Dao.*;
import Entity.*;
@CrossOrigin
@Controller
public class controller {
@Autowired
private UserDao userDao;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public List<User> Index() throws Exception {
List<User> users = userDao.selectAll();
return users;
}
}
(7) 主启动目录中内容
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
@MapperScan("Dao")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
10. Springboot(2.0)集成Zuul路由Ribbon负载均衡
1.Eureka服务器端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=eureka-server
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.路由消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8312
spring.application.name=startGateway
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
zuul.routes.api.path=/api/**
zuul.routes.api.service-id=serviceA
zuul.routes.api.stripPrefix=false
eureka.client.healthcheck.enabled=true
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;
@EnableAutoConfiguration
@EnableEurekaClient
@EnableZuulProxy
public class Start {
@Bean
@LoadBalanced //调用方法时启用负载均衡
public RestTemplate getRestTemplate(){
return new RestTemplate();
}
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.路由生产者01
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-jdbc-spring-boot-starter</artifactId>
<version>${sharding-sphere.version}</version>
</dependency>
<!-- Spring Boot Mybatis 依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8313
spring.application.name=serviceA
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
eureka.client.healthcheck.enabled = true
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@GetMapping("/api/{name}")
public String Api(@PathVariable("name") String name) {
return "hello " + name + " this is ZuulTestFive";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
4.路由生产者02
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-jdbc-spring-boot-starter</artifactId>
<version>${sharding-sphere.version}</version>
</dependency>
<!-- Spring Boot Mybatis 依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8314
spring.application.name=serviceA
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
eureka.client.healthcheck.enabled = true
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@GetMapping("/api/{name}")
public String Api(@PathVariable("name") String name) {
return "hello " + name + " this is ZuulTestFive";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableEurekaClient
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
(1) 启动eureka服务器端服务 (2) 启动zuul生产者服务 (3) 启动zuul消费者01服务 (4) 启动zuul消费者02服务 (5) 测试访问地址：http://localhost:8312/api/jacks
11. Springboot(2.0)接口重用
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
(2) 创建service包，并创建UserService.java文件
UserService.java文件中内容：
import org.springframework.stereotype.Component;
@Component
public interface UserService {
void printShow();
}
(3) 在service包中创建UserService1Impl.java文件
UserService1Impl.java文件中内容：
import org.springframework.stereotype.Service;
@Service(value="userService1")
public class UserService1Impl implements UserService {
@Override
public void printShow() {
System.out.println("service1输出");
}
}
(4) 在service包中创建UserService2Impl.java文件
UserService2Impl.java文件中内容：
import org.springframework.stereotype.Service;
@Service(value="userService2")
public class UserService2Impl implements UserService {
@Override
public void printShow() {
System.out.println("service2输出");
}
}
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import service.*;
@CrossOrigin
@RestController
public class controller {
@Resource(name="userService1")
private UserService userService1;
@Resource(name="userService1")
private UserService userService2;
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
userService1.printShow();
userService2.printShow();
return "成功";
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller,service")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
12. Springboot(2.0)集成Springdata操作Redis(多数据源)(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.data.redis.database = 0
spring.data.redis.host = 192.168.0.19
spring.data.redis.port = 8302
spring.data.redis.password =
spring.data.redis.timeout = 2000
spring.data.redis.max-active = 30
spring.data.redis.max-idle = 30
spring.data.redis.max-waite = 30
spring.data.redis.min-idle = 30
spring.data.redis.max-wait = 6000
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.jedis.JedisClientConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import redis.clients.jedis.JedisPoolConfig;
@Configuration
public class Configure {
@Value("${spring.data.redis.database}")
private int dbIndex;
@Value("${spring.data.redis.host}")
private String host;
@Value("${spring.data.redis.port}")
private int port;
@Value("${spring.data.redis.password}")
private String password;
@Value("${spring.data.redis.timeout}")
private int timeout;
@Value("${spring.data.redis.max-active}")
private int redisPoolMaxActive;
@Value("${spring.data.redis.max-wait}")
private int redisPoolMaxWait;
@Value("${spring.data.redis.max-idle}")
private int redisPoolMaxIdle;
@Value("${spring.data.redis.min-idle}")
private int redisPoolMinIdle;
@Bean
public JedisConnectionFactory redisConnectionFactory() {
RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
redisStandaloneConfiguration.setHostName(host);
redisStandaloneConfiguration.setPort(port);
redisStandaloneConfiguration.setDatabase(dbIndex);
//redisStandaloneConfiguration.setPassword(password);
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMaxIdle(redisPoolMaxIdle);
poolConfig.setMinIdle(redisPoolMinIdle);
poolConfig.setMaxTotal(redisPoolMaxActive);
poolConfig.setMaxWaitMillis(redisPoolMaxWait);
poolConfig.setTestOnBorrow(true);
JedisClientConfiguration.JedisClientConfigurationBuilder jedisClientConfigurationBuilder = JedisClientConfiguration.builder();
JedisClientConfiguration jedisClientConfiguration = jedisClientConfigurationBuilder.usePooling().poolConfig(poolConfig).build();
JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(redisStandaloneConfiguration,jedisClientConfiguration);
return jedisConnectionFactory;
}
@Bean(name="basicRedisTemplate")
public RedisTemplate<Object,Object> defaultRedisTemplate() {
RedisTemplate<Object,Object> template = new RedisTemplate<Object,Object>();
template.setConnectionFactory(redisConnectionFactory());
Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
// 设置value的序列化规则和 key的序列化规则
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(jackson2JsonRedisSerializer);
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import javax.annotation.Resource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@CrossOrigin
@Controller
public class controller {
@Resource(name="basicRedisTemplate")
RedisTemplate<String,String> template;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public String Index() {
if(!template.hasKey("key")){
//写入内容
template.opsForValue().set("key","字符串");
}
else{
//删除数据
template.delete("key");
}
return "成功";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
13. Springboot(2.0)集成Springdata操作Redis(缓存)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.redis.database=0
spring.redis.host=192.168.0.19
spring.redis.port=8302
spring.redis.timeout=2000
spring.redis.jedis.pool.max-idle=8
spring.redis.jedis.pool.max-wait=-1ms
spring.redis.jedis.pool.min-idle=0
spring.redis.jedis.pool.max-active=8
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import java.time.Duration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
@Configuration
@EnableCaching
public class Configure {
@Autowired
RedisConnectionFactory redisConnectionFactory;
@Bean
public CacheManager cacheManager(RedisConnectionFactory factory) {
RedisSerializer<String> redisSerializer = new StringRedisSerializer();
Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
//解决查询缓存转换异常的问题
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
// 配置序列化（解决乱码的问题）,过期时间30秒
RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
.entryTtl(Duration.ofSeconds(1800000))
.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
.disableCachingNullValues();
RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
.cacheDefaults(config)
.build();
return cacheManager;
}
@Bean
public RedisTemplate<Object,Object> defaultRedisTemplate() {
RedisTemplate<Object,Object> template = new RedisTemplate<Object,Object>();
template.setConnectionFactory(redisConnectionFactory);
Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
// 设置value的序列化规则和 key的序列化规则
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(jackson2JsonRedisSerializer);
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
@CrossOrigin
@Controller
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
@Cacheable(value = "test", key = "#id")
public String Index(@RequestParam("id") String id) {
return "成功";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
**注：**删除缓存方法
(1) 删除指定
key值@Caching(evict = { @CacheEvict(value = "MyRedis",key="redis") })(2) 删除指定文件下
value值所有key值@Caching(evict = { @CacheEvict(value = "MyRedis",allEntries=true/*表示删除MyRedis文件下所有的缓存*/) })
14. Springboot(2.0)集成Springdata操作Redis(common-pool连接池)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>2.9.0</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.redis.database=0
spring.redis.host=192.168.0.19
spring.redis.port=8302
#Redis服务器连接密码（默认为空）
#spring.redis.password=redis123
#连接池最大连接数（使用负值表示没有限制）
spring.redis.lettuce.pool.max-active=8
#连接池最大阻塞等待时间（使用负值表示没有限制）
spring.redis.lettuce.pool.max-wait=-1
#连接池中的最大空闲连接
spring.redis.lettuce.pool.max-idle=8
#连接池中的最小空闲连接
spring.redis.lettuce.pool.min-idle=0
#连接超时时间（毫秒）
spring.redis.timeout=30000
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
@Configuration
public class Configure {
@Autowired
RedisConnectionFactory redisConnectionFactory;
@Bean
public RedisTemplate<Object,Object> defaultRedisTemplate() {
RedisTemplate<Object,Object> template = new RedisTemplate<Object,Object>();
template.setConnectionFactory(redisConnectionFactory);
Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
// 设置value的序列化规则和 key的序列化规则
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(jackson2JsonRedisSerializer);
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@CrossOrigin
@Controller
public class controller {
@Autowired
RedisTemplate<String,String> template;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public String Index() {
//写入内容
template.opsForValue().set("key","字符串");
return "成功";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
15. Springboot中集成jasypt配置文件加密(自定义加密器)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.github.ulisesbocchio</groupId>
<artifactId>jasypt-spring-boot-starter</artifactId>
<version>3.0.2</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
jasypt.encryptor.bean=codeSheepEncryptorBean
spring.datasource.password=123456
jasypt.encryptor.property.prefix=CodeSheep(
jasypt.encryptor.property.suffix=)
redis.password=CodeSheep(jkKPn/BDQMyplqDQ1Nxp2JB3VlpJZGbsNe2UCTzfI38CsZ/+nV0MbSxZ/EKFr4QP)
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.jasypt.encryption.StringEncryptor;
import org.jasypt.encryption.pbe.PooledPBEStringEncryptor;
import org.jasypt.encryption.pbe.config.SimpleStringPBEConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
@Configuration
public class Configure {
@Autowired
private ApplicationContext appCtx;
@Autowired
private StringEncryptor codeSheepEncryptorBean;
@Bean(name="codeSheepEncryptorBean" )
public StringEncryptor codesheepStringEncryptor() {
PooledPBEStringEncryptor encryptor = new PooledPBEStringEncryptor();
SimpleStringPBEConfig config = new SimpleStringPBEConfig();
config.setPassword("CodeSheep");
config.setAlgorithm("PBEWITHHMACSHA512ANDAES_256");
config.setKeyObtentionIterations("1000");
config.setPoolSize("1");
config.setProviderName("SunJCE");
config.setSaltGeneratorClassName("org.jasypt.salt.RandomSaltGenerator");
config.setIvGeneratorClassName("org.jasypt.iv.RandomIvGenerator");
config.setStringOutputType("base64");
encryptor.setConfig(config);
return encryptor;
}
@Bean
public String init() {
Environment environment = appCtx.getBean(Environment.class);
String redisOriginPswd = environment.getProperty("redis.password");
System.out.println(redisOriginPswd);
//此处将原始密码加密,然后在配置文件中加ENC(<加密字符串>)
//String redisEncryptedPswd = decrypt( redisOriginPswd);
//System.out.println(redisEncryptedPswd);
return "sd";
}
private String encrypt( String originPassord ) {
String encryptStr = codeSheepEncryptorBean.encrypt( originPassord );
return encryptStr;
}
private String decrypt( String encryptedPassword ) {
String decryptStr = codeSheepEncryptorBean.decrypt( encryptedPassword );
return decryptStr;
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
(1) 启动参数启动
java -jar yourproject.jar --jasypt.encryptor.password=CodeSheep
16. Springboot(2.0)中集成mybatis(树形结构查询)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<!-- Spring Boot Mybatis 依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.mysql.url=jdbc:mysql://127.0.0.1:3358/test?serverTimezone=UTC&useSSL=true
spring.mysql.username=mysql
spring.mysql.password=123456
spring.mysql.driver-class=com.mysql.jdbc.Driver
(3) 在资源文件夹resources中创建mapper文件夹，并在mapper文件夹中创建personMapper.xml文件
personMapper.xml文件中内容：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="Dao.PersonDao">
<resultMap id="BaseTreeResultMap" type="Entity.Person">
<result column="id" property="id"/>
<result column="parent_id" property="parentId"/>
<result column="name" property="name"/>
<collection column="id" property="child" javaType="java.util.ArrayList"
ofType="Entity.Person" select="getNextPersonTree"/>
</resultMap>
<resultMap id="NextTreeResultMap" type="Entity.Person">
<result column="id" property="id"/>
<result column="name" property="name"/>
<result column="parent_id" property="parentId"/>
<collection column="id" property="child" javaType="java.util.ArrayList"
ofType="Entity.Person" select="getNextPersonTree"/>
</resultMap>
<sql id="Base_Column_List">
id, name,parent_id
</sql>
<select id="getNextPersonTree" resultMap="NextTreeResultMap">
SELECT id,name
FROM person
WHERE parent_id = #{id}
</select>
<select id="getNodeTree" resultMap="BaseTreeResultMap">
SELECT
<include refid="Base_Column_List"/>
FROM person
WHERE parent_id = 23
</select>
</mapper>
(4) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import javax.sql.DataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import com.alibaba.druid.pool.DruidDataSource;
@Configuration
@MapperScan(basePackages ="Dao")
public class Configure {
@Value("${spring.mysql.url}")
private String url;
@Value("${spring.mysql.username}")
private String username;
@Value("${spring.mysql.password}")
private String password;
@Value("${spring.mysql.driver-class}")
private String driverName;
@Bean
@Primary
public DataSource basicDataSource() throws Exception {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
dataSource.setDriverClassName(driverName);
//连接池配置
dataSource.setMaxActive(3000);
dataSource.setMinIdle(5);
dataSource.setInitialSize(5);
dataSource.setMaxWait(60000);
dataSource.setTimeBetweenEvictionRunsMillis(60000);
dataSource.setMinEvictableIdleTimeMillis(300000);
dataSource.setTestWhileIdle(true);
dataSource.setTestOnBorrow(true);
dataSource.setTestOnReturn(true);
dataSource.setValidationQuery("SELECT 'x'");
dataSource.setPoolPreparedStatements(true);
dataSource.setMaxPoolPreparedStatementPerConnectionSize(20);
return dataSource;
}
@Bean(name = "testSqlSessionFactory")
public SqlSessionFactory testSqlSessionFactory() throws Exception {
SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
factoryBean.setDataSource(basicDataSource());
PathMatchingResourcePatternResolver pathMatch = new PathMatchingResourcePatternResolver();
factoryBean.setMapperLocations(pathMatch.getResources("classpath:mapper/*.xml"));
return factoryBean.getObject();
}
@Bean(name = "testSqlSessionTemplate")
public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("testSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
return new SqlSessionTemplate(sqlSessionFactory);
}
}
(5) 创建Entity包，并创建Person.java文件
Person.java文件中内容：
import java.util.List;
public class Person {
private int id;
private int parentId;
private String name;
//子节点
private List<Person> child;
public Person() {
}
public Person(int id, int parentId, String name, List<Person> child) {
this.id = id;
this.parentId = parentId;
this.name = name;
this.child = child;
}
public void setId(int id) {
this.id = id;
}
public int getId() {
return id;
}
public void setParentId(int parentId) {
this.parentId = parentId;
}
public int getParentId() {
return parentId;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setChild(List<Person> child) {
this.child = child;
}
public List<Person> getChild() {
return child;
}
}
(6) 创建Dao包，并创建PersonDao.java文件
PersonDao.java文件中内容：
import java.util.List;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import Entity.*;
@Mapper
public interface PersonDao {
@Select("select * from person where id = #{id}")
Person getPerson(int id);
//查询所有节点
List<Person> getNodeTree();
//查询节点
List<Person> getNextPersonTree(int parentId);
}
(7) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import Dao.*;
@CrossOrigin
@Controller
public class controller {
@Autowired
private PersonDao personDao;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public List<Person> Index() throws Exception {
List<Person> list =personDao.getNextPersonTree(23);
return list;
}
}
(8) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
17. Springboot集成mybait plus(增强型mybaits)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.0.4</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.mysql.url=jdbc:mysql://127.0.0.1:3358/test?serverTimezone=UTC&useSSL=true
spring.mysql.username=mysql
spring.mysql.password=123456
spring.mysql.driver-class=com.mysql.jdbc.Driver
# 初始化大小，最小，最大
spring.mysql.initialSize=5
spring.mysql.minIdle=5
spring.mysql.maxActive=20
# 配置获取连接等待超时的时间
spring.mysql.maxWait=60000
# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
spring.mysql.timeBetweenEvictionRunsMillis=60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
spring.mysql.minEvictableIdleTimeMillis=300000
# 测试连接
spring.mysql.testWhileIdle=true
spring.mysql.testOnBorrow=false
spring.mysql.testOnReturn=false
# 打开PSCache，并且指定每个连接上PSCache的大小
spring.mysql.poolPreparedStatements=true
spring.mysql.maxPoolPreparedStatementPerConnectionSize=20
# 配置监控统计拦截的filters
spring.mysql.filters=stat
# asyncInit是1.1.4中新增加的配置，如果有initialSize数量较多时，打开会加快应用启动时间
spring.mysql.asyncInit=true
(3) 资源文件夹resources中创建mapper文件夹，并在mapper文件夹中创建personMapper.xml文件
personMapper.xml文件中内容：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="Dao.PersonDao">
<resultMap id="BaseTreeResultMap" type="Entity.Person">
<result column="id" property="id"/>
<result column="parent_id" property="parentId"/>
<result column="name" property="name"/>
<collection column="id" property="child" javaType="java.util.ArrayList"
ofType="Entity.Person" select="getNextPersonTree"/>
</resultMap>
<resultMap id="NextTreeResultMap" type="Entity.Person">
<result column="id" property="id"/>
<result column="name" property="name"/>
<result column="parent_id" property="parentId"/>
<collection column="id" property="child" javaType="java.util.ArrayList"
ofType="Entity.Person" select="getNextPersonTree"/>
</resultMap>
<sql id="Base_Column_List">
id, name,parent_id
</sql>
<select id="getNextPersonTree" resultMap="NextTreeResultMap">
SELECT id,name
FROM person
WHERE parent_id = #{id}
</select>
<select id="getNodeTree" resultMap="BaseTreeResultMap">
SELECT
<include refid="Base_Column_List"/>
FROM person
WHERE parent_id = 23
</select>
</mapper>
(4) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import javax.sql.DataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import com.alibaba.druid.pool.DruidDataSource;
@Configuration
@MapperScan(basePackages ="Dao")
public class Configure {
@Value("${spring.mysql.url}")
private String url;
@Value("${spring.mysql.username}")
private String username;
@Value("${spring.mysql.password}")
private String password;
@Value("${spring.mysql.driver-class}")
private String driverName;
@Bean
@Primary
public DataSource basicDataSource() throws Exception {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
dataSource.setDriverClassName(driverName);
//连接池配置
dataSource.setMaxActive(3000);
dataSource.setMinIdle(5);
dataSource.setInitialSize(5);
dataSource.setMaxWait(60000);
dataSource.setTimeBetweenEvictionRunsMillis(60000);
dataSource.setMinEvictableIdleTimeMillis(300000);
dataSource.setTestWhileIdle(true);
dataSource.setTestOnBorrow(true);
dataSource.setTestOnReturn(true);
dataSource.setValidationQuery("SELECT 'x'");
dataSource.setPoolPreparedStatements(true);
dataSource.setMaxPoolPreparedStatementPerConnectionSize(20);
return dataSource;
}
@Bean(name = "testSqlSessionFactory")
public SqlSessionFactory testSqlSessionFactory() throws Exception {
SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
factoryBean.setDataSource(basicDataSource());
PathMatchingResourcePatternResolver pathMatch = new PathMatchingResourcePatternResolver();
factoryBean.setMapperLocations(pathMatch.getResources("classpath:mapper/*.xml"));
return factoryBean.getObject();
}
@Bean(name = "testSqlSessionTemplate")
public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("testSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
return new SqlSessionTemplate(sqlSessionFactory);
}
}
(5) 创建Entity包，并创建Person.java文件
Person.java文件中内容：
import java.util.List;
public class Person {
private int id;
private int parentId;
private String name;
//子节点
private List<Person> child;
public Person() {
}
public Person(int id, int parentId, String name, List<Person> child) {
this.id = id;
this.parentId = parentId;
this.name = name;
this.child = child;
}
public void setId(int id) {
this.id = id;
}
public int getId() {
return id;
}
public void setParentId(int parentId) {
this.parentId = parentId;
}
public int getParentId() {
return parentId;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setChild(List<Person> child) {
this.child = child;
}
public List<Person> getChild() {
return child;
}
}
(6) 创建Dao包，并创建PersoDao.java文件
PersonDao.java文件中内容：
import java.util.List;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import Entity.*;
@Mapper
public interface PersonDao {
@Select("select * from person where id = #{id}")
Person getPerson(int id);
//查询所有节点
List<Person> getNodeTree();
//查询节点
List<Person> getNextPersonTree(int parentId);
}
(7) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import Dao.*;
@CrossOrigin
@Controller
public class controller {
@Autowired
private PersonDao personDao;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public List<Person> Index() throws Exception {
List<Person> list =personDao.getNextPersonTree(23);
return list;
}
}
(8) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
18. Springboot集成Easyexcel(操作Excel)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>2.1.4</version>
</dependency>
</dependencies>
(2) 创建Entity包，并创建Users.java文件
Users.java文件中内容：
import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.metadata.BaseRowModel;
public class Users extends BaseRowModel {
@ExcelProperty(value = "姓名",index = 0)
private String name;
@ExcelProperty(value = "地址",index = 1)
private String address;
public Users() {
}
public Users(String name, String address) {
this.name = name;
this.address = address;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.util.IOUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.metadata.Sheet;
import com.alibaba.excel.support.ExcelTypeEnum;
import Entity.*;
@RestController
public class controller {
@RequestMapping(value="/index",method={RequestMethod.GET,RequestMethod.POST})
public ResultJson Index(){
return ResultJson.Success();
}
@GetMapping("/download")
public void DownloadExcel(HttpServletResponse response) throws IOException {
Users u1 = new Users("张三","广东");
Users u2 = new Users("李四","四川");
List<Users> list = new ArrayList<Users>();
list.add(u1);
list.add(u2);
ServletOutputStream out = response.getOutputStream();
@SuppressWarnings("deprecation")
ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true);
String fileName = "测试exportExcel";
Sheet sheet = new Sheet(1, 0,Users.class);
//设置自适应宽度
sheet.setAutoWidth(Boolean.TRUE);
// 第一个 sheet 名称
sheet.setSheetName("第一个sheet");
writer.write(list, sheet);
//通知浏览器以附件的形式下载处理，设置返回头要注意文件名有中文
response.setHeader("Content-disposition", "attachment;filename=" + new String( fileName.getBytes("gb2312"), "ISO8859-1" ) + ".xlsx");
writer.finish();
response.setContentType("application/vnd.ms-excel");
response.setCharacterEncoding("utf-8");
out.flush();
IOUtils.closeQuietly(out);
}
}
(4) 主启目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
19. Springboot集成EasyPoi(操作Excel)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-spring-boot-starter</artifactId>
<version>4.1.0</version>
</dependency>
</dependencies>
或
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- easy-poi -->
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>4.1.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>4.1.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>4.1.0</version>
</dependency>
</dependencies>
(2) 创建Entity包，并创建Users.java文件
Uers.java文件中内容：
import cn.afterturn.easypoi.excel.annotation.Excel;
public class Users {
@Excel(name = "姓名", orderNum = "0", width = 15)
private String name;
@Excel(name = "地址", orderNum = "1", width = 15)
private String address;
public Users() {
}
public Users(String name, String address) {
this.name = name;
this.address = address;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
(3) 创建controller包，并创建ExcelUtils.java文件
ExcelUtils.java文件中内容：
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.web.multipart.MultipartFile;
import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.ExcelImportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.ImportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
public class ExcelUtils {
/**
* excel 导出
*
* @param list 数据
* @param title 标题
* @param sheetName sheet名称
* @param pojoClass pojo类型
* @param fileName 文件名称
* @param isCreateHeader 是否创建表头
* @param response
*/
public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName,
boolean isCreateHeader, HttpServletResponse response) throws IOException {
ExportParams exportParams = new ExportParams(title, sheetName, ExcelType.XSSF);
exportParams.setCreateHeadRows(isCreateHeader);
defaultExport(list, pojoClass, fileName, response, exportParams);
}
/**
* excel 导出
*
* @param list 数据
* @param title 标题
* @param sheetName sheet名称
* @param pojoClass pojo类型
* @param fileName 文件名称
* @param response
*/
public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName,
HttpServletResponse response) throws IOException {
defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName, ExcelType.XSSF));
}
/**
* excel 导出
*
* @param list 数据
* @param pojoClass pojo类型
* @param fileName 文件名称
* @param response
* @param exportParams 导出参数
*/
public static void exportExcel(List<?> list, Class<?> pojoClass, String fileName, ExportParams exportParams,
HttpServletResponse response) throws IOException {
defaultExport(list, pojoClass, fileName, response, exportParams);
}
/**
* excel 导出
*
* @param list 数据
* @param fileName 文件名称
* @param response
*/
public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response)
throws IOException {
defaultExport(list, fileName, response);
}
/**
* 默认的 excel 导出
*
* @param list 数据
* @param pojoClass pojo类型
* @param fileName 文件名称
* @param response
* @param exportParams 导出参数
*/
private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response,
ExportParams exportParams) throws IOException {
Workbook workbook = ExcelExportUtil.exportExcel(exportParams, pojoClass, list);
downLoadExcel(fileName, response, workbook);
}
/**
* 默认的 excel 导出
*
* @param list 数据
* @param fileName 文件名称
* @param response
*/
private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response)
throws IOException {
Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);
downLoadExcel(fileName, response, workbook);
}
/**
* 下载
*
* @param fileName 文件名称
* @param response
* @param workbook excel数据
*/
private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook)
throws IOException {
try {
response.setCharacterEncoding("UTF-8");
response.setHeader("content-Type", "application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment;filename="
+ URLEncoder.encode(fileName + "." + ExcelTypeEnum.XLSX.getValue(), "UTF-8"));
workbook.write(response.getOutputStream());
} catch (Exception e) {
throw new IOException(e.getMessage());
}
}
/**
* excel 导入
*
* @param filePath excel文件路径
* @param titleRows 标题行
* @param headerRows 表头行
* @param pojoClass pojo类型
* @param <T>
* @return
*/
public static <T> List<T> importExcel(String filePath, Integer titleRows, Integer headerRows, Class<T> pojoClass)
throws IOException {
if (StringUtils.isBlank(filePath)) {
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
params.setNeedSave(true);
params.setSaveUrl("/excel/");
try {
return ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);
} catch (NoSuchElementException e) {
throw new IOException("模板不能为空");
} catch (Exception e) {
throw new IOException(e.getMessage());
}
}
/**
* excel 导入
*
* @param file excel文件
* @param pojoClass pojo类型
* @param <T>
* @return
*/
public static <T> List<T> importExcel(MultipartFile file, Class<T> pojoClass) throws IOException {
return importExcel(file, 1, 1, pojoClass);
}
/**
* excel 导入
*
* @param file excel文件
* @param titleRows 标题行
* @param headerRows 表头行
* @param pojoClass pojo类型
* @param <T>
* @return
*/
public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass)
throws IOException {
return importExcel(file, titleRows, headerRows, false, pojoClass);
}
/**
* excel 导入
*
* @param file 上传的文件
* @param titleRows 标题行
* @param headerRows 表头行
* @param needVerfiy 是否检验excel内容
* @param pojoClass pojo类型
* @param <T>
* @return
*/
public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, boolean needVerfiy,
Class<T> pojoClass) throws IOException {
if (file == null) {
return null;
}
try {
return importExcel(file.getInputStream(), titleRows, headerRows, needVerfiy, pojoClass);
} catch (Exception e) {
throw new IOException(e.getMessage());
}
}
/**
* excel 导入
*
* @param inputStream 文件输入流
* @param titleRows 标题行
* @param headerRows 表头行
* @param needVerfiy 是否检验excel内容
* @param pojoClass pojo类型
* @param <T>
* @return
*/
public static <T> List<T> importExcel(InputStream inputStream, Integer titleRows, Integer headerRows,
boolean needVerify, Class<T> pojoClass) throws IOException {
if (inputStream == null) {
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
params.setSaveUrl("/excel/");
params.setNeedSave(true);
params.setNeedVerify(needVerify);
try {
return ExcelImportUtil.importExcel(inputStream, pojoClass, params);
} catch (NoSuchElementException e) {
throw new IOException("excel文件不能为空");
} catch (Exception e) {
throw new IOException(e.getMessage());
}
}
/**
* Excel 类型枚举
*/
enum ExcelTypeEnum {
XLS("xls"), XLSX("xlsx");
private String value;
ExcelTypeEnum(String value) {
this.value = value;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
}
(4) 在controller包中创建controller.java文件
controller.java文件中内容：
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import Entity.*;
@RestController
public class controller {
@RequestMapping(value="/index",method={RequestMethod.GET,RequestMethod.POST})
public ResultJson Index(){
return ResultJson.Success();
}
@GetMapping("/export")
public void ExportExcel(HttpServletResponse response) throws IOException {
Users u1 = new Users("张三","广东");
Users u2 = new Users("李四","四川");
List<Users> list = new ArrayList<Users>();
list.add(u1);
list.add(u2);
ExcelUtils.exportExcel(list, "员工信息", "员工信息sheet", Users.class, "员工信息表", response);
}
@PostMapping("/import")
public List<Users> ImportExcel(@RequestParam("file") MultipartFile file) throws IOException {
List<Users> list = ExcelUtils.importExcel(file, Users.class);
return list;
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
20. Springboot集成Minio文件系统
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.minio</groupId>
<artifactId>minio</artifactId>
<version>7.0.2</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.minio.url = http://127.0.0.1:3580
spring.minio.accessKey = minioadmin
spring.minio.secretKey = minioadmin
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import io.minio.MinioClient;
@Configuration
public class Configure {
@Value("${spring.minio.url}")
private String url;
@Value("${spring.minio.accessKey}")
private String accessKey;
@Value("${spring.minio.secretKey}")
private String secretKey;
@Bean
public MinioClient minioClient() {
//初始化minio客户端
MinioClient minioClient = null;
try {
minioClient = new MinioClient(url, accessKey, secretKey);
}
catch(Exception e) {
minioClient = null;
}
return minioClient;
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.io.InputStream;
import java.net.URLEncoder;
import javax.servlet.http.HttpServletResponse;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import io.minio.MinioClient;
import io.minio.ObjectStat;
import io.minio.PutObjectOptions;
@RestController
public class controller {
@Autowired
private MinioClient minioClient;
@RequestMapping(value="/upload",method={RequestMethod.GET,RequestMethod.POST})
public String Upload(@RequestParam("file") MultipartFile file) throws Exception {
InputStream is = file.getInputStream();
// 文件名
final String fileName = file.getOriginalFilename();
// 把文件放到minio的test桶里面
minioClient.putObject("test", fileName, is, new PutObjectOptions(is.available(), -1));
return "成功";
}
@RequestMapping(value="/download",method={RequestMethod.GET,RequestMethod.POST})
public void Download(@RequestParam("fileName") String fileName, HttpServletResponse response) throws Exception {
InputStream in = null;
ObjectStat stat = minioClient.statObject("test", fileName);
response.setContentType(stat.contentType());
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
in = minioClient.getObject("test", fileName);
IOUtils.copy(in, response.getOutputStream());
in.close();
}
@RequestMapping(value="/delete",method={RequestMethod.GET,RequestMethod.POST})
public String Delete(@RequestParam("fileName") String fileName) throws Exception {
minioClient.removeObject("test", fileName);
return "成功";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
21. Springboot集成限流访问(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.4.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>19.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
</dependencies>
(2) 创建aop包，并创建Limit.java文件
Limit.java文件中内容：
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface Limit {
//资源名称
String name() default "";
// 限制每秒访问次数，默认最大即不限制
double perSecond() default Double.MAX_VALUE;
}
(3) 在aop包中创建LimitAspect.java文件
LimitAspect.java文件中内容：
import java.lang.reflect.Method;
import java.util.concurrent.TimeUnit;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import com.google.common.util.concurrent.RateLimiter;
@Aspect
@Component
public class LimitAspect {
RateLimiter rateLimiter = RateLimiter.create(Double.MAX_VALUE);
@Pointcut("@annotation(aop.Limit)") //包名和限制标记
public void pointcut() {
}
@Around("pointcut()")
public Object around(ProceedingJoinPoint point) throws Throwable {
//获取目标方法
MethodSignature signature = (MethodSignature) point.getSignature();
Method method = signature.getMethod();
Limit limit = method.getAnnotation(Limit.class);
rateLimiter.setRate(limit.perSecond());
// 获取令牌桶中的一个令牌，最多等待1秒
if (rateLimiter.tryAcquire(1, 1, TimeUnit.SECONDS)) {
return point.proceed();
} else {
throw new LimitAccessException("网络异常，请稍后重试！");
}
}
}
(4) 在aop包中创建LimitAccessException.java文件
LimitAccessException.java文件中内容：
public class LimitAccessException extends RuntimeException {
private static final long serialVersionUID = -3608667856397125671L;
public LimitAccessException(String message) {
super(message);
}
}
(5) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import aop.*;
@Configuration
@EnableAspectJAutoProxy
@ComponentScan(basePackages = {"aop"})
public class Configure {
@Bean
public LimitAspect requestLimitAop() {
return new LimitAspect();
}
}
(6) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import aop.*;
@RestController
public class controller {
@RequestMapping(value="/index",method={RequestMethod.GET,RequestMethod.POST})
@Limit(name = "测试限流每秒3个请求", perSecond = 1)
public String Index() throws Exception {
return "ok";
}
}
(7) 创建Exceptions包，并创建MyExceptionHandler.java文件
MyExceptionHandler.java文件中内容：
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import aop.*;
@ControllerAdvice
public class MyExceptionHandler {
@ExceptionHandler(value = LimitAccessException.class)//指定拦截的异常
public void errorHandler(HttpServletRequest request, HttpServletResponse response,Exception e) throws Exception{
response.getWriter().write("xsfjslkjskjfsd");
response.getWriter().flush();
}
}
(8) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller,Exceptions")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
22. Springboot(2.0)中集成Netty(服务器端)(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.30.Final</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
netty.port = 8080
(3) 创建netty包，并创建NettyServer.java文件
NettyServer.java文件中内容：
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
@Component
public class NettyServer {
@Value("${netty.port}")
private int nettyPort;
private EventLoopGroup bossGroup = new NioEventLoopGroup();
private EventLoopGroup workGroup = new NioEventLoopGroup();
/**
* 启动netty服务
* @throws InterruptedException
*/
@PostConstruct
public void start() throws InterruptedException {
ServerBootstrap b=new ServerBootstrap();
b.group(bossGroup,workGroup)
.channel(NioServerSocketChannel.class)
.option(ChannelOption.SO_BACKLOG,128)
.childHandler(new NettyChannel());
ChannelFuture future = b.bind(nettyPort).sync();
if (future.isSuccess()) {
System.out.println("启动 Netty 成功");
}
}
/**
* 销毁
*/
@PreDestroy
public void destroy() {
bossGroup.shutdownGracefully().syncUninterruptibly();
workGroup.shutdownGracefully().syncUninterruptibly();
System.out.println("关闭 Netty 成功");
}
}
注：
(1)
@PostConstruct修饰的方法会在服务器加载Servlet的时候运行，并且只会被服务器调用一次，类似于Servlet的inti()方法。(2)
@PreDestroy修饰的方法会在服务器卸载Servlet的时候运行，并且只会被服务器调用一次，类似于Servlet的destroy()方法。
(4) 在netty包中创建NettyChannel.java文件
NettyChannel.java文件中内容：
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
public class NettyChannel extends ChannelInitializer<SocketChannel>{
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new NettyHandler());
}
}
(4) 在netty包中创建NettyHandler.java文件
NettyHandler.java文件中内容：
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
public class NettyHandler extends SimpleChannelInboundHandler<ByteBuf> {
@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {
//转十六进制
String str = ByteBufUtil.hexDump(buf).toLowerCase();
System.out.println(str);
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("netty")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
23. Springboot(2.0)中集成Netty(服务器端)(3)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.30.Final</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
netty.port = 8080
(3) 创建netty包，并创建NettyServer.java文件
NettyServer.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
@Component
public class NettyServer {
@Value("${netty.port}")
private int nettyPort;
private EventLoopGroup bossGroup = new NioEventLoopGroup();
private EventLoopGroup workGroup = new NioEventLoopGroup();
public void start() {
ServerBootstrap b=new ServerBootstrap();
try {
b.group(bossGroup,workGroup)
.channel(NioServerSocketChannel.class)
.option(ChannelOption.SO_BACKLOG,128)
.childHandler(new NettyChannel());
ChannelFuture future = b.bind(nettyPort).sync();
/*等待端口关闭*/
future.channel().closeFuture().sync();
}
catch(Exception e) {
e.printStackTrace();
}
finally{
bossGroup.shutdownGracefully();
workGroup.shutdownGracefully();
}
}
}
(4) 在netty包中创建NettyChannel.java文件
NettyChannel.java文件中内容：
import org.springframework.stereotype.Component;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
@Component
public class NettyChannel extends ChannelInitializer<SocketChannel>{
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new NettyHandler());
}
}
(4) 在netty包中创建NettyHandler.java文件
NettyHandler.java文件中内容：
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
public class NettyHandler extends SimpleChannelInboundHandler<ByteBuf> {
@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {
//转十六进制
String str = ByteBufUtil.hexDump(buf).toLowerCase();
System.out.println(str);
}
}
(5) 主启动目录中内容
import javax.annotation.Resource;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import netty.*;
@EnableAutoConfiguration
@ComponentScan("netty")
public class Start implements CommandLineRunner{
@Resource
private NettyServer nettyServer;
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
@Override
public void run(String... args) throws Exception {
// 开启服务
nettyServer.start();
}
}
注：
@Resource对象只初始化一次
24. Springboot(2.0)中集成Netty(消息服务器)
1.服务器端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.30.Final</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
netty.port = 8080
(3) 创建netty包，并创建NettyServer.java文件
NettyServer.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
@Component
public class NettyServer {
@Value("${netty.port}")
private int nettyPort;
private EventLoopGroup bossGroup = new NioEventLoopGroup();
private EventLoopGroup workGroup = new NioEventLoopGroup();
public void start() {
ServerBootstrap b=new ServerBootstrap();
try {
b.group(bossGroup,workGroup)
.channel(NioServerSocketChannel.class)
.option(ChannelOption.SO_BACKLOG,128)
.childHandler(new NettyChannel());
ChannelFuture future = b.bind(nettyPort).sync();
System.out.println("启动");
/*等待端口关闭*/
future.channel().closeFuture().sync();
}
catch(Exception e) {
e.printStackTrace();
}
finally{
bossGroup.shutdownGracefully();
workGroup.shutdownGracefully();
}
}
}
(4) 在netty包中创建NettyChannel.java文件
NettyChannel.java文件中内容：
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;
public class NettyChannel extends ChannelInitializer<SocketChannel>{
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new StringDecoder(CharsetUtil.UTF_8))
.addLast(new StringEncoder(CharsetUtil.UTF_8))
.addLast(new NettyHandler());
}
}
(5) 在netty包中创建NettyHandler.java文件
NettyHandler.java文件中内容：
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
public class NettyHandler extends SimpleChannelInboundHandler<ByteBuf> {
@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
ByteBuf buf = (ByteBuf) msg;
byte[] req = new byte[buf.readableBytes()];
buf.readBytes(req);
String body = new String(req,"UTF-8");
System.out.println(body);
}
public void exceptionCaught(ChannelHandlerContext ctx,Throwable cause) throws Exception{
ctx.close();
}
}
(6) 主启动目录中内容
import javax.annotation.Resource;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import netty.*;
@EnableAutoConfiguration
@ComponentScan("netty")
public class Start implements CommandLineRunner{
@Resource
private NettyServer nettyServer;
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
@Override
public void run(String... args) throws Exception {
// 开启服务
nettyServer.start();
}
}
2.客户端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.30.Final</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
netty.host=127.0.0.1
netty.port = 8080
(3) 创建netty包，并创建NettyClient.java文件
NettyClient.java文件中内容：
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;
@Component
public class NettyClient {
@Value("${netty.host}")
private String nettyHost;
@Value("${netty.port}")
private int nettyPort;
private EventLoopGroup workGroup = new NioEventLoopGroup();
@PostConstruct
public void start() throws InterruptedException {
Bootstrap b = new Bootstrap();
b.group(workGroup)
.channel(NioSocketChannel.class)
.option(ChannelOption.TCP_NODELAY,true)
.option(ChannelOption.SO_BACKLOG,128)
.handler(new NettyChannel());
ChannelFuture f = b.connect(nettyHost,nettyPort).sync();
System.out.println("启动");
/*等待端口关闭*/
f.channel().closeFuture().sync();
if (f.isSuccess()) {
System.out.println("启动 Netty 成功");
}
}
@PreDestroy
public void destroy() {
workGroup.shutdownGracefully().syncUninterruptibly();
System.out.println("关闭 Netty 成功");
}
}
(4) 在netty包中创建NettyChannel.java文件
NettyChannel.java文件中内容：
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;
public class NettyChannel extends ChannelInitializer<SocketChannel>{
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new StringDecoder(CharsetUtil.UTF_8))
.addLast(new StringEncoder(CharsetUtil.UTF_8))
.addLast(new NettyHandler());
}
}
(5) 在netty包中创建NettyHandler.java文件
NettyHandler.java文件中内容：
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
public class NettyHandler extends SimpleChannelInboundHandler<ByteBuf> {
@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
ByteBuf buf = (ByteBuf) msg;
byte[] req = new byte[buf.readableBytes()];
buf.readBytes(req);
String body = new String(req,"UTF-8");
System.out.println(body);
}
public void exceptionCaught(ChannelHandlerContext ctx,Throwable cause) throws Exception{
ctx.close();
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("netty")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
25. Springboot(2.0)中集成Netty中Websocket服务
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.30.Final</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port=8310
netty.port = 8080
(3) 创建netty包，并创建NettyServer.java文件
NettyServer.java文件中内容：
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.group.ChannelGroup;
import io.netty.channel.group.DefaultChannelGroup;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import io.netty.util.concurrent.GlobalEventExecutor;
public class NettyHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {
public static ChannelGroup channelGroup;
static {
channelGroup = new DefaultChannelGroup(GlobalEventExecutor.INSTANCE);
}
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
// 添加到channelGroup通道组
channelGroup.add(ctx.channel());
System.out.println("与客户端建立连接，通道开启！");
}
// 客户端与服务器关闭连接的时候触发
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
System.out.println("与客户端建立连接，通道关闭！");
channelGroup.remove(ctx.channel());
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
String message = msg.text() + " --- 你好，" + ctx.channel().localAddress() + " 给固定的人发消息";
ctx.channel().writeAndFlush(new TextWebSocketFrame(message));
//群发消息
message = "我是服务器，这里发送的是群消息";
channelGroup.writeAndFlush(new TextWebSocketFrame(message));
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx,Throwable cause) throws Exception{
ctx.close();
}
}
(4) 在netty包中创建NettyChannel.java文件
NettyChannel.java文件中内容：
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
import io.netty.handler.stream.ChunkedWriteHandler;
public class NettyChannel extends ChannelInitializer<SocketChannel>{
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new HttpServerCodec())
.addLast(new ChunkedWriteHandler())
.addLast(new HttpObjectAggregator(65536 * 10000))
.addLast(new WebSocketServerProtocolHandler("/ws", "WebSocket", true, 65536 * 10))
.addLast(new NettyHandler());
}
}
(5) 在netty包中创建NettyHandler.java文件
NettyHandler.java文件中内容：
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.group.ChannelGroup;
import io.netty.channel.group.DefaultChannelGroup;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import io.netty.util.concurrent.GlobalEventExecutor;
public class NettyHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {
public static ChannelGroup channelGroup;
static {
channelGroup = new DefaultChannelGroup(GlobalEventExecutor.INSTANCE);
}
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
// 添加到channelGroup通道组
channelGroup.add(ctx.channel());
System.out.println("与客户端建立连接，通道开启！");
}
// 客户端与服务器关闭连接的时候触发
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
System.out.println("与客户端建立连接，通道关闭！");
channelGroup.remove(ctx.channel());
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
String message = msg.text() + " --- 你好，" + ctx.channel().localAddress() + " 给固定的人发消息";
ctx.channel().writeAndFlush(new TextWebSocketFrame(message));
//群发消息
message = "我是服务器，这里发送的是群消息";
channelGroup.writeAndFlush(new TextWebSocketFrame(message));
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx,Throwable cause) throws Exception{
ctx.close();
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("netty")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
26. Springboot中集成WebSocket(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
</dependencies>
(2) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;
@Configuration
public class Configure {
@Bean
public ServerEndpointExporter serverEndpointExporter() {
return new ServerEndpointExporter();
}
}
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.util.concurrent.ConcurrentHashMap;
import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import org.springframework.stereotype.Component;
@ServerEndpoint("/websocket/{userId}")
@Component
public class controller {
private static ConcurrentHashMap<String,Session> webSocketMap = new ConcurrentHashMap<>();
@OnOpen
public void onOpen(Session session,@PathParam("userId") String userId){
System.out.println(userId);
System.out.println("websocket打开");
}
@OnMessage
public void onMessage(String message,Session session){
System.out.println("接收：" + message);
try{
session.getBasicRemote().sendText("字符串");
}
catch(Exception e){
}
}
@OnError
public void onError(Session session,Throwable error){
error.printStackTrace();
}
@OnClose
public void onClose(Session session){
System.out.print("关闭");
}
}
注：
Websocket访问地址ws://127.0.0.1:8310/websocket/<id值>
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
27. Springboot中集成线程池(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
</dependencies>
(2) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import java.util.concurrent.ThreadPoolExecutor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.TaskExecutor;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
@Configuration
@EnableAsync
public class Configure {
@Bean
public TaskExecutor taskExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
// 设置核心线程数
executor.setCorePoolSize(5);
// 设置最大线程数
executor.setMaxPoolSize(10);
// 设置队列容量
executor.setQueueCapacity(20);
// 设置线程活跃时间（秒）
executor.setKeepAliveSeconds(60);
// 设置默认线程名称
executor.setThreadNamePrefix("hello-");
// 设置拒绝策略
executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
// 等待所有任务结束后再关闭线程池
executor.setWaitForTasksToCompleteOnShutdown(true);
return executor;
}
}
(3) 创建service包，并创建UserService.java文件
UserService.java文件中内容：
import org.springframework.stereotype.Component;
@Component
public interface UserService {
String sayHello();
}
(4) 在service包中创建UserServiceImpl.java文件
UserServiceImpl.java文件中内容：
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;
@Component
public class UserServiceImpl implements UserService {
@Async
public String sayHello() {
LoggerFactory.getLogger(UserServiceImpl.class).info( ":Hello World!");
return "hello";
}
}
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import service.*;
@RestController
public class controller {
@Autowired
private UserService userService;
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return userService.sayHello();
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,service,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
28. Springboot中集成Sentinel降级和限流
1.自定义异常回复
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.cloud.sentinel.transport.dashboard=localhost:8080
spring.cloud.sentinel.transport.eager= true
注：
Sentinel采用延迟加载，只有在主动发起一次请求后，才会被拦截并发送给服务端。如果想关闭这个延迟，需将eager设置为true
(3) 创建Configure包，并创建ResponseData.java文件
ResponseData.java文件中内容：
public class ResponseData {
private int code;
private String message;
public ResponseData(int code, String message) {
this.code = code;
this.message = message;
}
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
(4) 在Configure包中创建SentinelException.java文件
SentinelException.java文件中内容：
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import com.alibaba.csp.sentinel.adapter.spring.webmvc.callback.BlockExceptionHandler;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.alibaba.csp.sentinel.slots.block.authority.AuthorityException;
import com.alibaba.csp.sentinel.slots.block.degrade.DegradeException;
import com.alibaba.csp.sentinel.slots.block.flow.FlowException;
import com.alibaba.csp.sentinel.slots.block.flow.param.ParamFlowException;
import com.alibaba.csp.sentinel.slots.system.SystemBlockException;
import com.alibaba.fastjson.JSON;
@Component
public class SentinelException implements BlockExceptionHandler {
@Override
public void handle(HttpServletRequest request, HttpServletResponse response, BlockException e) throws Exception {
response.setContentType("application/json;charset=utf-8");
ResponseData data = null;
if (e instanceof FlowException) {
data = new ResponseData(-1, "流控规则被触发......");
} else if (e instanceof DegradeException) {
data = new ResponseData(-2, "降级规则被触发...");
} else if (e instanceof AuthorityException) {
data = new ResponseData(-3, "授权规则被触发...");
} else if (e instanceof ParamFlowException) {
data = new ResponseData(-4, "热点规则被触发...");
} else if (e instanceof SystemBlockException) {
data = new ResponseData(-5, "系统规则被触发...");
}
response.getWriter().write(JSON.toJSONString(data));
}
}
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return "成功";
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
**注：**需要在
Sentinel管理界面设置相应的限流和降级过后才能触发
2.全局异常回复
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.cloud.sentinel.transport.dashboard=localhost:8080
spring.cloud.sentinel.transport.eager= true
注：
Sentinel采用延迟加载，只有在主动发起一次请求后，才会被拦截并发送给服务端。如果想关闭这个延迟，需将eager设置为true
(3) 创建Configure包，并创建ResponseData.java文件
ResponseData.java文件中内容：
public class ResponseData {
private int code;
private String message;
public ResponseData(int code, String message) {
this.code = code;
this.message = message;
}
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
(4) 在Configure包中创建ExcpetionHandler.java文件
ExcpetionHandler.java文件中内容：
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import com.alibaba.csp.sentinel.slots.block.flow.param.ParamFlowException;
@RestControllerAdvice
public class ExcpetionHandler {
@ExceptionHandler(ParamFlowException.class)
public ResponseData test() {
return new ResponseData(-4, "热点规则被触发...");
}
}
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() {
return "成功";
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
**注：**需要在
Sentinel管理界面设置相应的限流和降级过后才能触发
29. Springboot中集成Mybaits和Netty服务
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.30.Final</version>
</dependency>
<!--mybatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- druid的starter -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.9</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
netty.port=8010
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.url=jdbc:mysql://192.168.0.19:3860/test?useUnicode=true&characterEncoding=utf-8&useSSL=false
spring.datasource.username=mysql
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.druid.initial-size=5
spring.datasource.druid.min-idle=5
spring.datasource.druid.max-active=20
spring.datasource.druid.max-wait=60000
spring.datasource.druid.time-between-eviction-runs-millis= 60000
spring.datasource.druid.min-evictable-idle-time-millis= 30000
spring.datasource.druid.validation-query= SELECT 1 FROM DUAL
spring.datasource.druid.test-while-idle= true
spring.datasource.druid.test-on-borrow= true
spring.datasource.druid.test-on-return= false
spring.datasource.druid.pool-prepared-statements= true
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
mybatis.mapper-locations=classpath:mapper/*.xml
mybatis.type-aliases-package=Entity
(3) 在资源文件夹resources中创建mapper文件夹，并在mapper文件夹中创建AccountMapper.xml文件
AccountMapper.xml文件中内容：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="Dao.AccountDao">
<resultMap id="accountList" type="Entity.Account">
<result column="id" property="id"/>
<result column="name" property="name"/>
<result column="balance" property="balance"/>
</resultMap>
<select id="findAll" resultMap="accountList">
select * from tbl_account
</select>
</mapper>
(4) 创建Entity包，并创建Account.java文件
Account.java文件中内容：
import org.springframework.stereotype.Component;
@Component
public class Account {
private int id;
private String name;
private float balance;
public Account() {
}
public Account(int id, String name, float balance) {
this.id = id;
this.name = name;
this.balance = balance;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getBalance() {
return balance;
}
public void setBalance(float balance) {
this.balance = balance;
}
@Override
public String toString() {
return "Account [id=" + id + ", name=" + name + ", balance=" + balance + "]";
}
}
(5) 创建Dao包，并创建AccountDao.java文件
AccountDao.java文件中内容：
import java.util.List;
import org.springframework.stereotype.Repository;
import Entity.*;
@Repository
public interface AccountDao {
public List<Account> findAll();
}
(6) 创建netty包，并创建NettyServer.java文件
NettyServer.java文件中内容：
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import Dao.*;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
@Component
public class NettyServer {
@Value("${netty.port}")
private int nettyPort;
@Autowired
private AccountDao accountDao;
private EventLoopGroup bossGroup = new NioEventLoopGroup();
private EventLoopGroup workGroup = new NioEventLoopGroup();
/**
* 启动netty服务
* @throws InterruptedException
*/
@PostConstruct
public void start() throws InterruptedException {
ServerBootstrap b=new ServerBootstrap();
b.group(bossGroup,workGroup)
.channel(NioServerSocketChannel.class)
.option(ChannelOption.SO_BACKLOG,128)
.childHandler(new NettyChannel(accountDao));
ChannelFuture future = b.bind(nettyPort).sync();
if (future.isSuccess()) {
System.out.println("启动 Netty 成功");
}
}
/**
* 销毁
*/
@PreDestroy
public void destroy() {
bossGroup.shutdownGracefully().syncUninterruptibly();
workGroup.shutdownGracefully().syncUninterruptibly();
System.out.println("关闭 Netty 成功");
}
}
(7) 在netty包中创建NettyChannel.java文件
NettyChannel.java文件中内容：
import org.springframework.stereotype.Component;
import Dao.*;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
@Component
public class NettyChannel extends ChannelInitializer<SocketChannel>{
private AccountDao accountDao;
public NettyChannel(AccountDao accountDao) {
this.accountDao = accountDao;
}
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new NettyHandler(accountDao));
}
}
(8) 在netty包中创建NettyHandler.java文件
NettyHandler.java文件中内容：
import java.util.List;
import org.springframework.stereotype.Component;
import Dao.*;
import Entity.*;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.CharsetUtil;
@Component
public class NettyHandler extends SimpleChannelInboundHandler<ByteBuf> {
private AccountDao accountDao;
public NettyHandler(AccountDao accountDao) {
this.accountDao=accountDao;
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {
ByteBuf msg=(ByteBuf) buf;
System.out.println(msg.toString(CharsetUtil.UTF_8));
List<Account> users = accountDao.findAll();
users.forEach(user-> System.out.println(user.toString()));
}
public void exceptionCaught(ChannelHandlerContext ctx,Throwable cause) throws Exception{
cause.printStackTrace();
ctx.close();
}
}
(9) 主启动目录中内容
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@MapperScan(basePackages ="Dao")
@ComponentScan("netty")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
30. Springboot(2.4)中集成Springdata操作Mongodb(多数据源)(1)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.data.mongodb.url=mongodb://192.168.0.19:8092
spring.data.mongodb.database=test
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.mongodb.core.SimpleMongoClientDatabaseFactory;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
@Configuration
@EnableMongoRepositories(basePackages = {"Dao"})
public class Configure {
@Value("${spring.data.mongodb.url}")
private String url;
@Value("${spring.data.mongodb.database}")
private String database;
@Bean
@Primary
public SimpleMongoClientDatabaseFactory mongoDbFactory() throws Exception{
ConnectionString connectionString = new ConnectionString(url);
MongoClientSettings settings = MongoClientSettings.builder()
.applyConnectionString(connectionString)
.retryWrites(true)
.build();
MongoClient mongClient = MongoClients.create(settings);
return new SimpleMongoClientDatabaseFactory(mongClient,database);
}
}
(4) 创建Entity包，并创建User.java文件
User.java文件中内容：
import org.springframework.data.mongodb.core.mapping.Document;
@Document(collection = "user")
public class User {
private String userName;
public User(){
}
public User(String userName){
this.userName = userName;
}
public void setUserName(String userName){
this.userName = userName;
}
public String getUserName(){
return userName;
}
@Override
public String toString() {
return "User [userName=" + userName + "]";
}
}
(5) 创建Dao包，并创建userDao.java文件
userDao.java文件中内容：
import org.bson.types.ObjectId;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import Entity.*;
@Repository
public interface userDao extends MongoRepository<User,ObjectId>{
}
(6) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import Dao.*;
import Entity.*;
@CrossOrigin
@RestController
public class controller {
@Autowired
userDao userRepository;
@RequestMapping(value="/index",method = {RequestMethod.GET})
public String Index() {
User user = new User("张三");
userRepository.save(user);
return "成功";
}
}
(7) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration(exclude={MongoAutoConfiguration.class})
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
31. Springboot(2.4)中集成Springdata操作Mongodb(多数据源)(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.data.mongodb.url=mongodb://192.168.0.19:8092
spring.data.mongodb.database=test
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoClientDatabaseFactory;
import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
@Configuration
public class Configure {
@Value("${spring.data.mongodb.url}")
private String url;
@Value("${spring.data.mongodb.database}")
private String database;
@Primary
public SimpleMongoClientDatabaseFactory mongoDbFactory() throws Exception{
ConnectionString connectionString = new ConnectionString(url);
MongoClientSettings settings = MongoClientSettings.builder()
.applyConnectionString(connectionString)
.retryWrites(true)
.build();
MongoClient mongClient = MongoClients.create(settings);
return new SimpleMongoClientDatabaseFactory(mongClient,database);
}
@Bean(name = "primaryMongoTemplate")
public MongoTemplate getMongoTemplate() throws Exception {
return new MongoTemplate(mongoDbFactory());
}
}
(4) 创建Entity包，并创建User.java文件
User.java文件中内容：
import org.springframework.data.mongodb.core.mapping.Document;
@Document(collection = "user")
public class User {
private String userName;
public User(){
}
public User(String userName){
this.userName = userName;
}
public void setUserName(String userName){
this.userName = userName;
}
public String getUserName(){
return userName;
}
@Override
public String toString() {
return "User [userName=" + userName + "]";
}
}
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import javax.annotation.Resource;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import Entity.*;
@CrossOrigin
@RestController
public class controller {
@Resource(name = "primaryMongoTemplate")
private MongoTemplate mongoTemplate;
@RequestMapping(value="/index",method = {RequestMethod.GET})
public String Index() {
User user = new User("张三");
mongoTemplate.save(user);
return "成功";
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration(exclude={MongoAutoConfiguration.class})
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
32. Springboot(2.4)中集成Springdata操作Mongodb(多数据源)(3)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
first.uri=mongodb://192.168.0.19:8092
first.database=test1
first.host=192.168.0.19
first.port=8092
second.uri=mongodb://192.168.0.19:8092
second.database=test2
second.host=192.168.0.19
second.port=8092
(3) 创建firstMongo包，并创建FirstMongoProperties.java文件
FirstMongoProperties.java文件中内容：
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
@Configuration
public class FirstMongoProperties {
@Primary
@Bean(name="firstMongoProperties1")
@ConfigurationProperties(prefix="first")
public MongoProperties firstMongoProperties(){
return new MongoProperties();
}
}
(4) 在firstMongo创建FirstMongoTemplate.java文件
FirstMongoTemplate.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoClientDatabaseFactory;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
@Configuration
@EnableMongoRepositories(basePackages="firstDao",mongoTemplateRef="firstMongo")
public class FirstMongoTemplate {
@Autowired
@Qualifier("firstMongoProperties1")
private MongoProperties mongoProperties;
@Primary
@Bean
public SimpleMongoClientDatabaseFactory firstFactory(MongoProperties mongo) throws Exception{
ConnectionString connectionString = new ConnectionString(mongo.getUri());
MongoClientSettings settings = MongoClientSettings.builder()
.applyConnectionString(connectionString)
.retryWrites(true)
.build();
MongoClient mongClient = MongoClients.create(settings);
return new SimpleMongoClientDatabaseFactory(mongClient,mongo.getDatabase());
}
@Primary
@Bean(name="firstMongo")
public MongoTemplate firstMongoTemplate() throws Exception {
return new MongoTemplate(firstFactory(this.mongoProperties));
}
}
(5) 创建secondMongo包，并创建SecondMongoProperties.java文件
SecondMongoProperties.java文件中内容：
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class SecondMongoProperties {
@Bean(name="secondMongoProperties2")
@ConfigurationProperties(prefix="second")
public MongoProperties firstMongoProperties(){
return new MongoProperties();
}
}
(6) 在secondMongo创建SecondMongoTemplate.java文件
SecondMongoTemplate.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoClientDatabaseFactory;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
@Configuration
@EnableMongoRepositories(basePackages="secondDao",mongoTemplateRef="secondMongo")
public class SecondMongoTemplate {
@Autowired
@Qualifier("secondMongoProperties2")
private MongoProperties mongoProperties;
@Bean
public SimpleMongoClientDatabaseFactory secondFactory(MongoProperties mongo) throws Exception{
ConnectionString connectionString = new ConnectionString(mongo.getUri());
MongoClientSettings settings = MongoClientSettings.builder()
.applyConnectionString(connectionString)
.retryWrites(true)
.build();
MongoClient mongClient = MongoClients.create(settings);
return new SimpleMongoClientDatabaseFactory(mongClient,mongo.getDatabase());
}
@Bean(name="secondMongo")
public MongoTemplate firstMongoTemplate() throws Exception {
return new MongoTemplate(secondFactory(this.mongoProperties));
}
}
(7) 创建Entity包，并创建User.java文件
User.java文件中内容：
import org.springframework.data.mongodb.core.mapping.Document;
@Document(collection = "user")
public class User {
private String userName;
public User(){
}
public User(String userName){
this.userName = userName;
}
public void setUserName(String userName){
this.userName = userName;
}
public String getUserName(){
return userName;
}
@Override
public String toString() {
return "User [userName=" + userName + "]";
}
}
(8) 创建firstDao包，并创建FirstUserDao.java文件
FirstUserDao.java文件中内容：
import org.bson.types.ObjectId;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import Entity.*;
@Repository
public interface FirstUserDao extends MongoRepository<User,ObjectId> {
User findByUserName(String userName);
}
(9) 创建secondDao包，并创建SecondUserDao.java文件
SecondUserDao.java文件中内容：
import org.bson.types.ObjectId;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import Entity.*;
@Repository
public interface SecondUserDao extends MongoRepository<User,ObjectId> {
User findByUserName(String userName);
}
(10) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import Entity.*;
import firstDao.*;
import secondDao.*;
@CrossOrigin
@RestController
public class controller {
@Autowired
FirstUserDao firstRepository;
@Autowired
SecondUserDao secondRepository;
@RequestMapping(value="/first",method = {RequestMethod.GET})
public String First() {
User user = new User("张三");
firstRepository.save(user);
return "成功";
}
@RequestMapping(value="/second",method = {RequestMethod.GET})
public String Second() {
User user = new User("张三");
secondRepository.save(user);
return "成功";
}
}
(11) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration(exclude={MongoAutoConfiguration.class})
@ComponentScan("firstMongo,secondMongo,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
33. Springboot(2.0)集成mybaits开启Ecache二级缓存(1)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<!-- Spring Boot Mybatis 依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
</dependency>
</dependencies>
(2) 主启动目录创建资源文件夹resources文件夹，并创建application.properties文件
application.properties中内容：
server.port=8310
spring.mysql.url=jdbc:mysql://Ip地址:端口/数据库名称?serverTimezone=UTC&useSSL=false
spring.mysql.username=用户名
spring.mysql.password=密码
spring.mysql.driver-class=com.mysql.jdbc.Driver
(3) 在resources文件夹中，创建maper文件夹并创建personMapper.xml文件
personMapper.xml中内容：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="Dao.PersonDao">
<resultMap id="BaseTreeResultMap" type="Entity.Person">
<result column="id" property="id"/>
<result column="parent_id" property="parentId"/>
<result column="name" property="name"/>
<collection column="id" property="child" javaType="java.util.ArrayList"
ofType="Entity.Person" select="getNextPersonTree"/>
</resultMap>
<resultMap id="NextTreeResultMap" type="Entity.Person">
<result column="id" property="id"/>
<result column="name" property="name"/>
<result column="parent_id" property="parentId"/>
<collection column="id" property="child" javaType="java.util.ArrayList"
ofType="Entity.Person" select="getNextPersonTree"/>
</resultMap>
<sql id="Base_Column_List">id, name,parent_id</sql>
<select id="getNextPersonTree" resultMap="NextTreeResultMap">
SELECT id,name FROM person WHERE parent_id = #{id}
</select>
<select id="getNodeTree" resultMap="BaseTreeResultMap">
SELECT
<include refid="Base_Column_List"/>
FROM person
WHERE parent_id = 23
</select>
</mapper>
(4) 创建Configure包，并创建Congifure.java文件
Configure.java中内容：
import javax.sql.DataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import com.alibaba.druid.pool.DruidDataSource;
@Configuration
@MapperScan(basePackages ="Dao")
public class Configure {
@Value("${spring.mysql.url}")
private String url;
@Value("${spring.mysql.username}")
private String username;
@Value("${spring.mysql.password}")
private String password;
@Value("${spring.mysql.driver-class}")
private String driverName;
@Bean
@Primary
public DataSource basicDataSource() throws Exception {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
dataSource.setDriverClassName(driverName);
//连接池配置
dataSource.setMaxActive(3000);
dataSource.setMinIdle(5);
dataSource.setInitialSize(5);
dataSource.setMaxWait(60000);
dataSource.setTimeBetweenEvictionRunsMillis(60000);
dataSource.setMinEvictableIdleTimeMillis(300000);
dataSource.setTestWhileIdle(true);
dataSource.setTestOnBorrow(true);
dataSource.setTestOnReturn(true);
dataSource.setValidationQuery("SELECT 'x'");
dataSource.setPoolPreparedStatements(true);
dataSource.setMaxPoolPreparedStatementPerConnectionSize(20);
return dataSource;
}
@Bean(name = "testSqlSessionFactory")
public SqlSessionFactory testSqlSessionFactory() throws Exception {
SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
factoryBean.setDataSource(basicDataSource());
PathMatchingResourcePatternResolver pathMatch = new PathMatchingResourcePatternResolver();
factoryBean.setMapperLocations(pathMatch.getResources("classpath:mapper/*.xml"));
return factoryBean.getObject();
}
@Bean(name = "testSqlSessionTemplate")
public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("testSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
return new SqlSessionTemplate(sqlSessionFactory);
}
}
(5) 在Configure包中创建MyEhcacheConfig.java文件
MyEhcacheConfig.java中内容：
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.ehcache.EhCacheCacheManager;
import org.springframework.cache.ehcache.EhCacheManagerFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
@Configuration
@EnableCaching
public class MyEhcacheConfig {
@Bean
public EhCacheCacheManager ehCacheCacheManager(EhCacheManagerFactoryBean bean) {
return new EhCacheCacheManager(bean.getObject());
}
/**
* 据shared与否的设置,
* Spring分别通过CacheManager.create()
* 或new CacheManager()方式来创建一个ehcache基地.
* 也说是说通过这个来设置cache的基地是这里的Spring独用,还是跟别的(如hibernate的Ehcache共享)
*
* @return
*/
@Bean
public EhCacheManagerFactoryBean ehCacheManagerFactoryBean() {
EhCacheManagerFactoryBean cacheManagerFactoryBean = new EhCacheManagerFactoryBean();
cacheManagerFactoryBean.setConfigLocation(new ClassPathResource("ehcache.xml"));
cacheManagerFactoryBean.setShared(true);
return cacheManagerFactoryBean;
}
}
(6) 创建Entity包,并创建Person.java文件
Person.java中内容：
package Entity;
import java.io.Serializable;
import java.util.List;
public class Person implements Serializable{
private static final long serialVersionUID = 1L;
private int id;
private int parentId;
private String name;
//子节点
private List<Person> child;
public Person() {
}
public Person(int id, int parentId, String name, List<Person> child) {
this.id = id;
this.parentId = parentId;
this.name = name;
this.child = child;
}
public void setId(int id) {
this.id = id;
}
public int getId() {
return id;
}
public void setParentId(int parentId) {
this.parentId = parentId;
}
public int getParentId() {
return parentId;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setChild(List<Person> child) {
this.child = child;
}
public List<Person> getChild() {
return child;
}
}
(7) 创建Dao包,并创建PersonDao.java文件
PersonDao.java中内容：
import java.util.List;
import org.apache.ibatis.annotations.CacheNamespace;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import Entity.*;
//分布式环境下必然会出现脏数据；
//多表联合查询的情况下极大可能会出现脏数据；
@Mapper
//整个类开启缓存
//@CacheNamespace
public interface PersonDao {
@Select("select * from person where id = #{id}")
Person getPerson(int id);
//查询所有节点
List<Person> getNodeTree();
//查询节点
List<Person> getNextPersonTree(int parentId);
}
(8) 创建controller包,并创建controller.java文件
controller.java中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import Dao.*;
import domain.ResultJson;
@CrossOrigin
@Controller
public class controller {
@Autowired
private PersonDao personDao;
@Cacheable(key="'user_'+#uid",value="userCache")
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public Person Index() throws Exception {
return personDao.getPerson(1);
}
}
(9) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
// TODO Auto-generated method stub
SpringApplication.run(Start.class, args);
}
}
34. Springboot集成Kaptcha图形验证码
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.github.penggle</groupId>
<artifactId>kaptcha</artifactId>
<version>2.3.2</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
kaptcha.border=yes
kaptcha.border.color=105,179,90
kaptcha.textproducer.font.color=blue
kaptcha.textproducer.font.size=30
kaptcha.textproducer.font.names=宋体
kaptcha.textproducer.char.length=4
kaptcha.image.width=120
kaptcha.image.height=40
kaptcha.session.key=code
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import java.util.Properties;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.google.code.kaptcha.impl.DefaultKaptcha;
import com.google.code.kaptcha.util.Config;
@Configuration
public class Configure {
@Value("${kaptcha.border}")
private String border;
@Value("${kaptcha.border.color}")
private String borderColor;
@Value("${kaptcha.textproducer.font.color}")
private String textproducerFontColor;
@Value("${kaptcha.textproducer.font.size}")
private String textproducerFontSize;
@Value("${kaptcha.textproducer.font.names}")
private String textproducerFontNames;
//验证码长度
@Value("${kaptcha.textproducer.char.length}")
private String textproducerCharLength;
@Value("${kaptcha.image.width}")
private String imageWidth;
@Value("${kaptcha.image.height}")
private String imageHeight;
@Value("${kaptcha.session.key}")
private String sessionKey;
@Bean
public DefaultKaptcha getDefaultKapcha(){
DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
Properties properties = new Properties();
properties.setProperty("kaptcha.border", border);
properties.setProperty("kaptcha.border.color", borderColor);
properties.setProperty("kaptcha.textproducer.font.color", textproducerFontColor);
properties.setProperty("kaptcha.textproducer.font.size", textproducerFontSize);
properties.setProperty("kaptcha.textproducer.font.names", textproducerFontNames);
properties.setProperty("kaptcha.textproducer.char.length", textproducerCharLength);
properties.setProperty("kaptcha.image.width", imageWidth);
properties.setProperty("kaptcha.image.height", imageHeight);
properties.setProperty("kaptcha.session.key", sessionKey);
Config config = new Config(properties);
defaultKaptcha.setConfig(config);
return defaultKaptcha;
}
}
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import com.google.code.kaptcha.impl.DefaultKaptcha;
@CrossOrigin
@Controller
public class controller {
/* 注入Kaptcha */
@Autowired
private DefaultKaptcha defaultKaptcha;
@GetMapping("/code")
@ResponseBody
public ModelAndView getKaptchaImage(HttpServletRequest request, HttpServletResponse response) throws Exception {
HttpSession session = request.getSession();
response.setDateHeader("Expires", 0);
// Set standard HTTP/1.1 no-cache headers.
response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
// Set IE extended HTTP/1.1 no-cache headers (use addHeader).
response.addHeader("Cache-Control", "post-check=0, pre-check=0");
// Set standard HTTP/1.0 no-cache header.
response.setHeader("Pragma", "no-cache");
// return a jpeg
response.setContentType("image/jpeg");
// create the text for the image
String capText = defaultKaptcha.createText();
//存储文字
session.setAttribute("test", capText);
// create the image with the text
BufferedImage bi = defaultKaptcha.createImage(capText);
ServletOutputStream out = response.getOutputStream();
// write the data out
ImageIO.write(bi, "jpg", out);
try {
out.flush();
} finally {
out.close();
}
return null;
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
35. Springboot(2.0)集成zookeeper分布式锁
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- zookeeper 客户端 -->
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.12.0</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
##ZooKeeper地址
zk.url = 127.0.0.1:2181
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class Configure {
@Value("${zk.url}")
private String zkUrl;
@Bean
public CuratorFramework getCuratorFramework() {
// 用于重连策略，1000毫秒是初始化的间隔时间，3代表尝试重连次数
RetryPolicy retryPolicy = new ExponentialBackoffRetry(1000, 3);
//操作zookeeper集群zkUrl路径ip:xx,ip:xx
CuratorFramework client = CuratorFrameworkFactory.newClient(zkUrl, retryPolicy);
//必须调用start开始连接ZooKeeper
client.start();
/**
* 使用Curator，可以通过LeaderSelector来实现领导选取；
* 领导选取：选出一个领导节点来负责其他节点；如果领导节点不可用，则在剩下的机器里再选出一个领导节点
*/
//构造一个监听器
/*LeaderSelectorListenerAdapter listener = new LeaderSelectorListenerAdapter() {
@Override
public void takeLeadership(CuratorFramework curatorFramework) throws Exception {
log.info("get leadership");
// 领导节点，方法结束后退出领导。zk会再次重新选择领导
}
};
LeaderSelector selector = new LeaderSelector(client, "/schedule", listener);
selector.autoRequeue();
selector.start();
*/
return client;
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.util.concurrent.TimeUnit;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.recipes.locks.InterProcessMutex;
import org.apache.curator.framework.recipes.locks.InterProcessSemaphoreMutex;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class controller {
@Autowired
private CuratorFramework zkClient;
@GetMapping("/zookeeperLock1")
public ResultJson ZookeeperLock1() throws Exception {
try {
// InterProcessMutex 构建一个分布式锁该节点会在客户端链接断开时被删除
InterProcessMutex lock = new InterProcessMutex(zkClient, "/test");
try {
//锁定5秒钟
if (lock.acquire(5, TimeUnit.HOURS)) {
// 模拟业务处理耗时5秒
Thread.sleep(5*1000);
System.out.println("处理事务");
}
} finally {
// 释放该锁
//lock.release();
}
} catch (Exception e) {
// zk异常
e.printStackTrace();
}
return "zookeeper1锁定";
}
@GetMapping("/zookeeperLock2")
public String ZookeeperLock2() throws Exception {
// 获取锁
InterProcessSemaphoreMutex balanceLock = new InterProcessSemaphoreMutex(zkClient, "/zktest");
try {
// 执行加锁操作
balanceLock.acquire();
System.out.println("执行事务");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
// 释放锁资源
balanceLock.release();
} catch (Exception e) {
e.printStackTrace();
}
}
return "zookeeper2锁定";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication
@ComponentScan("controller,Configure")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
36. Springboot(2.0)中集成Springdata操作Mysql(自动建表)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.13</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.mysql.url=jdbc:mysql://127.0.0.1:3358/test?serverTimezone=UTC&useSSL=true
spring.mysql.username=mysql
spring.mysql.password=123456
spring.mysql.driver-class=com.mysql.cj.jdbc.Driver
spring.mysql.minPoolSize = 3
spring.mysql.maxPoolSize = 25
spring.mysql.maxLifetime = 20000
spring.mysql.borrowConnectionTimeout = 30
spring.mysql.loginTimeout = 30
spring.mysql.maintenanceInterval = 60
spring.mysql.maxIdleTime = 60
#在控制台打印出SQL语句
spring.jpa.show-sql=true
#每次运行程序，没有表格会新建表格，表内有数据不会清空，只会更新
spring.jpa.hibernate.ddl-auto=update
#Hibernate生成的SQL语句为MySQL方言
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import com.alibaba.druid.pool.DruidDataSource;
@Configuration
@EnableJpaRepositories(basePackages="Dao")
@EntityScan("Entity")
public class Configure {
@Value("${spring.mysql.url}")
private String url;
@Value("${spring.mysql.username}")
private String username;
@Value("${spring.mysql.password}")
private String password;
@Value("${spring.mysql.driver-class}")
private String driverName;
@Bean
public DataSource basicDataSource() throws Exception {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
dataSource.setDriverClassName(driverName);
//连接池配置
dataSource.setMaxActive(3000);
dataSource.setMinIdle(5);
dataSource.setInitialSize(5);
dataSource.setMaxWait(60000);
dataSource.setTimeBetweenEvictionRunsMillis(60000);
dataSource.setMinEvictableIdleTimeMillis(300000);
dataSource.setTestWhileIdle(true);
dataSource.setTestOnBorrow(true);
dataSource.setTestOnReturn(true);
dataSource.setValidationQuery("SELECT 1");
dataSource.setPoolPreparedStatements(true);
dataSource.setMaxPoolPreparedStatementPerConnectionSize(20);
return dataSource;
}
}
(4) 创建Entity包，并创建Person.java文件
controller.java文件中内容：
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="person_info")
public class Person {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(name="name")
private String name;
@Column(name="age")
private int age;
@Column(name="address")
private String address;
@Column(name="create_time")
private Date createTime = new Date();
@Column(name="update_time")
private Date updateTime = new Date();
public Person() {
}
public Person(String name, int age, String address) {
this.name = name;
this.age = age;
this.address = address;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
public Date getUpdateTime() {
return updateTime;
}
public void setUpdateTime(Date updateTime) {
this.updateTime = updateTime;
}
}
(5) 创建Dao包，并创建PersonDao.java文件
PersonDao.java文件中内容：
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import Entity.*;
@Repository
public interface PersonDao extends JpaRepository<Person,Integer>{
}
(6) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import Dao.*;
import Entity.*;
@CrossOrigin
@Controller
public class controller {
@Autowired
private PersonDao personDao;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public List<Person> Index() throws Exception {
List<Person> persons = personDao.findAll();
return persons;
}
@RequestMapping(value = "/save",method = RequestMethod.GET)
@ResponseBody
public String Save() throws Exception {
List<Person> persons = new ArrayList<Person>();
Person person1 = new Person("李四",12,"广东");
Person person2 = new Person("张三",20,"广东");
persons.add(person1);
persons.add(person2);
personDao.saveAll(persons);
return "成功";
}
}
(7) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
注：
#每次运行该程序，没有表格会新建表格，表内有数据会清空 spring.jpa.hibernate.ddl-auto:create #每次程序结束的时候会清空表 spring.jpa.hibernate.ddl-auto:create-drop #每次运行程序，没有表格会新建表格，表内有数据不会清空，只会更新 spring.jpa.hibernate.ddl-auto:update #运行程序会校验数据与数据库的字段类型是否相同，不同会报错 spring.jpa.hibernate.ddl-auto:validate
37. Springboot中挂载静态资源(1)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.freemarker.request-context-attribute=request
spring.mvc.view.prefix=classpath:/templates/
spring.freemarker.suffix=.html
spring.freemarker.content-type=text/html
spring.freemarker.enabled=true
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.allow-request-override=false
spring.freemarker.expose-request-attributes=true
spring.freemarker.expose-session-attributes=true
spring.freemarker.expose-spring-macro-helpers=true
(3) 在资源文件夹resources文件夹中，创建templates文件夹，并创建index.html文件
index.html文件中内容：
<html>
<head>
<title>测试页面</title>
</head>
<body>
hello
</body>
</html>
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@CrossOrigin
@Controller
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() throws Exception {
return "index";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
(6) 访问Web页面
地址：http://127.0.0.1:8310/index
38. Springboot中挂载静态资源(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.freemarker.request-context-attribute=request
spring.mvc.view.prefix=classpath:/templates/
spring.freemarker.suffix=.html
spring.freemarker.content-type=text/html
spring.freemarker.enabled=true
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.allow-request-override=false
spring.freemarker.expose-request-attributes=true
spring.freemarker.expose-session-attributes=true
spring.freemarker.expose-spring-macro-helpers=true
(3) 创建资源文件夹static，并创建index.html文件
index.html文件中内容：
<html>
<head>
<title>测试页面</title>
</head>
<body>
hello
</body>
</html>
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@CrossOrigin
@Controller
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() throws Exception {
return "index";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
(6) 访问Web页面
地址：http://127.0.0.1:8310/index.html
39. Springboot(2.0)集成Feign传递Oauth2-Token服务
1.Eureka服务器端
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.application.name=eureka-server
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
eureka.instance.hostname = localhost
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/
spring.security.user.name=admin
spring.security.user.password=123456
(3) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
2.服务提供者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8313
spring.application.name = producer
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
eureka.client.healthcheck.enabled = true
(3) 创建Entity包，并创建User.java文件
User.java文件中内容：
public class User {
private String name;
private String address;
public User() {
}
public User(String name, String address) {
this.name = name;
this.address = address;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
(4) 创建controller包，并创建UserApi.java文件
UserApi.java文件中内容：
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import Entity.*;
@RequestMapping("user")
public interface UserApi {
@GetMapping("hello")
public String hello();
@GetMapping("findById")
public User findById(@RequestParam(value = "id")Integer id);
}
(5) 在controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.ResponseBody;
import Entity.*;
@Service
@ResponseBody
public class controller implements UserApi {
@Override
public String hello() {
System.out.println("我进来了");
return "我来了" ;
}
@Override
public User findById(Integer id) {
User user = new User();
user.setName("张三");
user.setAddress("广东");
return user;
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
@EnableEurekaClient
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
3.服务消费者
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<!--指定项目中公有的模块-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8390
spring.application.name=consumer
eureka.client.serviceUrl.defaultZone=http://admin:123456@localhost:8310/eureka/
eureka.client.healthcheck.enabled = true
(3) 创建Entity包，并创建User.java文件
User.java文件中内容：
public class User {
private String name;
private String address;
public User() {
}
public User(String name, String address) {
this.name = name;
this.address = address;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
(4) 创建service包，并创建UserApi.java文件
UserApi.java文件中内容：
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import Entity.*;
@RequestMapping("user")
@Controller
public interface UserApi {
@GetMapping("hello")
@ResponseBody
public String hello();
@GetMapping("findById")
@ResponseBody
public User findById(@RequestParam(value = "id")Integer id);
}
(5) 在service包中创建ConsumerService.java文件
ConsumerService.java文件中内容：
import org.springframework.cloud.openfeign.FeignClient;
@FeignClient(name = "producer")
public interface ConsumerService extends UserApi{
}
(6) 创建Interceptor包，并创建TokenFeignClientInterceptor.java文件
TokenFeignClientInterceptor.java文件中内容：
import javax.servlet.http.HttpServletRequest;
import org.springframework.http.HttpHeaders;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import feign.RequestInterceptor;
import feign.RequestTemplate;
@Component
public class TokenFeignClientInterceptor implements RequestInterceptor {
/**
* token放在请求头.
* @param requestTemplate 请求参数
*/
@Override
public void apply(RequestTemplate requestTemplate) {
RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes();
if (requestAttributes != null) {
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();
//添加token
requestTemplate.header(HttpHeaders.AUTHORIZATION, request.getHeader(HttpHeaders.AUTHORIZATION));
}
}
}
(7) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.net.URI;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.netflix.appinfo.InstanceInfo;
import com.netflix.appinfo.InstanceInfo.InstanceStatus;
import com.netflix.discovery.EurekaClient;
import Entity.*;
import service.*;
@Service
@RestController
public class controller {
@Autowired
DiscoveryClient discoveryClient;
@Autowired
private ConsumerService consumerService;
@Autowired
EurekaClient eurekaClient;
@Autowired
LoadBalancerClient loadBalancerClient;
@GetMapping("hello")
public String getHello() {
return consumerService.hello();
}
@GetMapping("findById")
public User findById(Integer id) {
return consumerService.findById(id);
}
@GetMapping("client1")
public void getClient() {
List<String> list = discoveryClient.getServices();
for (String str : list) {
System.out.println(str);
}
}
@GetMapping("client2")
public Object getClient2() {
return discoveryClient.getInstances("producer");
}
@GetMapping("client3")
public Object getClient3() {
@SuppressWarnings("unchecked")
List<InstanceInfo> list = eurekaClient.getInstancesById("HWL-2020:producer:8313");
InstanceInfo instanceInfo = list.get(0);
if(instanceInfo.getStatus() == InstanceStatus.UP) {
String url = "http://" + instanceInfo.getHostName() + ":" + instanceInfo.getPort() + "/user/hello" ;
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> responseEntity = restTemplate.getForEntity(url, String.class);
System.out.println(responseEntity.getBody());
}
return null;
}
@GetMapping("client4")
public Object getClient4() {
ServiceInstance serviceInstance = loadBalancerClient.choose("producer");
URI uri = serviceInstance.getUri();
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> responseEntity = restTemplate.getForEntity(uri.toString()+"/user/hello", String.class);
return responseEntity.getBody();
}
}
(8) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@EnableFeignClients("service")
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
**注：**在客户端调用提供者时头传递
Authorization信息
40. Springboot(2.0)集成数字计算验证码
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--验证码-->
<dependency>
<groupId>com.github.penggle</groupId>
<artifactId>kaptcha</artifactId>
<version>2.3.2</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.google.code.kaptcha.Producer;
@CrossOrigin
@RestController
public class controller {
@Autowired
private Producer producer;
@RequestMapping(value = "/index",method = RequestMethod.GET)
public void Index(HttpServletResponse response) throws Exception {
response.setHeader("Cache-Control", "no-store, no-cache");
response.setContentType("image/jpeg");
//生成文字验证码
String text = producer.createText();
//个位数字相加
String s1 = text.substring(0, 1);
String s2 = text.substring(1, 2);
int count = Integer.valueOf(s1).intValue() + Integer.valueOf(s2).intValue();
//生成图片验证码
BufferedImage image = producer.createImage(s1 + "+" + s2 + "=?");
//保存 redis key 自己设置
//stringRedisTemplate.opsForValue().set("",String.valueOf(count));
ServletOutputStream out = response.getOutputStream();
ImageIO.write(image, "jpg", out);
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
41. Springboot(2.0)中文件上传和下载(1)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port = 8310
spring.servlet.multipart.max-file-size=100
spring.servlet.multipart.max-request-size=100
(3) 创建Configure包，并创建Configure.java文件
Configure.java文件中内容：
import javax.servlet.MultipartConfigElement;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.unit.DataSize;
@Configuration
public class Configure {
@Value("${spring.servlet.multipart.max-request-size}")
private Long maxRequestSize;
@Value("${spring.servlet.multipart.max-file-size}")
private Long maxFileSize;
@Bean
public MultipartConfigElement multipartConfigElement() {
MultipartConfigFactory factory = new MultipartConfigFactory();
// 置文件大小限制 ,超出此大小页面会抛出异常信息
factory.setMaxRequestSize(DataSize.ofMegabytes(maxRequestSize)); //KB,MB
// 设置总上传数据总大小
factory.setMaxRequestSize(DataSize.ofMegabytes(maxFileSize));
// 设置文件临时文件夹路径
// factory.setLocation("E://test//");
// 如果文件大于这个值，将以文件的形式存储，如果小于这个值文件将存储在内存中，默认为0
// factory.setMaxRequestSize(0);
return factory.createMultipartConfig();
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.crypto.hash.SimpleHash;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.ByteSource;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.*;
@RestController
public class Controller {
private static String s = System.getProperty("user.dir");
@PostMapping("/upload")
public String upload(@RequestParam(value = "file", required = false) MultipartFile file) {
if (file.isEmpty()) {
return "上传失败，请选择文件";
}
String fileName = file.getOriginalFilename();
String filePath = s+"/temp/";
File dest = new File(filePath + fileName);
File filefoder = new File(filePath);
if(!filefoder.exists()) {
filefoder.mkdirs();
}
try {
file.transferTo(dest);
return "上传成功";
} catch (IOException e) {
}
return "上传失败！";
}
@PostMapping("/multiUpload")
public String multiUpload(HttpServletRequest request) {
List<MultipartFile> files = ((MultipartHttpServletRequest) request).getFiles("file");
String filePath = s+"/temp/";
File filefoder = new File(filePath);
if(!filefoder.exists()) {
filefoder.mkdirs();
}
for (int i = 0; i < files.size(); i++) {
MultipartFile file = files.get(i);
if (file.isEmpty()) {
return "上传第" + (i++) + "个文件失败";
}
String fileName = file.getOriginalFilename();
File dest = new File(filePath + fileName);
try {
file.transferTo(dest);
} catch (IOException e) {
return "上传第" + (i++) + "个文件失败";
}
}
return "上传成功";
}
//文件下载相关代码
@RequestMapping("/download")
public void downloadFile(HttpServletRequest request, HttpServletResponse response) {
String fileName = "zookeeper-3.4.13.tar.gz";// 设置文件名，根据业务需要替换成要下载的文件名
System.out.println(request.getParameter("filename"));
if (fileName != null) {
//设置文件路径
String filePath = s+"/temp/";
File file = new File(filePath , fileName);
if (file.exists()) {
response.setContentType("application/force-download");// 设置强制下载不打开
response.addHeader("Content-Disposition", "attachment;fileName=" + fileName);// 设置文件名
byte[] buffer = new byte[1024];
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(file);
bis = new BufferedInputStream(fis);
OutputStream os = response.getOutputStream();
int i = bis.read(buffer);
while (i != -1) {
os.write(buffer, 0, i);
i = bis.read(buffer);
}
}
catch (Exception e) {
if (bis != null) {
try {
bis.close();
} catch (IOException ex) {
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException ex) {
e.printStackTrace();
}
}
}
}
}
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args){
SpringApplication.run(Start.class,args);
}
}
42. Springboot(2.0)中文件上传和下载(2)
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port = 8310
spring.servlet.multipart.max-file-size=1024MB
spring.servlet.multipart.max-request-size=1024MB
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.crypto.hash.SimpleHash;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.ByteSource;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.*;
@RestController
public class Controller {
private static String s = System.getProperty("user.dir");
@PostMapping("/upload")
public String upload(@RequestParam(value = "file", required = false) MultipartFile file) {
if (file.isEmpty()) {
return "上传失败，请选择文件";
}
String fileName = file.getOriginalFilename();
String filePath = s+"/temp/";
File dest = new File(filePath + fileName);
File filefoder = new File(filePath);
if(!filefoder.exists()) {
filefoder.mkdirs();
}
try {
file.transferTo(dest);
return "上传成功";
} catch (IOException e) {
}
return "上传失败！";
}
@PostMapping("/multiUpload")
public String multiUpload(HttpServletRequest request) {
List<MultipartFile> files = ((MultipartHttpServletRequest) request).getFiles("file");
String filePath = s+"/temp/";
File filefoder = new File(filePath);
if(!filefoder.exists()) {
filefoder.mkdirs();
}
for (int i = 0; i < files.size(); i++) {
MultipartFile file = files.get(i);
if (file.isEmpty()) {
return "上传第" + (i++) + "个文件失败";
}
String fileName = file.getOriginalFilename();
File dest = new File(filePath + fileName);
try {
file.transferTo(dest);
} catch (IOException e) {
return "上传第" + (i++) + "个文件失败";
}
}
return "上传成功";
}
//文件下载相关代码
@RequestMapping("/download")
public void downloadFile(HttpServletRequest request, HttpServletResponse response) {
String fileName = "zookeeper-3.4.13.tar.gz";// 设置文件名，根据业务需要替换成要下载的文件名
System.out.println(request.getParameter("filename"));
if (fileName != null) {
//设置文件路径
String filePath = s+"/temp/";
File file = new File(filePath , fileName);
if (file.exists()) {
response.setContentType("application/force-download");// 设置强制下载不打开
response.addHeader("Content-Disposition", "attachment;fileName=" + fileName);// 设置文件名
byte[] buffer = new byte[1024];
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(file);
bis = new BufferedInputStream(fis);
OutputStream os = response.getOutputStream();
int i = bis.read(buffer);
while (i != -1) {
os.write(buffer, 0, i);
i = bis.read(buffer);
}
}
catch (Exception e) {
if (bis != null) {
try {
bis.close();
} catch (IOException ex) {
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException ex) {
e.printStackTrace();
}
}
}
}
}
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args){
SpringApplication.run(Start.class,args);
}
}
43. Springboot(2.0)中限制文件大小
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port = 8310
spring.servlet.multipart.max-file-size=1024MB
spring.servlet.multipart.max-request-size=1024MB
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.UUID;
import javax.imageio.ImageIO;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.POST)
public String Index(@RequestParam("file") MultipartFile file) throws Exception {
if(file.isEmpty()) {
return "选择图片";
}
//检查文件大小
if(file.getSize() > 1*1024*1024) {
return "请上传1M以内的图片";
}
//检查是否是图片
BufferedImage bi = ImageIO.read(file.getInputStream());
if(bi == null){
return "上传的文件不是图片";
}
String originalFilename = file.getOriginalFilename();
String fileType = null;
if(originalFilename.contains(".")) {
fileType = originalFilename.substring(originalFilename.lastIndexOf("."));
} else {
fileType = ".jpg";
}
String filePath = "D://test//"; // 上传后的路径
String fileName = UUID.randomUUID() + fileType; // 新文件名
File dest = new File(filePath + fileName);
if (!dest.getParentFile().exists()) {
dest.getParentFile().mkdirs();
}
try {
file.transferTo(dest);
} catch (IOException e) {
e.printStackTrace();
}
return "成功";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
44. Springboot(2.0)中检测上传文件名
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources，并创建application.properties文件
application.properties文件中内容：
server.port = 8310
spring.servlet.multipart.max-file-size=1024MB
spring.servlet.multipart.max-request-size=1024MB
(3) 创建Utils包，并创建FileTypeUtils.java文件
FileTypeUtils.java文件中内容：
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
public class FileTypeUtils {
// 默认判断文件头前三个字节内容
public static int default_check_length = 3;
final static HashMap<String, String> fileTypeMap = new HashMap<>();
// 初始化文件头类型，不够的自行补充
static {
fileTypeMap.put("ffd8ffe000104a464946", "jpg"); //JPEG (jpg)
fileTypeMap.put("89504e470d0a1a0a0000", "png"); //PNG (png)
fileTypeMap.put("47494638396126026f01", "gif"); //GIF (gif)
fileTypeMap.put("49492a00227105008037", "tif"); //TIFF (tif)
fileTypeMap.put("424d228c010000000000", "bmp"); //16色位图(bmp)
fileTypeMap.put("424d8240090000000000", "bmp"); //24位位图(bmp)
fileTypeMap.put("424d8e1b030000000000", "bmp"); //256色位图(bmp)
fileTypeMap.put("41433130313500000000", "dwg"); //CAD (dwg)
fileTypeMap.put("3c21444f435459504520", "html"); //HTML (html)
fileTypeMap.put("3c21646f637479706520", "htm"); //HTM (htm)
fileTypeMap.put("48544d4c207b0d0a0942", "css"); //css
fileTypeMap.put("696b2e71623d696b2e71", "js"); //js
fileTypeMap.put("7b5c727466315c616e73", "rtf"); //Rich Text Format (rtf)
fileTypeMap.put("38425053000100000000", "psd"); //Photoshop (psd)
fileTypeMap.put("46726f6d3a203d3f6762", "eml"); //Email [Outlook Express 6] (eml)
fileTypeMap.put("d0cf11e0a1b11ae10000", "doc"); //MS Excel 注意：word、msi 和 excel的文件头一样
fileTypeMap.put("d0cf11e0a1b11ae10000", "vsd"); //Visio 绘图
fileTypeMap.put("5374616E64617264204A", "mdb"); //MS Access (mdb)
fileTypeMap.put("252150532D41646F6265", "ps");
fileTypeMap.put("255044462d312e350d0a", "pdf"); //Adobe Acrobat (pdf)
fileTypeMap.put("2e524d46000000120001", "rmvb"); //rmvb/rm相同
fileTypeMap.put("464c5601050000000900", "flv"); //flv与f4v相同
fileTypeMap.put("00000020667479706d70", "mp4");
fileTypeMap.put("49443303000000002176", "mp3");
fileTypeMap.put("000001ba210001000180", "mpg"); //
fileTypeMap.put("3026b2758e66cf11a6d9", "wmv"); //wmv与asf相同
fileTypeMap.put("52494646e27807005741", "wav"); //Wave (wav)
fileTypeMap.put("52494646d07d60074156", "avi");
fileTypeMap.put("4d546864000000060001", "mid"); //MIDI (mid)
fileTypeMap.put("504b0304140000000800", "zip");
fileTypeMap.put("526172211a0700cf9073", "rar");
fileTypeMap.put("235468697320636f6e66", "ini");
fileTypeMap.put("504b03040a0000000000", "jar");
fileTypeMap.put("4d5a9000030000000400", "exe");//可执行文件
fileTypeMap.put("3c25402070616765206c", "jsp");//jsp文件
fileTypeMap.put("4d616e69666573742d56", "mf");//MF文件
fileTypeMap.put("3c3f786d6c2076657273", "xml");//xml文件
fileTypeMap.put("494e5345525420494e54", "sql");//xml文件
fileTypeMap.put("7061636b616765207765", "java");//java文件
fileTypeMap.put("406563686f206f66660d", "bat");//bat文件
fileTypeMap.put("1f8b0800000000000000", "gz");//gz文件
fileTypeMap.put("6c6f67346a2e726f6f74", "properties");//bat文件
fileTypeMap.put("cafebabe0000002e0041", "class");//bat文件
fileTypeMap.put("49545346030000006000", "chm");//bat文件
fileTypeMap.put("04000000010000001300", "mxp");//bat文件
fileTypeMap.put("504b0304140006000800", "docx");//docx文件
fileTypeMap.put("d0cf11e0a1b11ae10000", "wps");//WPS文字wps、表格et、演示dps都是一样的
fileTypeMap.put("6431303a637265617465", "torrent");
fileTypeMap.put("6D6F6F76", "mov"); //Quicktime (mov)
fileTypeMap.put("FF575043", "wpd"); //WordPerfect (wpd)
fileTypeMap.put("CFAD12FEC5FD746F", "dbx"); //Outlook Express (dbx)
fileTypeMap.put("2142444E", "pst"); //Outlook (pst)
fileTypeMap.put("AC9EBD8F", "qdf"); //Quicken (qdf)
fileTypeMap.put("E3828596", "pwl"); //Windows Password (pwl)
fileTypeMap.put("2E7261FD", "ram"); //Real Audio (ram)
}
/**
* @param fileName
* @return String
* @description 通过文件后缀名获取文件类型
*/
public static String getFileTypeBySuffix(String fileName) {
return fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length());
}
/**
* @param inputStream
* @return String
* @description 通过文件头魔数获取文件类型
*/
public static String getFileTypeByMagicNumber(InputStream inputStream) {
byte[] bytes = new byte[default_check_length];
try {
// 获取文件头前三位魔数的二进制
inputStream.read(bytes, 0, bytes.length);
// 文件头前三位魔数二进制转为16进制
String code = bytesToHexString(bytes);
for (Map.Entry<String, String> item : fileTypeMap.entrySet()) {
if (code.startsWith(item.getKey()) || item.getKey().startsWith(code)) {
return item.getValue();
}
}
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
public static String bytesToHexString(byte[] bytes) {
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
int v = bytes[i] & 0xFF;
String hv = Integer.toHexString(v);
if (hv.length() < 2) {
stringBuilder.append(0);
}
stringBuilder.append(hv);
}
return stringBuilder.toString();
}
}
(4) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.io.File;
import java.io.IOException;
import java.util.UUID;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import Utils.FileTypeUtils;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.POST)
public String Index(@RequestParam("file") MultipartFile file) throws Exception {
String type = FileTypeUtils.getFileTypeByMagicNumber(file.getInputStream());
System.out.println(type);
String originalFilename = file.getOriginalFilename();
String fileType = null;
if(originalFilename.contains(".")) {
fileType = originalFilename.substring(originalFilename.lastIndexOf("."));
} else {
fileType = ".jpg";
}
String filePath = "D://test//"; // 上传后的路径
String fileName = UUID.randomUUID() + fileType; // 新文件名
File dest = new File(filePath + fileName);
if (!dest.getParentFile().exists()) {
dest.getParentFile().mkdirs();
}
try {
file.transferTo(dest);
} catch (IOException e) {
e.printStackTrace();
}
return "成功";
}
}
(5) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
45. Springboot集成Zipkin分布式监控
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
#服务追踪
spring.zipkin.service.name=zipkin-test
spring.zipkin.base-url=http://127.0.0.1:9411/
spring.zipkin.discovery-client-enabled=true
spring.zipkin.sender.type=web
spring.sleuth.sampler.probability=1
(3) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index1() throws Exception {
return "成功";
}
}
(4) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
46. Springboot集成Came-Ftp文件定时同步
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.22.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-ftp</artifactId>
<version>2.22.1</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
ftp.img.url=ftp://192.168.1.6:21/disk/D?username=root&password=123456
ftp.img.dir=file:D:/test/img
ftp.file.url=ftp://192.168.1.7:21/disk/D?username=root&password=123456
ftp.file.dir=file:D:/test/file
#后台进程
camel.springboot.main-run-controller=true
(3) 创建Configure包，并创建FtpRouteBuilder.java文件
FtpRouteBuilder.java文件中内容：
import org.apache.camel.LoggingLevel;
import org.apache.camel.builder.RouteBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
public class FtpRouteBuilder extends RouteBuilder {
private static Logger logger = LoggerFactory.getLogger(FtpRouteBuilder.class );
@Value("${ftp.img.url}")
private String sftpServerImg;
@Value("${ftp.img.dir}")
private String downloadLocationImg;
@Value("${ftp.file.url}")
private String sftpServerFile;
@Value("${ftp.file.dir}")
private String downloadLocationFile;
@Autowired
private DataProcessor dataProcessor;
@Override
public void configure() throws Exception {
// from 内为 URL
from(sftpServerImg)
// 本地路径
.to(downloadLocationImg)
// 数据处理器
.process(dataProcessor)
.log(LoggingLevel.INFO, logger, "Download img ${file:name} complete.");
from(sftpServerFile)
.to(downloadLocationFile)
.log(LoggingLevel.INFO, logger, "Download file ${file:name} complete.");
}
}
(4) 在Configure包中创建ImgFilter.java文件
ImgFilter.java文件中内容：
import org.apache.camel.component.file.GenericFile;
import org.apache.camel.component.file.GenericFileFilter;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
public class ImgFilter implements GenericFileFilter<Object> {
@Value("${ftp.img.dir}")
private String fileDir;
@Override
public boolean accept(GenericFile<Object> genericFile) {
return genericFile.getFileName().endsWith(".jpg") || genericFile.isDirectory();
}
}
(5) 在Configure包中创建fileFilter.java文件
fileFilter.java文件中内容：
import org.apache.camel.component.file.GenericFile;
import org.apache.camel.component.file.GenericFileFilter;
public class fileFilter implements GenericFileFilter {
@Override
public boolean accept(GenericFile file) {
return file.getFileName().endsWith(".zip") || file.isDirectory();
}
}
(6) 在Configure包中创建DataProcessor.java文件
DataProcessor.java文件中内容：
import java.io.RandomAccessFile;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.component.file.GenericFileMessage;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
public class DataProcessor implements Processor {
@Value("${ftp.img.dir}")
private String fileDir;
@SuppressWarnings("unchecked")
@Override
public void process(Exchange exchange) throws Exception {
try {
GenericFileMessage<RandomAccessFile> inMsg = (GenericFileMessage<RandomAccessFile>) exchange.getIn();
String fileName = inMsg.getGenericFile().getFileName();
System.out.println(fileName);
String sql = "insert into file(filename) values (?)";
} catch (Exception e) {
e.printStackTrace();
}
}
}
(7) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@CrossOrigin
@Controller
public class controller {
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public String Index() throws Exception {
return "成功";
}
}
(8) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
47. Springboot集成JustAuth第三方登录
支持Github、Gitee、微博、钉钉、百度、Coding、腾讯云开发者平台、OSChina、支付宝、QQ、微信、淘宝、Google、Facebook、抖音、领英、小米、微软、今日头条、Teambition、StackOverflow、Pinterest、人人、华为、企业微信、酷家乐、Gitlab、美团、饿了么和推特等第三方平台的授权登录还在继续扩展。
配置示例：
justauth.enabled=true
justauth.type.github.client-id=101d*************8b3a
justauth.type.github.client-secret=58e*************************5edd
justauth.type.github.redirect-uri=http://127.0.0.1/demo/oauth/github/callback
justauth.type.qq.client-id=10******85
justauth.type.qq.client-secret=1f7d************************d629e
justauth.type.qq.redirect-uri=http://127.0.0.1/demo/oauth/qq/callback
justauth.type.wechat.client-id=wxdcb******4ff4
justauth.type.wechat.client-secret=b4e9dc************************a08ed6d
justauth.type.wechat.redirect-uri=http://127.0.0.1/demo/oauth/wechat/callback
justauth.type.google.client-id=716******17-6db******vh******ttj320i******userco******t.com
justauth.type.google.client-secret=9IBorn************7-E
justauth.type.google.redirect-uri=http://127.0.0.1/demo/oauth/google/callback
justauth.type.microsoft.client-id=7bdce8******************e194ad76c1b
justauth.type.microsoft.client-secret=Iu0zZ4************************tl9PWan_.
justauth.type.microsoft.redirect-uri=https://127.0.0.1/demo/oauth/microsoft/callback
justauth.type.mi.client-id=288************2994
justauth.type.mi.client-secret=nFeTt89************************==
justauth.type.mi.redirect-uri=http://127.0.0.1/demo/oauth/mi/callback
justauth.type.wechat_enterprise.client-id=ww58******f3************fbc
justauth.type.wechat_enterprise.client-secret=8G6PCr00j************************rgk************AyzaPc78
justauth.type.wechat_enterprise.redirect-uri=http://127.0.0.1/demo/oauth/wechat_enterprise/callback
justauth.type.wechat_enterprise.agent-id=1*******2
(1) 在Mysql中创建相应表
DROP TABLE IF EXISTS `justauth`.`t_ja_user`;
CREATE TABLE `justauth`.`t_ja_user` (
`uuid` varchar(64) NOT NULL COMMENT '用户第三方系统的唯一id',
`username` varchar(100) DEFAULT NULL COMMENT '用户名',
`nickname` varchar(100) DEFAULT NULL COMMENT '用户昵称',
`avatar` varchar(255) DEFAULT NULL COMMENT '用户头像',
`blog` varchar(255) DEFAULT NULL COMMENT '用户网址',
`company` varchar(50) DEFAULT NULL COMMENT '所在公司',
`location` varchar(255) DEFAULT NULL COMMENT '位置',
`email` varchar(50) DEFAULT NULL COMMENT '用户邮箱',
`gender` varchar(10) DEFAULT NULL COMMENT '性别',
`remark` varchar(500) DEFAULT NULL COMMENT '用户备注（各平台中的用户个人介绍）',
`source` varchar(20) DEFAULT NULL COMMENT '用户来源',
PRIMARY KEY (`uuid`)
);
(2) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.xkcoding.justauth</groupId>
<artifactId>justauth-spring-boot-starter</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
</dependencies>
(3) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.1.8:3860/test?useSSL=false&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
spring.datasource.username=mysql
spring.datasource.password=123456
spring.redis.host=192.168.1.8
spring.redis.port=8302
#spring.redis.password=123456
spring.redis.timeout=2000ms
spring.redis.database=0
spring.redis.lettuce.pool.maxActive=8
spring.redis.lettuce.pool.maxIdle=8
mybatis-plus.mapper-locations=classpath:mapper/*.xml
mybatis-plus.type-aliases-package=Entity
mybatis-plus.global-config.db-config.id-type=AUTO
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
logging.level.com.xkcoding=debug
justauth.enabled=true
justauth.type.BAIDU.client-id=xxxxxx
justauth.type.BAIDU.client-secret=xxxxxx
justauth.type.BAIDU.redirect-uri=http://127.0.0.1:8310/oauth/baidu/callback
justauth.type.GITEE.client-id=xxx
justauth.type.GITEE.client-secret=xxx
justauth.type.GITEE.redirect-uri=http://127.0.0.1:8310/oauth/gitee/callback
justauth.cache.type=redis
justauth.cache.prefix=JUATAUTH::STATE::
justauth.cache.timeout=3m
(4) 创建Configure包，并创建RedisConfig.java文件
RedisConfig.java文件中内容：
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cache.Cache;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.CacheErrorHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;
@EnableCaching
@Configuration
public class RedisConfig extends CachingConfigurerSupport {
Logger log = LoggerFactory.getLogger(RedisConfig.class);
@Bean(name = "redisTemplate")
@ConditionalOnMissingBean(name = "redisTemplate")
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<Object, Object> template = new RedisTemplate<>();
template.setValueSerializer(new Jackson2JsonRedisSerializer<Object>(Object.class));
template.setHashValueSerializer(new Jackson2JsonRedisSerializer<>(Object.class));
template.setKeySerializer(new StringRedisSerializer());
template.setHashKeySerializer(new StringRedisSerializer());
template.setConnectionFactory(redisConnectionFactory);
return template;
}
/**
* 缓存错误处理
*/
@Bean
public CacheErrorHandler errorHandler() {
return new CacheErrorHandler() {
@Override
public void handleCacheGetError(RuntimeException e, Cache cache, Object key) {
log.error("Redis occur handleCacheGetError：key -> [{}]", key, e);
}
@Override
public void handleCachePutError(RuntimeException e, Cache cache, Object key, Object value) {
log.error("Redis occur handleCachePutError：key -> [{}]；value -> [{}]", key, value, e);
}
@Override
public void handleCacheEvictError(RuntimeException e, Cache cache, Object key) {
log.error("Redis occur handleCacheEvictError：key -> [{}]", key, e);
}
@Override
public void handleCacheClearError(RuntimeException e, Cache cache) {
log.error("Redis occur handleCacheClearError：", e);
}
};
}
/**
* 注入Redis缓存配置类
*
* @return
*/
@Bean(name = { "redisCacheConfiguration" })
public RedisCacheConfiguration redisCacheConfiguration() {
RedisCacheConfiguration configuration = RedisCacheConfiguration.defaultCacheConfig();
configuration = configuration
.serializeKeysWith(
RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
.serializeValuesWith(RedisSerializationContext.SerializationPair
.fromSerializer(new Jackson2JsonRedisSerializer<>(Object.class)));
return configuration;
}
}
(5) 在Configure包中创建JustAuthTokenCache.java文件
JustAuthTokenCache.java文件中内容：
import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.BoundHashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import com.alibaba.fastjson.JSONObject;
import me.zhyd.oauth.model.AuthToken;
@Configuration
public class JustAuthTokenCache {
@SuppressWarnings("rawtypes")
@Autowired
private RedisTemplate redisTemplate;
private BoundHashOperations<String, String, AuthToken> valueOperations;
@SuppressWarnings("unchecked")
@PostConstruct
public void init() {
valueOperations = redisTemplate.boundHashOps("JUSTAUTH::TOKEN");
}
/**
* 保存Token
*
* @param uuid 用户uuid
* @param authUser 授权用户
* @return
*/
public AuthToken saveorUpdate(String uuid, AuthToken authToken) {
valueOperations.put(uuid, authToken);
return authToken;
}
/**
* 根据用户uuid查询Token
*
* @param uuid 用户uuid
* @return
*/
public AuthToken getByUuid(String uuid) {
Object token = valueOperations.get(uuid);
if (null == token) {
return null;
}
return JSONObject.parseObject(JSONObject.toJSONString(token), AuthToken.class);
}
/**
* 查询所有Token
*
* @return
*/
public List<AuthToken> listAll() {
return new LinkedList<>(Objects.requireNonNull(valueOperations.values()));
}
/**
* 根据用户uuid移除Token
*
* @param uuid 用户uuid
* @return
*/
public void remove(String uuid) {
valueOperations.delete(uuid);
}
}
(6) 创建Entity包，并创建JustAuthUser.java文件
JustAuthUser.java文件中内容：
import java.io.Serializable;
import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import me.zhyd.oauth.model.AuthToken;
import me.zhyd.oauth.model.AuthUser;
@TableName(value = "t_ja_user")
public class JustAuthUser extends AuthUser implements Serializable {
private static final long serialVersionUID = 1L;
/**
* 用户第三方系统的唯一id。在调用方集成该组件时，可以用uuid + source唯一确定一个用户
*/
@TableId(type = IdType.INPUT)
private String uuid;
/**
* 用户授权的token信息
*/
@TableField(exist = false)
private AuthToken token;
/**
* 第三方平台返回的原始用户信息
*/
@TableField(exist = false)
private JSONObject rawUserInfo;
/**
* 自定义构造函数
*
* @param authUser 授权成功后的用户信息，根据授权平台的不同，获取的数据完整性也不同
*/
public JustAuthUser(AuthUser authUser) {
super(authUser.getUuid(), authUser.getUsername(), authUser.getNickname(), authUser.getAvatar(),
authUser.getBlog(), authUser.getCompany(), authUser.getLocation(), authUser.getEmail(),
authUser.getRemark(), authUser.getGender(), authUser.getSource(), authUser.getToken(),
authUser.getRawUserInfo());
}
}
(7) 创建Dao包，并创建JustAuthUserMapper.java文件
JustAuthUserMapper.java文件中内容：
import org.apache.ibatis.annotations.Mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import Entity.*;
@Mapper
public interface JustAuthUserMapper extends BaseMapper<JustAuthUser> {
}
(8) 创建service包，并创建JustAuthUserService.java文件
JustAuthUserService.java文件中内容：
import com.baomidou.mybatisplus.extension.service.IService;
import Entity.*;
public interface JustAuthUserService extends IService<JustAuthUser> {
/**
* 保存或更新授权用户
*
* @param justAuthUser 授权用户
* @return
*/
boolean saveOrUpdate(JustAuthUser justAuthUser);
/**
* 根据用户uuid查询信息
*
* @param uuid 用户uuid
* @return
*/
JustAuthUser getByUuid(String uuid);
/**
* 根据用户uuid移除信息
*
* @param uuid 用户uuid
* @return
*/
boolean removeByUuid(String uuid);
}
(9) 在service包中创建JustAuthUserServiceImpl.java文件
JustAuthUserServiceImpl.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import Configure.JustAuthTokenCache;
import Dao.*;
import Entity.*;
@Service
public class JustAuthUserServiceImpl extends ServiceImpl<JustAuthUserMapper, JustAuthUser>
implements JustAuthUserService {
@Autowired
private JustAuthTokenCache justAuthTokenCache;
/**
* 保存或更新授权用户
*
* @param justAuthUser 授权用户
* @return
*/
@Override
public boolean saveOrUpdate(JustAuthUser justAuthUser) {
justAuthTokenCache.saveorUpdate(justAuthUser.getUuid(), justAuthUser.getToken());
return super.saveOrUpdate(justAuthUser);
}
/**
* 根据用户uuid查询信息
*
* @param uuid 用户uuid
* @return
*/
@Override
public JustAuthUser getByUuid(String uuid) {
JustAuthUser justAuthUser = super.getById(uuid);
if (justAuthUser != null) {
justAuthUser.setToken(justAuthTokenCache.getByUuid(uuid));
}
return justAuthUser;
}
/**
* 根据用户uuid移除信息
*
* @param uuid 用户uuid
* @return
*/
@Override
public boolean removeByUuid(String uuid) {
justAuthTokenCache.remove(uuid);
return super.removeById(uuid);
}
}
(10) 创建domain包，并创建ResultCode.java文件
ResultCode.java文件中内容：
import com.fasterxml.jackson.annotation.JsonFormat;
@JsonFormat(shape = JsonFormat.Shape.OBJECT)
public enum ResultCode {
/*
请求返回状态码和说明信息
*/
SUCCESS(200, "成功"),
BAD_REQUEST(400, "参数或者语法不对"),
UNAUTHORIZED(401, "认证失败"),
LOGIN_ERROR(401, "登陆失败，用户名或密码无效"),
FORBIDDEN(403, "禁止访问"),
NOT_FOUND(404, "请求的资源不存在"),
OPERATE_ERROR(405, "操作失败，请求操作的资源不存在"),
TIME_OUT(408, "请求超时"),
SERVER_ERROR(500, "服务器内部错误"),
;
private int code;
private String msg;
ResultCode(int code, String msg) {
this.code = code;
this.msg = msg;
}
public void setCode(int code) {
this.code = code;
}
public int getCode() {
return code;
}
public String getMsg() {
return msg;
}
}
(11) 在domain包中创建PageResult.java文件
PageResult.java文件中内容：
public class PageResult {
private int page;
private int rows;
private int total;
private Object data;
public PageResult(int page, int rows, int total, Object data) {
this.page = page;
this.rows = rows;
this.total = total;
this.data = data;
}
public void setPage(int page) {
this.page = page;
}
public int getPage() {
return page;
}
public void setRows(int rows) {
this.rows = rows;
}
public int getRows() {
return rows;
}
public void setTotal(int total) {
this.total = total;
}
public int getTotal() {
return total;
}
public void setData(Object data) {
this.data = data;
}
public Object getData() {
return data;
}
}
(12) 在domain包中创建ResultJson.java文件
ResultJson.java文件中内容：
public class ResultJson {
private int code;
private String msg;
private Object data;
public static ResultJson Success() {
return Success("");
}
public static ResultJson Success(Object o) {
return new ResultJson(ResultCode.SUCCESS, o);
}
public static ResultJson Failure(Object o) {
return new ResultJson(ResultCode.BAD_REQUEST, o);
}
public static ResultJson Failure(ResultCode code) {
return Failure(code, "");
}
public static ResultJson Failure(ResultCode code, Object o) {
return new ResultJson(code, o);
}
public ResultJson (ResultCode resultCode) {
setResultCode(resultCode);
}
public ResultJson (ResultCode resultCode,Object data) {
setResultCode(resultCode);
this.data = data;
}
public void setResultCode(ResultCode resultCode) {
this.code = resultCode.getCode();
this.msg = resultCode.getMsg();
}
public void setCode(int code) {
this.code = code;
}
public int getCode() {
return code;
}
public void setMsg(String msg) {
this.msg = msg;
}
public String getMsg() {
return msg;
}
public void setData(Object data) {
this.data = data;
}
public Object getData() {
return data;
}
public ResultJson(int code, String msg, Object data) {
this.code = code;
this.msg = msg;
this.data = data;
}
@Override
public String toString() {
return "{" +
"\"code\":" + code +
", \"msg\":\"" + msg + '\"' +
", \"data\":\"" + data + '\"'+
'}';
}
}
(13) 创建controller包，并创建AuthController.java文件
AuthController.java文件中内容：
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.alibaba.fastjson.JSON;
import com.xkcoding.justauth.AuthRequestFactory;
import Entity.JustAuthUser;
import domain.ResultCode;
import domain.ResultJson;
import me.zhyd.oauth.model.AuthCallback;
import me.zhyd.oauth.model.AuthResponse;
import me.zhyd.oauth.model.AuthToken;
import me.zhyd.oauth.model.AuthUser;
import me.zhyd.oauth.request.AuthRequest;
import me.zhyd.oauth.utils.AuthStateUtils;
import service.JustAuthUserService;
@RestController
@RequestMapping("/oauth")
public class AuthController {
Logger log = LoggerFactory.getLogger(AuthController.class);
@Autowired
private AuthRequestFactory factory;
@Autowired
private JustAuthUserService justAuthUserService;
/**
* 登录
*
* @param type 第三方系统类型，例如：gitee/baidu
* @param response
* @throws IOException
*/
@GetMapping("/login/{type}")
public void login(@PathVariable String type, HttpServletResponse response) throws IOException {
AuthRequest authRequest = factory.get(type);
response.sendRedirect(authRequest.authorize(AuthStateUtils.createState()));
}
/**
* 登录回调
*
* @param type 第三方系统类型，例如：gitee/baidu
* @param callback
* @return
*/
@SuppressWarnings("unchecked")
@RequestMapping("/{type}/callback")
public ResultJson login(@PathVariable String type, AuthCallback callback) {
AuthRequest authRequest = factory.get(type);
AuthResponse<AuthUser> response = authRequest.login(callback);
log.info("【response】= {}", JSON.toJSONString(response));
if (response.ok()) {
justAuthUserService.saveOrUpdate(new JustAuthUser(response.getData()));
return ResultJson.Success(JSON.toJSONString(response));
}
return ResultJson.Failure(response.getMsg());
}
/**
* 收回
*
* @param type 第三方系统类型，例如：gitee/baidu
* @param uuid 用户uuid
* @return
*/
@SuppressWarnings("unchecked")
@RequestMapping("/revoke/{type}/{uuid}")
public ResultJson revoke(@PathVariable String type, @PathVariable String uuid) {
AuthRequest authRequest = factory.get(type);
JustAuthUser justAuthUser = justAuthUserService.getByUuid(uuid);
if (null == justAuthUser) {
return ResultJson.Failure("用户不存在");
}
AuthResponse<AuthToken> response = null;
try {
response = authRequest.revoke(justAuthUser.getToken());
if (response.ok()) {
justAuthUserService.removeByUuid(justAuthUser.getUuid());
return ResultJson.Success("用户 [" + justAuthUser.getUsername() + "] 的 授权状态 已收回！");
}
return ResultJson.Failure("用户 [" + justAuthUser.getUsername() + "] 的 授权状态 收回失败！" + response.getMsg());
} catch (Exception e) {
return ResultJson.Failure(ResultCode.BAD_REQUEST);
}
}
/**
* 刷新
*
* @param type 第三方系统类型，例如：gitee/baidu
* @param uuid 用户uuid
* @return
*/
@SuppressWarnings("unchecked")
@RequestMapping("/refresh/{type}/{uuid}")
@ResponseBody
public ResultJson refresh(@PathVariable String type, @PathVariable String uuid) {
AuthRequest authRequest = factory.get(type);
JustAuthUser justAuthUser = justAuthUserService.getByUuid(uuid);
if (null == justAuthUser) {
return ResultJson.Failure("用户不存在");
}
AuthResponse<AuthToken> response = null;
try {
response = authRequest.refresh(justAuthUser.getToken());
if (response.ok()) {
justAuthUser.setToken(response.getData());
justAuthUserService.saveOrUpdate(justAuthUser);
return ResultJson.Success("用户 [" + justAuthUser.getUsername() + "] 的 access token 已刷新！新的 accessToken: "
+ response.getData().getAccessToken());
}
return ResultJson.Failure("用户 [" + justAuthUser.getUsername() + "] 的 access token 刷新失败！" + response.getMsg());
} catch (Exception e) {
return ResultJson.Failure(ResultCode.BAD_REQUEST);
}
}
}
(14) 主启动目录中内容
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,service,controller")
@MapperScan("Dao")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
(15) 测试验证
[登录]：
浏览器访问地址：http://127.0.0.1:8443/oauth/login/baidu，即可获取到对应信息。
请观察数据库及Redis中数据变化。
[刷新Token]：
浏览器访问地址：http://127.0.0.1:8443/oauth/refresh/baidu/[uuid]，其中uuid为数据库表中的uuid。
目前插件中已实现的可刷新的第三方应用有限，请查看AuthRequest.refresh方法的实现类。
请观察Redis中数据变化。
[移除Token]：
浏览器访问地址：http://127.0.0.1:8443/oauth/revoke/baidu/[uuid]，其中uuid为数据库表中的uuid。
目前插件中已实现的可刷新的第三方应用有限，请查看AuthRequest.revoke方法的实现类。
请观察数据库及Redis中数据变化。
48. Springboot集成Xjar程序加密
Xjar基于对jar包内资源的加密以及拓展ClassLoader来构建的一套程序加密启动，动态解密运行的方案，避免源码泄露或反编译。它不需要侵入代码，只需要把编译好的jar包通过工具加密即可。
(1) 依赖包
<repositories>
<repository>
<id>jitpack</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.github.core-lib</groupId>
<artifactId>xjar</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-compress</artifactId>
<version>1.20</version>
</dependency>
</dependencies>
(2) 创建test.java文件
test.java文件中内容：
import io.xjar.XCryptos;
public class test {
public static void encrypt() throws Exception {
XCryptos.encryption()
//项目生成的jar
.from("F://Java//Test01//SpringStart.jar")
// 加密的密码
.use("testaa1111122222")
.include("/**/*.class")
.include("/**/*.xml")
.include("/**/*.yml")
.include("/**/*.properties")
.to("F://Java//Test01//test.jar");
}
public static void main(String[] args) throws Exception {
encrypt();
}
}
(3) 将生成文件xjar.go放入GoLang语言环境中编译
go bulid xjar.go
注：
xjar.go在Windows生成xjar.exe文件，在Linux生成xjar文件
(4) 启动Springboot项目
Windows启动：
xjar.exe java -jar test.jar
Linux启动：
nohup ./xjar java -jar test.jar
49. Springboot集成Log4j2操作Sentry异常监控系统
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions><!-- 去掉springboot默认配置 -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.sentry</groupId>
<artifactId>sentry-log4j2</artifactId>
<version>1.7.23</version>
</dependency>
<dependency> <!-- 引入log4j2依赖 -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
logging.config=classpath:log4j2.xml
(3) 在resources资源文件夹中创建sentry.properties文件
sentry.properties文件中内容：
stacktrace.app.packages=
dsn=http://edb111ae20f6464baf358d1b0c2662ae@192.168.0.142:9000/17
(4) 在resources资源文件夹中创建log4j2.xml文件
log4j2.xml文件中内容：
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="warn" packages="org.apache.logging.log4j.core,io.sentry.log4j2">
<appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</Console>
<Sentry name="Sentry"/>
</appenders>
<loggers>
<root level="INFO">
<appender-ref ref="Console" />
<!-- Note that the Sentry logging threshold is overridden to the WARN level -->
<appender-ref ref="Sentry" level="WARN" />
</root>
</loggers>
</configuration>
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
Logger logger = LogManager.getLogger(LogManager.ROOT_LOGGER_NAME);
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() throws Exception {
logger.error("测试sentry打印error日志");
return "成功";
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
50. Springboot集成Logback操作Sentry异常监控系统
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.sentry</groupId>
<artifactId>sentry-logback</artifactId>
<version>1.7.23</version>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
logging.config=classpath:logback.xml
(3) 在resources资源文件夹中创建sentry.properties文件
sentry.properties文件中内容：
stacktrace.app.packages=
dsn=http://edb111ae20f6464baf358d1b0c2662ae@192.168.0.142:9000/17
(4) 在resources资源文件夹中创建logback.xml文件
logback.xml文件中内容：
<configuration>
<!-- Configure the Console appender -->
<appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<!-- Configure the Sentry appender, overriding the logging threshold to the WARN level -->
<appender name="Sentry" class="io.sentry.logback.SentryAppender">
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>WARN</level>
</filter>
</appender>
<!-- Enable the Console and Sentry appenders, Console is provided as an example
of a non-Sentry logger that is set to a different logging threshold -->
<root level="INFO">
<appender-ref ref="Console" />
<appender-ref ref="Sentry" />
</root>
</configuration>
(5) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@CrossOrigin
@RestController
public class controller {
Logger logger = LogManager.getLogger(LogManager.ROOT_LOGGER_NAME);
@RequestMapping(value = "/index",method = RequestMethod.GET)
public String Index() throws Exception {
logger.error("测试sentry打印error日志");
return "成功";
}
}
(6) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
51. Springboot集成LucySheet在线协同
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>4.3.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.73</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
(2) 创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port=8310
spring.freemarker.request-context-attribute=request
spring.freemarker.suffix=.html
spring.freemarker.content-type=text/html
spring.resources.static-locations=classpath:/resources/static/
spring.freemarker.enabled=true
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.allow-request-override=false
spring.freemarker.expose-request-attributes=true
spring.freemarker.expose-session-attributes=true
spring.freemarker.expose-spring-macro-helpers=true
spring.data.mongodb.uri=mongodb://127.0.0.1:8892/wb?authSource=admin&readPreference=primary&ssl=false
(3) 在resuorces资源文件夹中创建templates文件夹，并创建websocket.html文件
websocket.html文件中内容：
<!DOCTYPE html>
<html>
<head lang='zh'>
<meta charset='utf-8'>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="renderer" content="webkit"/>
<meta name="viewport" content="width=device-width, initial-scale=1,user-scalable=0"/>
<title>websocket--luckysheet</title>
<link rel='stylesheet' href='/lib/plugins/css/pluginsCss.css'/>
<link rel='stylesheet' href='/lib/plugins/plugins.css'/>
<link rel='stylesheet' href='/lib/css/luckysheet.css'/>
<link rel='stylesheet' href='/lib/assets/iconfont/iconfont.css'/>
<script src="/lib/plugins/js/plugin.js"></script>
<script src="/lib/luckysheet.umd.js"></script>
</head>
<body>
<div id="${wb.option.container}"
style="margin:0px;padding:0px;position:absolute;width:100%;height:100%;left: 0px;top: 0px;"></div>
</div>
</body>
<script>
var localurl = "//" + window.location.host;
// 配置项
var options = {
container: "${wb.option.container}", // 设定DOM容器的id
title: "${wb.option.title}", // 设定表格名称
lang: "${wb.option.lang}",
allowUpdate: true,
showinfobar: true,//作用：是否显示顶部信息栏
functionButton: '<button id="" class="btn btn-primary" onclick="clicks()" style="padding:3px 6px;font-size: 12px;margin-right: 10px;">保存</button> <button id="" class="btn btn-primary btn-danger" style=" padding:3px 6px; font-size: 12px; margin-right: 85px;" onclick="downExcelData()">下载</button>',
loadUrl: window.location.protocol + localurl + "/load/${wb.id}",
loadSheetUrl: window.location.protocol + localurl + "/loadSheet/${wb.id}",
updateUrl: "ws://"+localurl + "/ws/" + Math.round(Math.random() * 100) + "/${wb.id}"
// 更多其他设置...
}
// 初始化表格
luckysheet.create(options)
function uploadExcelData() {
//console.log(luckysheet.getAllSheets());
//console.log("lll=" + JSON.stringify(luckysheet.getAllSheets()));
//上传例子，可以把这个数据保存到服务器上。下次可以从服务器直接加载luckysheet数据了。
$.post("/excel/uploadData", {
exceldatas: JSON.stringify(luckysheet.getAllSheets()),
title: options.title,
}, function (data) {
//console.log("data = " + data)
alert("保存成功！")
});
}
function downExcelData() {
//这里你要自己写个后台接口，处理上传上来的Excel数据，用post传输。我用的是Java后台处理导出！这里只是写了post请求的写法
$.post("/excel/downfile", {
exceldatas: JSON.stringify(luckysheet.getAllSheets()),
}, function (data) {
//console.log("data = " + data)
});
}
</script>
</html>
(4) 创建资源文件夹static文件夹，将LuckySheet相关资源放入
(5) 创建utils包，并创建PakoGzipUtils.java文件
PakoGzipUtils.java文件中内容：
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
public class PakoGzipUtils {
public static String compress(String str) throws IOException {
if (str == null || str.length() == 0) {
return str;
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
GZIPOutputStream gzip = new GZIPOutputStream(out);
gzip.write(str.getBytes());
gzip.close();
return out.toString("ISO-8859-1");
}
/**
* @param str：
* @return 解压字符串 生成正常字符串。
* @throws IOException
*/
public static String uncompress(String str) throws IOException {
if (str == null || str.length() == 0) {
return str;
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayInputStream in = new ByteArrayInputStream(str.getBytes("ISO-8859-1"));
GZIPInputStream gunzip = new GZIPInputStream(in);
byte[] buffer = new byte[256];
int n;
while ((n = gunzip.read(buffer)) >= 0) {
out.write(buffer, 0, n);
}
// toString()使用平台默认编码，也可以显式的指定如toString("GBK")
return out.toString();
}
/**
* @param jsUriStr :字符串类型为
* @return 生成正常字符串
* @throws IOException
*/
public static String unCompressURI(String jsUriStr) throws IOException {
String gzipCompress=uncompress(jsUriStr);
String result=URLDecoder.decode(gzipCompress,"UTF-8");
return result;
}
/**
* @param strData :字符串类型为： 正常字符串
* @return 生成字符串类型为：
*/
public static String compress2URI(String strData) throws IOException {
String encodeGzip=compress(strData);
String jsUriStr=URLEncoder.encode(encodeGzip,"UTF-8");
return jsUriStr;
}
}
(6) 在utils包中创建SheetUtil.java文件
SheetUtil.java文件中内容：
import java.util.ArrayList;
import java.util.List;
import cn.hutool.core.util.IdUtil;
import cn.hutool.json.JSONObject;
public class SheetUtil {
/**
* 获取sheet的默认option
* @return
*/
public static JSONObject getDefautOption() {
JSONObject jsonObject = new JSONObject();
jsonObject.put("container", "ecsheet");
jsonObject.put("title", "ecsheet demo");
jsonObject.put("lang", "zh");
jsonObject.put("allowUpdate", true);
jsonObject.put("loadUrl", "");
jsonObject.put("loadSheetUrl", "");
jsonObject.put("updateUrl", "");
return jsonObject;
}
/**
* 获取默认的sheetData
* @return
*/
public static List<JSONObject> getDefaultSheetData() {
List<JSONObject> list = new ArrayList<>();
for (int i = 1; i < 4; i++) {
JSONObject jsonObject = new JSONObject();
jsonObject.put("row", 84);
jsonObject.put("column", 60);
jsonObject.put("name", "sheet" + i);
Integer index = i - 1;
jsonObject.put("index", IdUtil.simpleUUID());
jsonObject.put("order", i - 1);
if (i == 1) {
jsonObject.put("status", 1);
} else {
jsonObject.put("status", 0);
}
jsonObject.put("celldata", new ArrayList<JSONObject>() {
});
list.add(jsonObject);
}
return list;
}
/**
* 获取默认的全部sheetData
* @return
*/
public static JSONObject getDefaultAllSheetData() {
JSONObject result = new JSONObject();
for (int i = 1; i < 4; i++) {
JSONObject data = new JSONObject();
data.put("r", 0);
data.put("c", 0);
data.put("v", new JSONObject());
result.put("sheet" + i, data);
}
return result;
}
/**
* 组装异步加载sheet所需的数据
*
* @param data
* @return
*/
public static JSONObject buildSheetData(List<JSONObject> data) {
JSONObject result = new JSONObject();
data.forEach((d) -> {
result.put(d.get("index").toString(), d.get("celldata"));
});
return result;
}
}
(7) 创建service包，并创建IMessageProcess.java文件
IMessageProcess.java文件中内容：
import cn.hutool.json.JSONObject;
public interface IMessageProcess {
void process(String gridKey,JSONObject message);
}
(8) 在service包中创建MessageProcess.java文件
MessageProcess.java文件中内容：
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import entity.WorkBookEntity;
import entity.WorkSheetEntity;
import repository.WorkBookRepository;
import repository.WorkSheetRepository;
@Service
public class MessageProcess implements IMessageProcess {
@Autowired
private WorkSheetRepository workSheetRepository;
@Autowired
private WorkBookRepository workBookRepository;
@Override
public void process(String wbId, JSONObject message) {
//获取操作名
String action = message.getStr("t");
//获取sheet的index值
String index = message.getStr("i");
//如果是复制sheet，index的值需要另取
if ("shc".equals(action)) {
index = message.getJSONObject("v").getStr("copyindex");
}
//如果是删除sheet，index的值需要另取
if ("shd".equals(action)) {
index = message.getJSONObject("v").getStr("deleIndex");
}
//如果是恢复sheet，index的值需要另取
if ("shre".equals(action)) {
index = message.getJSONObject("v").getStr("reIndex");
}
WorkSheetEntity ws = workSheetRepository.findByindexAndwbId(index, wbId);
System.out.println("操作："+action);
switch (action) {
//单个单元格刷新
case "v":
ws = singleCellRefresh(ws, message);
break;
//范围单元格刷新
case "rv":
ws = rangeCellRefresh(ws, message);
break;
//config操作
case "cg":
ws = configRefresh(ws, message);
break;
//通用保存
case "all":
ws = allRefresh(ws, message);
break;
//函数链操作
case "fc":
ws = calcChainRefresh(ws, message);
break;
//删除行或列
case "drc":
ws = drcRefresh(ws, message);
break;
//增加行或列
case "arc":
ws = arcRefresh(ws, message);
break;
//清除筛选
case "fsc":
ws = fscRefresh(ws, message);
break;
//恢复筛选
case "fsr":
ws = fscRefresh(ws, message);
break;
//新建sheet
case "sha":
ws = shaRefresh(wbId, message);
break;
//切换到指定sheet
case "shs":
shsRefresh(wbId, message);
break;
//复制sheet
case "shc":
ws = shcRefresh(ws, message);
break;
//修改工作簿名称
case "na":
naRefresh(wbId, message);
break;
//删除sheet
case "shd":
ws.setDeleteStatus(1);
break;
//删除sheet后恢复操作
case "shre":
ws.setDeleteStatus(0);
break;
//调整sheet位置
case "shr":
shrRefresh(wbId, message);
break;
//sheet属性(隐藏或显示)
case "sh":
ws = shRefresh(ws, message);
break;
default:
break;
}
if (ObjectUtil.isNull(ws)) {
return;
}
workSheetRepository.save(ws);
}
/**
* 单个单元格刷新
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity singleCellRefresh(WorkSheetEntity ws, JSONObject message) {
//对celldata进行深拷贝
JSONArray celldata = ObjectUtil.cloneByStream(ws.getData().getJSONArray("celldata"));
if (StrUtil.isBlank(message.getStr("v"))) {
celldata.forEach(c -> {
JSONObject jsonObject = JSONUtil.parseObj(c);
if (!jsonObject.isEmpty()) {
if (jsonObject.getLong("r") == message.getLong("r") && jsonObject.getLong("c") == message.getLong("c")) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
}
}
});
} else {
JSONObject collectData = JSONUtil.createObj().put("r", message.getLong("r")).put("c", message.getLong("c")).put("v", message.getJSONObject("v"));
List<String> flag = new ArrayList<>();
celldata.forEach(c -> {
JSONObject jsonObject = JSONUtil.parseObj(c);
if (!jsonObject.isEmpty()) {
if (jsonObject.getLong("r") == message.getLong("r") && jsonObject.getLong("c") == message.getLong("c")) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
ws.getData().getJSONArray("celldata").add(collectData);
flag.add("used");
}
}
});
if (flag.isEmpty()) {
ws.getData().getJSONArray("celldata").add(collectData);
}
}
return ws;
}
/**
* 范围单元格刷新
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity rangeCellRefresh(WorkSheetEntity ws, JSONObject message) {
JSONArray rowArray = message.getJSONObject("range").getJSONArray("row");
JSONArray columnArray = message.getJSONObject("range").getJSONArray("column");
JSONArray vArray = message.getJSONArray("v");
JSONArray celldata = ObjectUtil.cloneByStream(ws.getData().getJSONArray("celldata"));
int countRowIndex = 0;
//遍历行列，对符合行列的内容进行更新
for (int ri = (int) rowArray.get(0); ri <= (int) rowArray.get(1); ri++) {
int countColumnIndex = 0;
for (int ci = (int) columnArray.get(0); ci <= (int) columnArray.get(1); ci++) {
List<String> flag = new ArrayList<>();
Object newCell = JSONUtil.parseArray(vArray.get(countRowIndex)).get(countColumnIndex);
JSONObject collectData = JSONUtil.createObj().put("r", ri).put("c", ci).put("v", newCell);
int rowIndex = ri;
int columnIndex = ci;
celldata.forEach(cell -> {
JSONObject jsonObject = JSONUtil.parseObj(cell);
if (!jsonObject.isEmpty()) {
if (jsonObject.getInt("r") == rowIndex && jsonObject.getInt("c") == columnIndex) {
if ("null".equals(newCell.toString()) || JSONUtil.parseObj(newCell).isEmpty()) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
} else {
ws.getData().getJSONArray("celldata").remove(jsonObject);
ws.getData().getJSONArray("celldata").add(collectData);
}
flag.add("used");
}
}
});
if (flag.isEmpty() && !JSONUtil.parseObj(newCell).isEmpty()) {
ws.getData().getJSONArray("celldata").add(collectData);
}
countColumnIndex++;
}
countRowIndex++;
}
return ws;
}
/**
* config更新
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity configRefresh(WorkSheetEntity ws, JSONObject message) {
JSONObject v = message.getJSONObject("v");
JSONObject newConfig = JSONUtil.createObj().put(message.getStr("k"), v);
System.out.println(ws.getData());
if(ws.getData().getJSONObject("config") != null) {
if (ws.getData().getJSONObject("config").isEmpty()) {
ws.getData().put("config", newConfig);
} else {
ws.getData().getJSONObject("config").put(message.getStr("k"), v);
}
}
return ws;
}
/**
* 通用保存
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity allRefresh(WorkSheetEntity ws, JSONObject message) {
if (message.getJSONObject("v").isEmpty()) {
ws.getData().remove(message.getStr("k"));
} else {
ws.getData().put(message.getStr("k"), message.getJSONObject("v"));
}
return ws;
}
/**
* 函数链操作
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity calcChainRefresh(WorkSheetEntity ws, JSONObject message) {
JSONObject value = message.getJSONObject("v");
if (!ws.getData().containsKey("calcChain")) {
ws.getData().put("calcChain", new JSONArray());
}
JSONArray calcChain = ws.getData().getJSONArray("calcChain");
if ("add".equals(message.getStr("op"))) {
calcChain.add(value);
} else if ("update".equals(message.getStr("op"))) {
calcChain.remove(calcChain.get(message.getInt(message.getStr("pos"))));
calcChain.add(value);
} else if ("del".equals(message.getStr("op"))) {
calcChain.remove(calcChain.get(message.getInt(message.getStr("pos"))));
}
return ws;
}
/**
* 删除行或列
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity drcRefresh(WorkSheetEntity ws, JSONObject message) {
JSONArray celldata = ObjectUtil.cloneByStream(ws.getData().getJSONArray("celldata"));
int index = message.getJSONObject("v").getInt("index");
int len = message.getJSONObject("v").getInt("len");
if ("r".equals(message.getStr("rc"))) {
ws.getData().put("row", ws.getData().getInt("row") - len);
} else {
ws.getData().put("column", ws.getData().getInt("column") - len);
}
for (Object cell : celldata) {
JSONObject jsonObject = JSONUtil.parseObj(cell);
if ("r".equals(message.getStr("rc"))) {
//删除行所在区域的内容
if (jsonObject.getInt("r") >= index && jsonObject.getInt("r") < index + len) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
}
//增加大于 最大删除行的的行号
if (jsonObject.getInt("r") >= index + len) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
jsonObject.put("r", jsonObject.getInt("r") - len);
ws.getData().getJSONArray("celldata").add(jsonObject);
}
} else {
//删除列所在区域的内容
if (jsonObject.getInt("c") >= index && jsonObject.getInt("c") < index + len) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
}
//增加大于 最大删除列的的列号
if (jsonObject.getInt("c") >= index + len) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
jsonObject.put("c", jsonObject.getInt("c") - len);
ws.getData().getJSONArray("celldata").add(jsonObject);
}
}
}
return ws;
}
/**
* 增加行或列,暂未实现插入数据的情况
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity arcRefresh(WorkSheetEntity ws, JSONObject message) {
JSONArray celldata = ObjectUtil.cloneByStream(ws.getData().getJSONArray("celldata"));
int index = message.getJSONObject("v").getInt("index");
int len = message.getJSONObject("v").getInt("len");
for (Object cell : celldata) {
JSONObject jsonObject = JSONUtil.parseObj(cell);
if ("r".equals(message.getStr("rc"))) {
//如果是增加行，且是向左增加
if (jsonObject.getInt("r") >= index && "lefttop".equals(message.getJSONObject("v").getStr("direction"))) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
jsonObject.put("r", jsonObject.getInt("r") + len);
ws.getData().getJSONArray("celldata").add(jsonObject);
}
//如果是增加行，且是向右增加
if (jsonObject.getInt("r") > index && "rightbottom".equals(message.getJSONObject("v").getStr("direction"))) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
jsonObject.put("r", jsonObject.getInt("r") + len);
ws.getData().getJSONArray("celldata").add(jsonObject);
}
} else {
//如果是增加列，且是向上增加
if (jsonObject.getInt("c") >= index && "lefttop".equals(message.getJSONObject("v").getStr("direction"))) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
jsonObject.put("c", jsonObject.getInt("c") + len);
ws.getData().getJSONArray("celldata").add(jsonObject);
}
//如果是增加列，且是向下增加
if (jsonObject.getInt("c") > index && "rightbottom".equals(message.getJSONObject("v").getStr("direction"))) {
ws.getData().getJSONArray("celldata").remove(jsonObject);
jsonObject.put("c", jsonObject.getInt("c") + len);
ws.getData().getJSONArray("celldata").add(jsonObject);
}
}
}
JSONArray vArray = message.getJSONObject("v").getJSONArray("data");
if ("r".equals(message.getStr("rc"))) {
ws.getData().put("row", ws.getData().getInt("row") + len);
for (int r = 0; r < vArray.size(); r++) {
for (int c = 0; c < JSONUtil.parseArray(vArray.get(0)).size(); c++) {
if (JSONUtil.parseArray(vArray.get(r)).get(c) == null) {
continue;
}
JSONObject newCell = JSONUtil.createObj().put("r", r + index).put("c", c).put("v", JSONUtil.parseArray(vArray.get(r)).get(c));
ws.getData().getJSONArray("celldata").add(newCell);
}
}
} else {
ws.getData().put("column", ws.getData().getInt("column") + len);
for (int r = 0; r < vArray.size(); r++) {
for (int c = 0; c < JSONUtil.parseArray(vArray.get(0)).size(); c++) {
if (JSONUtil.parseArray(vArray.get(r)).get(c) == null) {
continue;
}
JSONObject newCell = JSONUtil.createObj().put("r", r).put("c", c + index).put("v", JSONUtil.parseArray(vArray.get(r)).get(c));
ws.getData().getJSONArray("celldata").add(newCell);
}
}
}
return ws;
}
/**
* 筛选操作
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity fscRefresh(WorkSheetEntity ws, JSONObject message) {
if (message.getJSONObject("v").isEmpty()) {
ws.getData().remove("filter");
ws.getData().remove("filter_select");
} else {
ws.getData().put("filter", message.getJSONObject("v").getJSONArray("filter"));
ws.getData().put("filter_select", message.getJSONObject("v").getJSONObject("filter_select"));
}
return ws;
}
/**
* 新建sheet
*
* @param wbId
* @param message
* @return
*/
private WorkSheetEntity shaRefresh(String wbId, JSONObject message) {
WorkSheetEntity ws = new WorkSheetEntity();
ws.setWbId(wbId);
ws.setData(message.getJSONObject("v"));
return ws;
}
/**
* 复制sheet
*
* @param ws
* @param message
* @return
*/
private WorkSheetEntity shcRefresh(WorkSheetEntity ws, JSONObject message) {
String index = message.getStr("i");
ws.getData().put("index", index);
ws.getData().put("name", message.getJSONObject("v").getStr("name"));
return ws;
}
/**
* 调整sheet位置
*
* @param wbId
* @param message
*/
private void shrRefresh(String wbId, JSONObject message) {
List<WorkSheetEntity> allSheets = workSheetRepository.findAllBywbId(wbId);
allSheets.forEach(sheet -> {
sheet.getData().put("order", message.getJSONObject("v").getInt(sheet.getData().getStr("index")));
workSheetRepository.save(sheet);
});
}
/**
* 切换到指定sheet
*
* @param ws
* @param message
* @return
*/
private void shsRefresh(String wbId, JSONObject message) {
WorkSheetEntity lastWs = workSheetRepository.findBystatusAndwbId(1, wbId);
lastWs.getData().put("status", 0);
WorkSheetEntity thisWs = workSheetRepository.findByindexAndwbId(message.getStr("v"), wbId);
thisWs.getData().put("status", 1);
workSheetRepository.save(lastWs);
workSheetRepository.save(thisWs);
}
/**
* sheet属性(隐藏或显示)
*
* @param wbId
* @param message
*/
private WorkSheetEntity shRefresh(WorkSheetEntity ws, JSONObject message) {
Integer hideStatus = message.getInt("v");
ws.getData().put("hide", hideStatus);
WorkSheetEntity curWs = new WorkSheetEntity();
if ("hide".equals(message.getStr("op"))) {
ws.getData().put("status", 0);
String cur = message.getStr("cur");
curWs = workSheetRepository.findByindexAndwbId(cur, ws.getWbId());
curWs.getData().put("status", 1);
} else {
curWs = workSheetRepository.findBystatusAndwbId(1, ws.getWbId());
curWs.getData().put("status", 0);
}
workSheetRepository.save(curWs);
return ws;
}
/**
* 修改工作簿名称
*
* @param wbId
* @param message
* @return
*/
private void naRefresh(String wbId, JSONObject message) {
Optional<WorkBookEntity> wb = workBookRepository.findById(wbId);
if (wb.isPresent()) {
WorkBookEntity workBookEntity = wb.get();
workBookEntity.getOption().put("title", message.getStr("v"));
workBookRepository.save(workBookEntity);
}
}
}
(9) 创建common包，并创建ResponseDTO.java文件
ResponseDTO.java文件中内容：
public class ResponseDTO {
private Integer type;
private String id;
private String username;
private String data;
public ResponseDTO(Integer type, String id, String username, String data) {
this.type = type;
this.id = id;
this.username = username;
this.data = data;
}
public Integer getType() {
return type;
}
public void setType(Integer type) {
this.type = type;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
public static ResponseDTO success(String id,String username,String data) {
return new ResponseDTO(1,id,username, data);
}
public static ResponseDTO update(String id,String username,String data) {
return new ResponseDTO(2,id,username, data);
}
public static ResponseDTO mv(String id,String username,String data) {
return new ResponseDTO(3,id,username, data);
}
public static ResponseDTO bulkUpdate(String id,String username,String data) {
return new ResponseDTO(4,id,username ,data);
}
}
(10) 创建entity包，并创建WorkBookEntity.java文件
WorkBookEntity.java文件中内容：
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import cn.hutool.json.JSONObject;
@Document(collection = "workbook")
public class WorkBookEntity {
@Id
private String id;
private String name;
private JSONObject option;
public WorkBookEntity() {
}
public WorkBookEntity(String id, String name, JSONObject option) {
this.id = id;
this.name = name;
this.option = option;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public JSONObject getOption() {
return option;
}
public void setOption(JSONObject option) {
this.option = option;
}
}
(11) 在entity包中创建WorkSheetEntity.java文件
WorkSheetEntity.java文件中内容：
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import cn.hutool.json.JSONObject;
@Document(collection = "worksheet")
public class WorkSheetEntity {
@Id
private String id;
private String wbId;
private JSONObject data;
/**
* 删除标记,0是未删除，1是删除
*/
private int deleteStatus;
public WorkSheetEntity() {
}
public WorkSheetEntity(String id, String wbId, JSONObject data, int deleteStatus) {
this.id = id;
this.wbId = wbId;
this.data = data;
this.deleteStatus = deleteStatus;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getWbId() {
return wbId;
}
public void setWbId(String wbId) {
this.wbId = wbId;
}
public JSONObject getData() {
return data;
}
public void setData(JSONObject data) {
this.data = data;
}
public int getDeleteStatus() {
return deleteStatus;
}
public void setDeleteStatus(int deleteStatus) {
this.deleteStatus = deleteStatus;
}
}
(12) 创建repository包，并创建WorkBookRepository.java文件
WorkBookRepository.java文件中内容：
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import entity.*;
@Repository
public interface WorkBookRepository extends MongoRepository<WorkBookEntity,String> {
}
(13) 在repository包中创建WorkSheetRepository.java文件
WorkSheetRepository.java文件中内容：
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.mongodb.repository.Query;
import org.springframework.stereotype.Repository;
import entity.*;
import java.util.List;
@Repository
public interface WorkSheetRepository extends MongoRepository<WorkSheetEntity,String> {
@Query(value = "{'wbId':?0,'deleteStatus':0}")
List<WorkSheetEntity> findAllBywbId(String wbId);
@Query(value = "{'data.index':?0,'wbId':?1}")
WorkSheetEntity findByindexAndwbId(String index,String wbId);
@Query(value = "{'data.status':?0,'wbId':?1}")
WorkSheetEntity findBystatusAndwbId(int status,String wbId);
}
(14) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
import com.alibaba.fastjson.JSON;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import entity.*;
import repository.*;
import utils.*;
@CrossOrigin
@RestController
public class controller {
@Autowired
private WorkBookRepository workBookRepository;
@Autowired
private WorkSheetRepository workSheetRepository;
@GetMapping("index/create")
public void create(HttpServletRequest request, HttpServletResponse response) throws IOException {
WorkBookEntity wb = new WorkBookEntity();
wb.setName("default");
wb.setOption(SheetUtil.getDefautOption());
WorkBookEntity saveWb = workBookRepository.save(wb);
//生成sheet数据
generateSheet(saveWb.getId());
response.sendRedirect("/index/" + saveWb.getId());
}
@GetMapping("/index/{wbId}")
public ModelAndView index(@PathVariable(value = "wbId") String wbId) {
Optional<WorkBookEntity> Owb = workBookRepository.findById(wbId);
WorkBookEntity wb = new WorkBookEntity();
if (!Owb.isPresent()) {
wb.setId(wbId);
wb.setName("default");
wb.setOption(SheetUtil.getDefautOption());
WorkBookEntity result = workBookRepository.save(wb);
generateSheet(wbId);
} else {
wb = Owb.get();
}
return new ModelAndView("websocket", "wb", wb);
}
@PostMapping("/load/{wbId}")
public String load(@PathVariable(value = "wbId") String wbId) {
List<WorkSheetEntity> wsList = workSheetRepository.findAllBywbId(wbId);
List<JSONObject> list = new ArrayList<JSONObject>();
wsList.forEach(ws -> {
list.add(ws.getData());
});
return JSONUtil.toJsonStr(list);
}
@PostMapping("/loadSheet/{wbId}")
public String loadSheet(@PathVariable(value = "wbId") String wbId) {
List<WorkSheetEntity> wsList = workSheetRepository.findAllBywbId(wbId);
List<JSONObject> list = new ArrayList<>();
wsList.forEach(ws -> {
list.add(ws.getData());
});
if (!list.isEmpty()) {
return SheetUtil.buildSheetData(list).toString();
}
return SheetUtil.getDefaultAllSheetData().toString();
}
private void generateSheet(String wbId) {
SheetUtil.getDefaultSheetData().forEach(jsonObject -> {
WorkSheetEntity ws = new WorkSheetEntity();
ws.setWbId(wbId);
ws.setData(jsonObject);
ws.setDeleteStatus(0);
workSheetRepository.save(ws);
});
}
}
(15) 创建config包，并创建WebSocketConfig.java文件
WebSocketConfig.java文件中内容：
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;
@Configuration
public class WebSocketConfig {
@Bean
public ServerEndpointExporter serverEndpointExporter() {
return new ServerEndpointExporter();
}
}
(16) 在controller包中创建WebSocketServer.java文件
WebSocketServer.java文件中内容：
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.PostConstruct;
import javax.websocket.EncodeException;
import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import cn.hutool.log.Log;
import cn.hutool.log.LogFactory;
import common.*;
import service.*;
import utils.*;
@ServerEndpoint("/ws/{userId}/{gridKey}")
@Component
public class WebSocketServer {
static Log log = LogFactory.get(WebSocketServer.class);
private static WebSocketServer webSocketServer;
/**
* 静态变量，用来记录当前在线连接数。应该把它设计成线程安全的。
*/
private static int onlineCount = 0;
/**
* concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。
*/
private static ConcurrentHashMap<String, Map<String, WebSocketServer>> webSocketMap = new ConcurrentHashMap<>();
/**
* 与某个客户端的连接会话，需要通过它来给客户端发送数据
*/
private Session session;
/**
* 接收userId
*/
private String userId = "";
/**
* 表格主键
*/
private String gridKey = "";
@Autowired
private IMessageProcess messageProcess;
@PostConstruct //通过@PostConstruct实现初始化bean之前进行的操作
public void init() {
webSocketServer = this;
webSocketServer.messageProcess = this.messageProcess;
}
/**
* 连接建立成功调用的方法
*/
@OnOpen
public void onOpen(Session session, @PathParam("userId") String userId, @PathParam("gridKey") String gridKey) {
this.session = session;
this.userId = userId;
this.gridKey = gridKey;
if (webSocketMap.containsKey(gridKey)) {
webSocketMap.get(gridKey).put(userId, this);
} else {
Map<String, WebSocketServer> map = new HashMap<>();
map.put(userId, this);
webSocketMap.put(gridKey, map);
}
addOnlineCount();
log.info("用户连接:" + userId + ",打开的表格为：" + gridKey + ",当前在线人数为:" + getOnlineCount());
}
/**
* 连接关闭调用的方法
*/
@OnClose
public void onClose() {
if (webSocketMap.containsKey(this.gridKey)) {
webSocketMap.get(this.gridKey).remove(this.userId);
if (webSocketMap.get(this.gridKey).isEmpty()) {
webSocketMap.remove(this.gridKey);
}
}
subOnlineCount();
log.info("用户退出:" + this.userId + ",打开的表格为：" + this.gridKey + ",当前在线人数为:" + getOnlineCount());
}
/**
* 收到客户端消息后调用的方法
*
* @param message 客户端发送过来的消息
*/
@OnMessage
public void onMessage(String message, Session session) {
//可以群发消息
//消息保存到数据库、redis
if (StrUtil.isNotBlank(message)) {
try {
if ("rub".equals(message)) {
return;
}
String unMessage = PakoGzipUtils.unCompressURI(message);
log.info("用户消息:" + userId + ",报文:" + unMessage);
JSONObject jsonObject = JSONUtil.parseObj(unMessage);
if (!"mv".equals(jsonObject.getStr("t"))) {
webSocketServer.messageProcess.process(this.gridKey, jsonObject);
}
Map<String, WebSocketServer> sessionMap = webSocketMap.get(this.gridKey);
if (StrUtil.isNotBlank(unMessage)) {
sessionMap.forEach((key, value) -> {
//广播到除了发送者外的其它连接端
if (!key.equals(this.userId)) {
try {
//如果是mv,代表发送者的表格位置信息
if ("mv".equals(jsonObject.getStr("t"))) {
value.sendMessage(JSONUtil.toJsonStr(ResponseDTO.mv(userId, userId, unMessage)));
//如果是切换sheet，则不发送信息
} else if(!"shs".equals(jsonObject.getStr("t"))) {
value.sendMessage(JSONUtil.toJsonStr(ResponseDTO.update(userId, userId, unMessage)));
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* @param session
* @param error
*/
@OnError
public void onError(Session session, Throwable error) {
log.error("用户错误:" + this.userId + ",原因:" + error.getMessage());
error.printStackTrace();
}
/**
* 实现服务器主动推送
*/
public void sendMessage(String message) throws IOException, EncodeException {
this.session.getAsyncRemote().sendText(message);
}
public static synchronized int getOnlineCount() {
return onlineCount;
}
public static synchronized void addOnlineCount() {
WebSocketServer.onlineCount++;
}
public static synchronized void subOnlineCount() {
WebSocketServer.onlineCount--;
}
}
(17) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
@EnableAutoConfiguration
@ComponentScan("config,service,controller")
@EnableMongoRepositories(basePackages = {"repository"})
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}
52. Springboot集成Mqtt服务
(1) 依赖包
<!-- springboot 父节点区域 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
</parent>
<dependencies>
<!-- springboot依赖包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-integration</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-stream</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-mqtt</artifactId>
</dependency>
</dependencies>
(2) 主启动目录中创建资源文件夹resources文件夹，并创建application.properties文件
application.properties文件中内容：
server.port = 8310
spring.mqtt.username=admin
spring.mqtt.password=public
## 推送信息的连接地址，如果有多个，用逗号隔开
spring.mqtt.url=tcp://127.0.0.1:1883
spring.mqtt.client.id=${random.value}
spring.mqtt.default.topic=topic
(3) 创建Configure包，并创建customerConfigure.java文件
customerConfigure.java文件中内容：
mport org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.core.MessageProducer;
import org.springframework.integration.mqtt.core.DefaultMqttPahoClientFactory;
import org.springframework.integration.mqtt.core.MqttPahoClientFactory;
import org.springframework.integration.mqtt.inbound.MqttPahoMessageDrivenChannelAdapter;
import org.springframework.integration.mqtt.support.DefaultPahoMessageConverter;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
@Configuration
public class MqttConfigure {
@Value("${spring.mqtt.username}")
private String username;
@Value("${spring.mqtt.password}")
private String password;
@Value("${spring.mqtt.url}")
private String hostUrl;
@Value("${spring.mqtt.client.id}")
private String clientId;
@Value("${spring.mqtt.default.topic}")
private String defaultTopic;
@Bean
public MqttPahoClientFactory mqttClientFactory() {
DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
factory.setUserName(username);
factory.setPassword(password);
factory.setServerURIs(new String[]{hostUrl});
factory.setKeepAliveInterval(2);
return factory;
}
//接收通道
@Bean
public MessageChannel mqttInputChannel() {
return new DirectChannel();
}
//配置client,监听的topic
@Bean
public MessageProducer inbound() {
MqttPahoMessageDrivenChannelAdapter adapter =
new MqttPahoMessageDrivenChannelAdapter(clientId, mqttClientFactory(),defaultTopic);
adapter.setConverter(new DefaultPahoMessageConverter());
adapter.setQos(1);
adapter.setOutputChannel(mqttInputChannel());
return adapter;
}
//通过通道获取数据
@Bean
@ServiceActivator(inputChannel = "mqttInputChannel")
public MessageHandler handler() {
return new MessageHandler() {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
System.out.println("接收消息内容 : " + message.getPayload());
}
};
}
}
(4) 在Configure包中创建providerConfigure.java文件
providerConfigure.java文件中内容：
import org.eclipse.paho.client.mqttv3.MqttClient;
import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.eclipse.paho.client.mqttv3.MqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttMessage;
import org.eclipse.paho.client.mqttv3.MqttPersistenceException;
import org.eclipse.paho.client.mqttv3.MqttTopic;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class providerConfigure {
@Value("${spring.mqtt.username}")
private String username;
@Value("${spring.mqtt.password}")
private String password;
@Value("${spring.mqtt.url}")
private String hostUrl;
@Value("${spring.mqtt.client.id}")
private String clientId;
@Value("${spring.mqtt.default.topic}")
private String defaultTopic;
private static MqttClient client;
public static MqttClient getClient() {
return client;
}
public static void setClient(MqttClient client) {
ProviderService.client = client;
}
@Bean
public MqttConnectOptions getMqttConnectOptions(){
MqttConnectOptions mqttConnectOptions=new MqttConnectOptions();
mqttConnectOptions.setUserName(username);
mqttConnectOptions.setPassword(password.toCharArray());
mqttConnectOptions.setCleanSession(false);
mqttConnectOptions.setKeepAliveInterval(2);
return mqttConnectOptions;
}
@Bean
public MqttClient getMqttPushClient() throws MqttException{
client = new MqttClient(hostUrl, clientId,new MemoryPersistence());
client.connect(getMqttConnectOptions());
client.setCallback(new ProviderCallback());
return client;
}
public void publish(String topic,String pushMessage){
publish(0, false, topic, pushMessage);
}
public void publish(int qos,boolean retained,String topic,String pushMessage){
MqttMessage message = new MqttMessage();
message.setQos(qos);
message.setRetained(retained);
message.setPayload(pushMessage.getBytes());
MqttTopic mTopic = ProviderService.getClient().getTopic(topic);
MqttDeliveryToken token;
try {
token = mTopic.publish(message);
token.waitForCompletion();
} catch (MqttPersistenceException e) {
e.printStackTrace();
} catch (MqttException e) {
e.printStackTrace();
}
}
public void subscribe(String topic){
subscribe(topic,0);
}
/**
* 订阅某个主题
* @param topic
* @param qos
*/
public void subscribe(String topic,int qos){
try {
ProviderService.getClient().subscribe(topic, qos);
} catch (MqttException e) {
e.printStackTrace();
}
}
}
(5) 在Configure包中创建providerCallback.java文件
providerCallback.java文件中内容：
import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.MqttCallback;
import org.eclipse.paho.client.mqttv3.MqttMessage;
public class ProviderCallback implements MqttCallback {
@Override
public void connectionLost(Throwable cause) {
}
@Override
public void messageArrived(String topic, MqttMessage message) throws Exception {
// TODO Auto-generated method stub
// TODO Auto-generated method stub
System.out.println("接收消息主题 : " + topic);
System.out.println("接收消息Qos : " + message.getQos());
System.out.println("接收消息内容 : " + new String(message.getPayload()));
}
@Override
public void deliveryComplete(IMqttDeliveryToken token) {
}
}
(6) 创建controller包，并创建controller.java文件
controller.java文件中内容：
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class Controller {
@Autowired
private ProviderService mqttProvider;
@RequestMapping(value="/index",method = {RequestMethod.GET,RequestMethod.POST})
public @ResponseBody String Index() {
mqttProvider.publish("topic", "字符串");
return "success";
}
}
(7) 主启动目录中内容
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@EnableAutoConfiguration
@ComponentScan("Configure,controller")
public class Start {
public static void main(String[] args) {
SpringApplication.run(Start.class, args);
}
}