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YunaiV
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增加 spring cloud bus rabbitmq 示例
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‎README.md

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* [《芋道 Spring Cloud Alibaba 配置中心 Nacos 入门》](http://www.iocoder.cn/Spring-Cloud-Alibaba/Nacos-Config/?github) 对应 [labx-05](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-05)
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* [《芋道 Spring Cloud 配置中心 Apollo 入门》](http://www.iocoder.cn/Spring-Cloud/Apollo/?github) 对应 [labx-09](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-09)
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* [《芋道 Spring Cloud 配置中心 Spring Cloud Config 入门》](http://www.iocoder.cn/Spring-Cloud/Config/?github) 对应 [labx-12](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-12)
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* [《芋道 Spring Cloud 配置中心 Spring Cloud Config 入门》](http://www.iocoder.cn/Spring-Cloud/Spring-Cloud-Config/?github) 对应 [labx-12](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-12)
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## 消息队列
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‎labx-18/labx-18-sc-bus-rabbitmq-demo-listener-actuator/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>labx-18</artifactId>
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<groupId>cn.iocoder.springboot.labs</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>labx-18-sc-bus-rabbitmq-demo-listener-actuator</artifactId>
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<properties>
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<maven.compiler.target>1.8</maven.compiler.target>
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<maven.compiler.source>1.8</maven.compiler.source>
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<spring.boot.version>2.2.4.RELEASE</spring.boot.version>
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<spring.cloud.version>Hoxton.SR1</spring.cloud.version>
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</properties>
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<!--
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引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
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在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
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-->
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>${spring.boot.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring.cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<!-- 引入基于 RabbitMQ 的 Spring Cloud Bus 的实现的依赖，并实现对其的自动配置 -->
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-bus-amqp</artifactId>
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</dependency>
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<!-- 实现对 Actuator 的自动化配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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</dependencies>
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</project>

‎labx-18/labx-18-sc-bus-rabbitmq-demo-listener-actuator/src/main/java/cn/iocoder/springcloud/labx18/listenerdemo/ListenerDemoApplication.java

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package cn.iocoder.springcloud.labx18.listenerdemo;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.bus.jackson.RemoteApplicationEventScan;
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@SpringBootApplication
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@RemoteApplicationEventScan
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public class ListenerDemoApplication {
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public static void main(String[] args) {
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SpringApplication.run(ListenerDemoApplication.class, args);
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}
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}

‎labx-18/labx-18-sc-bus-rabbitmq-demo-listener-actuator/src/main/java/cn/iocoder/springcloud/labx18/listenerdemo/event/UserRegisterEvent.java

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package cn.iocoder.springcloud.labx18.listenerdemo.event;
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import org.springframework.cloud.bus.event.RemoteApplicationEvent;
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/**
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* 用户注册事件
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*/
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public class UserRegisterEvent extends RemoteApplicationEvent {
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/**
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* 用户名
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*/
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private String username;
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public UserRegisterEvent() { // 序列化
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}
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public UserRegisterEvent(Object source, String originService, String destinationService, String username) {
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super(source, originService);
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this.username = username;
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}
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public String getUsername() {
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return username;
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}
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}

‎labx-18/labx-18-sc-bus-rabbitmq-demo-listener-actuator/src/main/java/cn/iocoder/springcloud/labx18/listenerdemo/listener/UserRegisterListener.java

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package cn.iocoder.springcloud.labx18.listenerdemo.listener;
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import cn.iocoder.springcloud.labx18.listenerdemo.event.UserRegisterEvent;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.context.ApplicationListener;
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import org.springframework.stereotype.Component;
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/**
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* 用户注册事件的监听器
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*/
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@Component
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public class UserRegisterListener implements ApplicationListener<UserRegisterEvent> {
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private Logger logger = LoggerFactory.getLogger(getClass());
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@Override
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public void onApplicationEvent(UserRegisterEvent event) {
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logger.info("[onApplicationEvent][监听到用户({}) 注册]", event.getUsername());
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}
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}

‎labx-18/labx-18-sc-bus-rabbitmq-demo-listener-actuator/src/main/resources/application.yml

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spring:
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application:
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name: listener-demo
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# RabbitMQ 相关配置项
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rabbitmq:
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host: localhost
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port: 5672
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username: guest
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password: guest
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server:
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port: 18080 # 随机端口，方便启动多个消费者
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management:
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endpoints:
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# Actuator HTTP 配置项，对应 WebEndpointProperties 配置类
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web:
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exposure:
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include: '*' # 需要开放的端点。默认值只打开 health 和 info 两个端点。通过设置 * ，可以开放所有端点。

‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher-actuator/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>labx-18</artifactId>
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<groupId>cn.iocoder.springboot.labs</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>labx-18-sc-bus-rabbitmq-demo-publisher-actuator</artifactId>
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<properties>
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<maven.compiler.target>1.8</maven.compiler.target>
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<maven.compiler.source>1.8</maven.compiler.source>
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<spring.boot.version>2.2.4.RELEASE</spring.boot.version>
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<spring.cloud.version>Hoxton.SR1</spring.cloud.version>
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</properties>
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<!--
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引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
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在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
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-->
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>${spring.boot.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring.cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<!-- 引入基于 RabbitMQ 的 Spring Cloud Bus 的实现的依赖，并实现对其的自动配置 -->
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-bus-amqp</artifactId>
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</dependency>
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<!-- 实现对 Actuator 的自动化配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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</dependencies>
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</project>

‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher-actuator/src/main/java/cn/iocoder/springcloud/labx18/publisherdemo/PublisherDemoApplication.java

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package cn.iocoder.springcloud.labx18.publisherdemo;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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//@RemoteApplicationEventScan
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public class PublisherDemoApplication {
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public static void main(String[] args) {
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SpringApplication.run(PublisherDemoApplication.class, args);
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}
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}

‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher-actuator/src/main/java/cn/iocoder/springcloud/labx18/publisherdemo/controller/DemoController.java

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package cn.iocoder.springcloud.labx18.publisherdemo.controller;
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import cn.iocoder.springcloud.labx18.publisherdemo.event.UserRegisterEvent;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cloud.bus.ServiceMatcher;
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import org.springframework.context.ApplicationEventPublisher;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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@RequestMapping("/demo")
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public class DemoController {
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private Logger logger = LoggerFactory.getLogger(getClass());
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@Autowired
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private ApplicationEventPublisher applicationEventPublisher;
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@Autowired
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private ServiceMatcher busServiceMatcher;
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@GetMapping("/register")
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public String register(String username) {
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// ... 执行注册逻辑
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logger.info("[register][执行用户({}) 的注册逻辑]", username);
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// ... 发布
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applicationEventPublisher.publishEvent(new UserRegisterEvent(this, busServiceMatcher.getServiceId(),
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null, username));
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return "success";
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}
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}

‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher-actuator/src/main/java/cn/iocoder/springcloud/labx18/publisherdemo/event/UserRegisterEvent.java

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package cn.iocoder.springcloud.labx18.publisherdemo.event;
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import org.springframework.cloud.bus.event.RemoteApplicationEvent;
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/**
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* 用户注册事件
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*/
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public class UserRegisterEvent extends RemoteApplicationEvent {
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/**
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* 用户名
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*/
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private String username;
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public UserRegisterEvent() { // 序列化
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}
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public UserRegisterEvent(Object source, String originService, String destinationService, String username) {
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super(source, originService);
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this.username = username;
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}
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public String getUsername() {
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return username;
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}
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}

‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher-actuator/src/main/resources/application.yml

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spring:
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application:
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name: publisher-demo
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# RabbitMQ 相关配置项
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rabbitmq:
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host: localhost
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port: 5672
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username: guest
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password: guest
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management:
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endpoints:
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# Actuator HTTP 配置项，对应 WebEndpointProperties 配置类
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web:
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exposure:
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include: '*' # 需要开放的端点。默认值只打开 health 和 info 两个端点。通过设置 * ，可以开放所有端点。

‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher/src/main/java/cn/iocoder/springcloud/labx18/publisherdemo/controller/DemoController.java

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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cloud.bus.ServiceMatcher;
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import org.springframework.context.ApplicationEventPublisher;
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import org.springframework.context.ApplicationEventPublisherAware;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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@RequestMapping("/demo")
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public class DemoController implements ApplicationEventPublisherAware {
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public class DemoController {
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private Logger logger = LoggerFactory.getLogger(getClass());
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@Autowired
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private ApplicationEventPublisher applicationEventPublisher;
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@Autowired
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private ServiceMatcher busServiceMatcher;
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@Override
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public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
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this.applicationEventPublisher = applicationEventPublisher;
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}
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@GetMapping("/register")
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public String register(String username) {
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// ... 执行注册逻辑
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logger.info("[register][执行用户({}) 的注册逻辑]", username);
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// ... 发布
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applicationEventPublisher.publishEvent(new UserRegisterEvent(this, busServiceMatcher.getServiceId(),
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"**", username));
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null, username));
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return "success";
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}
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‎labx-18/labx-18-sc-bus-rabbitmq-demo-publisher/src/main/resources/application.yml

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port: 5672
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username: guest
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password: guest
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# Bus 相关配置项，对应 BusProperties
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cloud:
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bus:
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enabled: true # 是否开启，默认为 true
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destination: springCloudBus # 目标消息队列，默认为 springCloudBus

‎labx-18/pom.xml

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<modules>
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<module>labx-18-sc-bus-rabbitmq-demo-publisher</module>
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<module>labx-18-sc-bus-rabbitmq-demo-listener</module>
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<module>labx-18-sc-bus-rabbitmq-demo-listener-actuator</module>
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<module>labx-18-sc-bus-rabbitmq-demo-publisher-actuator</module>
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</modules>
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