Spring Cloud Bus 集成 RocketMQ

创建项目，引入依赖

xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>demo-bus</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo-bus</name>
    <description>demo-bus</description>
    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.7.18</spring-boot.version>
        <spring-cloud-alibaba.version>2021.0.6.1</spring-cloud-alibaba.version>
        <spring-cloud.version>2021.0.9</spring-cloud.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-stream-rocketmq</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-rocketmq</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
              </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>${project.artifactId}</finalName>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring-boot.version}</version>
                <configuration>
                    <mainClass>com.example.demo.bus.DemoBusApplication</mainClass>
                    <skip>true</skip>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <profiles>
        <profile>
            <id>local</id>
            <properties>
                <profiles.active>local</profiles.active>
            </properties>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
        </profile>
        <profile>
            <id>dev</id>
            <properties>
                <profiles.active>dev</profiles.active>
            </properties>
        </profile>
        <profile>
            <id>test</id>
            <properties>
                <profiles.active>test</profiles.active>
            </properties>
        </profile>
    </profiles>

</project>

配置

yaml

spring:
  profiles:
    active: @profiles.active@
  application:
    name: @project.artifactId@
server:
  port: 13002

yaml

spring:
  cloud:
    stream:
      rocketmq:
        binder:
          enabled: true
          name-server: 192.168.118.128:9876
#      binders:
#        rocketmq:
#          type: rocketmq
#      bindings:
#        topic1-out-0:
#          binder: rocketmq
#          destination: topic2
#        topic2-in-0:
#          binder: rocketmq
#          destination: topic2
#          group: test-group
    bus:
      destination: topic2
      id: ${spring.application.name}:${server.port}
      enabled: true

    nacos:
      server-addr: ${NACOS_HOST:127.0.0.1}:8848
      config:
        namespace: local
        group: DEFAULT_GROUP
        file-extension: yml
        server-addr: ${spring.cloud.nacos.server-addr}
      discovery:
        namespace: ${spring.cloud.nacos.config.namespace}
        group: ${spring.cloud.nacos.config.group}
        server-addr: ${spring.cloud.nacos.server-addr}
        metadata:
          Version: ${service.version}
        ip: ${BUS_IP:127.0.0.1}
  config:
    import:
      - optional:nacos:${spring.application.name}-@profiles.active@.${spring.cloud.nacos.config.file-extension}

创建自定义事件

java

package com.example.demo.bus.event;

import org.springframework.cloud.bus.jackson.RemoteApplicationEventScan;
import org.springframework.context.annotation.Configuration;

@Configuration
@RemoteApplicationEventScan
public class BusEventConfig {
}



package com.example.demo.bus.event;

import org.springframework.cloud.bus.event.Destination;
import org.springframework.cloud.bus.event.RemoteApplicationEvent;

public class MyEvent extends RemoteApplicationEvent {
    public MyEvent() {
        super();
    }

    public MyEvent(Object source, String originService, Destination destination) {
        super(source, originService, destination);
    }
    public MyEvent(Object source, String originService, String destinationService) {
        super(source, originService, DEFAULT_DESTINATION_FACTORY.getDestination(destinationService));
    }


}

创建一个服务

java

package com.example.demo.bus.service;

import com.example.demo.bus.event.MyEvent;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.bus.ServiceMatcher;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service
public class PublisherService {
    @Resource
    private ApplicationEventPublisher applicationEventPublisher;

    @Resource
    protected ServiceMatcher serviceMatcher;

    @Value("${spring.application.name}")
    protected String applicationName;

    public void publish(String message) {
        // 发布事件
        applicationEventPublisher.publishEvent(new MyEvent(message, serviceMatcher.getBusId(), applicationName + ":**"));
    }
}

发布事件和监听事件

java

package com.example.demo.bus.controller;

import com.example.demo.bus.event.MyEvent;
import com.example.demo.bus.service.PublisherService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.bus.event.AckRemoteApplicationEvent;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.event.EventListener;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@Slf4j
@RestController
@RequestMapping("/bus")
public class BusController {

    @Resource
    private PublisherService publisherService;

    @EventListener
    public void onEvent(MyEvent event) {
        log.info("消息ID:{},消息内容:{},消息来源：{}", event.getId(), event.getSource(), event.getOriginService());
    }

    @GetMapping("/send")
    public String send(){
        // 发布事件
        publisherService.publish("消息");
        return "ok";
    }

}

Spring Cloud Bus 集成 RocketMQ ​

创建项目，引入依赖 ​

配置 ​

创建自定义事件 ​

发布事件和监听事件 ​

Spring Cloud Bus 集成 RocketMQ

创建项目，引入依赖

配置

创建自定义事件

发布事件和监听事件