实现功能

主要实现一个客户端系统发送消息到rocketmq服务器,另外一个客户端系统从rocketmq服务器里读取发送的消息。

发送端

添加依赖

<dependency>
	<groupId>org.apache.rocketmq</groupId>
	<artifactId>rocketmq-spring-boot</artifactId>
	<version>2.0.1</version>
</dependency>
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-web</artifactId>
</dependency>

application.yml

server:
  port: 8021
rocketmq:
  name-server: 127.0.0.1:9876
  producer:
    group: my-group

程序代码

package com.mqdemo;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DemoController {

    @Autowired
    protected RocketMQTemplate rocketMQTemplate;

      @GetMapping("/send")
      public void send(){
          rocketMQTemplate.convertAndSend("test_topic_3","hello world");
      }
}

接收端

添加依赖

<dependency>
	<groupId>org.apache.rocketmq</groupId>
	<artifactId>rocketmq-spring-boot</artifactId>
	<version>2.0.1</version>
</dependency>

application.yml

server:
  port: 8022
rocketmq:
  name-server: 127.0.0.1:9876
  # 定义发布者组名
  consumer:
    group: my-customer-group1
  # 定义要发送的topic
  topic: test_topic_3

程序代码

package com.receivemqdemo;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Component;

@Component
@RocketMQMessageListener(topic = "test_topic_3",consumerGroup = "my-consumer_test-topic-1")
public class ReceiveListener implements RocketMQListener<String> {

    @Override
    public void onMessage(String string) {
        System.out.println("接受到的消息："+string);
    }
}