一文搞懂Spring Boot整合RocketMQ

8 Spring Boot整合RocketMQ

8.1 Maven依赖

<dependency>
    <groupId>org.apache.rocketmqgroupId>
    <artifactId>rocketmq-spring-boot-starterartifactId>
    <version>2.2.0version>
dependency>

8.2 配置文件

server:
  port: 0
rocketmq:
  name-server: 127.0.0.1:9876
  producer:
    group: my_mq_one  # 指定组名 必要参数

8.3 生产者代码

/**
 * @desc: 消息生产者
 * @author: YanMingXin
 * @create: 2021/9/15-12:20
 **/
@Service
public class MessageProvider {

    /**
     * 注入RocketMQTemplate
     */
    @Autowired
    private RocketMQTemplate rocketMQTemplate;

    /**
     * 发送普通消息
     *
     * @param message
     * @return
     */
    public boolean sendMessage(String message) {
        rocketMQTemplate.convertAndSend("Topic1:TagA", message);
        return true;
    }

    /**
     * 发送Spring的消息
     *
     * @param message
     * @return
     */
    public boolean sendSpringMessage(String message) {
        rocketMQTemplate.send("Topic1:TagA", MessageBuilder.withPayload(message).build());
        return true;
    }

    /**
     * 发送异步消息
     *
     * @param message
     * @return
     */
    public boolean sendAsyncMessage(String message) {
        //发送异步消息
        rocketMQTemplate.asyncSend("Topic1:TagA", message, new SendCallback() {
            @Override
            public void onSuccess(SendResult sendResult) {
                //发送成功
                return;
            }

            @Override
            public void onException(Throwable throwable) {
                //发送失败
                return;
            }
        });
        return true;
    }

    /**
     * 发送顺序消息
     * 注：需要加上synchronized，消费者多线程下会不保证顺序
     *
     * @param list
     * @return
     */
    public synchronized boolean sendAscMessage(List<String> list) {
        for (String str : list) {
            //发送顺序消息
            rocketMQTemplate.syncSendOrderly("Topic1", str, str + "hash");
        }
        return true;
    }

}

8.4 消费者代码

/**
 * @desc: 消息消费者
 * @author: YanMingXin
 * @create: 2021/9/15-12:20
 **/
@RocketMQMessageListener(topic = "Topic1", consumerGroup = "my_mq_consumer_one")
public class MessageConsumer implements RocketMQListener<String> {
    @Override
    public void onMessage(String s) {
        System.out.println("Get message is " + s);
    }
}

8.5 测试

@SpringBootTest
class RocketmqSpringBootApplicationTests {

    @Autowired
    private MessageProvider provider;


    @Test
    void contextLoads() {
        provider.sendMessage("Hello World");
        provider.sendSpringMessage("Hello World By Spring");
        provider.sendAsyncMessage("Hello World Async Message");
        List<String> strings = Arrays.asList("A", "B", "C");
        provider.sendAscMessage(strings);
    }

}

测试结果：