SpringBoot集成RocketMQ实现消息发送的三种方式

<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-spring-boot-starter</artifactId>
    <version>2.2.2</version>
</dependency>

rocketmq:
  name-server: IP:9876  #IP为rocketmq访问的地址
  producer:
    group: first1-group  #事务消息才会用到

package com.tlxy.lhn.controller.rocketmq;
import org.apache.rocketmq.client.producer.SendCallback;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
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 RocketController {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;
    @RequestMapping(value = "/rocket", method = RequestMethod.GET)
    public void noTag() {
        // convertAndSend() 发送普通字符串消息
        rocketMQTemplate.convertAndSend("sendMessage_topic", "Hello Word");
    }
    @RequestMapping(value = "/tagA", method = RequestMethod.GET)
    public void tagA() {
        rocketMQTemplate.convertAndSend("sendMessage_topic:tagA", "hello world tagA");
    }
    @RequestMapping(value = "/tagB", method = RequestMethod.GET)
    public void tagB() {
        rocketMQTemplate.convertAndSend("sendMessage_topic:tagB", "hello world tagB");
    }
    @RequestMapping(value = "/syncSend", method = RequestMethod.GET)
    public void syncSend() {
        String json = "发送同步消息";
        SendResult sendResult = rocketMQTemplate.syncSend("sendMessage_topic:1", json);
        System.out.println(sendResult);
    }
    @RequestMapping(value = "/aSyncSend", method = RequestMethod.GET)
    public void aSyncSend() {
        String json = "发送异步消息";
        SendCallback callback = new SendCallback() {
            @Override
            public void onSuccess(SendResult sendResult) {
                System.out.println("发送消息成功");
            }
            @Override
            public void onException(Throwable throwable) {
                System.out.println("发送消息失败");
            }
        };
        rocketMQTemplate.asyncSend("sendMessage_topic", json, callback);
    }
    @RequestMapping(value = "/sendOneWay", method = RequestMethod.GET)
    public void sendOneWay() {
        rocketMQTemplate.sendOneWay("sendMessage_topic", "发送单向消息");
    }
}

package com.tlxy.lhn.controller.rocketmq;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Component;
/**
 * topic 是主题
 * consumerGroup 是消费者组，一条消息只能被同一个消费者组里的一个消费者消费。
 * selectorExpression 是用于消息过滤的，以 TAG 方式为例：
 * 默认为 "*"，表示不过滤，消费此 topic 下所有消息
 * 配置为 "tagA"，表示只消费此 topic 下 TAG = tagA 的消息
 * 配置为 "tagA || tagB"，表示消费此 topic 下 TAG = tagA 或  TAG = tagB 的消息，以此类推
 * 消费模式：默认 CLUSTERING （ CLUSTERING：负载均衡 ）（ BROADCASTING：广播机制 ）
 */
@RocketMQMessageListener(topic = "sendMessage_topic",
        consumerGroup = "consumer-group-test1",
//        selectorExpression = "tagA || tagB",
        messageModel = MessageModel.CLUSTERING)
@Component
public class DemoConsumer1 implements RocketMQListener<String> {
    @Override
    public void onMessage(String s) {
        System.out.println("receive message1:" + s);
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        System.out.println("处理完成");
    }
}

package com.tlxy.lhn.controller.rocketmq;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Component;
/**
 * topic 是主题
 * consumerGroup 是消费者组，一条消息只能被同一个消费者组里的一个消费者消费。
 * selectorExpression 是用于消息过滤的，以 TAG 方式为例：
 * 默认为 "*"，表示不过滤，消费此 topic 下所有消息
 * 配置为 "tagA"，表示只消费此 topic 下 TAG = tagA 的消息
 * 配置为 "tagA || tagB"，表示消费此 topic 下 TAG = tagA 或  TAG = tagB 的消息，以此类推
 * 消费模式：默认 CLUSTERING （ CLUSTERING：负载均衡 ）（ BROADCASTING：广播机制 ）
 */
@RocketMQMessageListener(topic = "sendMessage_topic",
        consumerGroup = "consumer-group-test1",
        messageModel = MessageModel.CLUSTERING)
@Component
public class DemoConsumer2 implements RocketMQListener<String> {
    @Override
    public void onMessage(String s) {
        System.out.println("receive message2:" + s);
        try {
            Thread.sleep(8000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        System.out.println("处理完成");
    }
}