<!--rocketMq依賴-->
<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-spring-boot-starter</artifactId>
    <version>2.2.1</version>
</dependency>

二、配置rocketmq

# 端口
server:
port: 8083

# 配置 rocketmq
rocketmq:
name-server: 127.0.0.1:9876
#生產(chǎn)者
producer:
#生產(chǎn)者組名，規(guī)定在一個應(yīng)用里面必須唯一
group: group1
#消息發(fā)送的超時時間默認3000ms
send-message-timeout: 3000
#消息達到4096字節(jié)的時候，消息就會被壓縮。默認 4096
compress-message-body-threshold: 4096
#最大的消息限制，默認為128K
max-message-size: 4194304
#同步消息發(fā)送失敗重試次數(shù)
retry-times-when-send-failed: 3
#在內(nèi)部發(fā)送失敗時是否重試其他代理，這個參數(shù)在有多個broker時才生效
retry-next-server: true
#異步消息發(fā)送失敗重試的次數(shù)
retry-times-when-send-async-failed: 3

三、新建一個controller來做消息發(fā)送

package com.example.springbootrocketdemo.controller;
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.RestController;
/**
 * 模擬兩個訂單發(fā)送消息
 *
 * 順序信息的三種方式：同步、異步、單向
 * syncSendOrderly，發(fā)送同步順序消息；
 * asyncSendOrderly，發(fā)送異步順序消息；
 * sendOneWayOrderly，發(fā)送單向順序消息；
 * 一般我們用第一種發(fā)送同步順序消息；
 * @author qzz
 */
@RestController
public class RocketMQOrderCOntroller {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;
    /**
     * 發(fā)送同步順序消息
     */
    @RequestMapping("/testSyncOrderSend")
    public void testSyncSend(){
        //參數(shù)一：topic   如果想添加tag,可以使用"topic:tag"的寫法
        //參數(shù)二：消息內(nèi)容
        //參數(shù)三：hashKey 用來計算決定消息發(fā)送到哪個消息隊列， 一般是訂單ID，產(chǎn)品ID等
        rocketMQTemplate.syncSendOrderly("test-topic-orderly","111111創(chuàng)建","111111");
        rocketMQTemplate.syncSendOrderly("test-topic-orderly","111111支付","111111");
        rocketMQTemplate.syncSendOrderly("test-topic-orderly","111111完成","111111");
        rocketMQTemplate.syncSendOrderly("test-topic-orderly","222222創(chuàng)建","222222");
        rocketMQTemplate.syncSendOrderly("test-topic-orderly","222222支付","222222");
        rocketMQTemplate.syncSendOrderly("test-topic-orderly","222222完成","222222");
    }
}

四、創(chuàng)建消費端監(jiān)聽消息消費消息

package com.example.springbootrocketdemo.config;
import org.apache.rocketmq.spring.annotation.ConsumeMode;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Service;
/**
 * 消費順序消息
 * 配置RocketMQ監(jiān)聽
 *
 * ConsumeMode.ORDERLY:順序消費
 * @author qzz
 */
@Service
@RocketMQMessageListener(consumerGroup = "test",topic = "test-topic-orderly",consumeMode = ConsumeMode.ORDERLY)
public class RocketMQCommonConsumerListener implements RocketMQListener<String> {
    @Override
    public void onMessage(String s) {
        System.out.println("consumer 順序消費，收到消息:"+s);
    }
}