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• 前言：rocketmq-all-5.3.0-bin-release.zip版本为例

一、安装

1.1、下载RocketMQ

下载地址：https://rocketmq.apache.org/

1.2、将下载包上传到linux中，然后解压

• 解压命令

unzip rocketmq-all-5.3.0-bin-release.zip

1.3、修改runserver.sh的jvm参数大小（根据自己服务器配置来修改）

# 在rocketmq-all-5.3.0-bin-release/bin下修改
vim runserver.sh

# 修改jvm大小，如果服务器支持这么大的可以不用修改
# 将以下
JAVA_OPT="${JAVA_OPT} -server -Xms4g -Xmx4g -Xmn2g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m"
# 修改为
JAVA_OPT="${JAVA_OPT} -server -Xms512m -Xmx512m -Xmn256m -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m"

1.4、启动mqnamesrv （类似于注册中心）

# 在rocketmq-all-5.3.0-bin-release/bin中启动
nohup ./mqnamesrv &

1.5、修改runbroker.sh的jvm参数大小（根据自己服务器配置来修改）

# 在rocketmq-all-5.3.0-bin-release/bin下修改
vim runbroker.sh

# 修改jvm大小，如果服务器支持这么大的可以不用修改
# 将以下
JAVA_OPT="${JAVA_OPT} -server -Xms4g -Xmx4g"
# 修改为
JAVA_OPT="${JAVA_OPT} -server -Xms512m -Xmx512m"

1.6、修改broker.conf

# 在rocketmq-all-5.3.0-bin-release/conf下修改
vim broker.conf

# 将以下参数加在文件最下方
# 自动创建topic
autoCreateTopicEnable = true
# namesrv注册地址
namesrvAddr=localhost:9876

1.7、启动broker（节点）

# 在rocketmq-all-5.3.0-bin-release/bin中启动
nohup ./mqbroker -c ../conf/broker.conf &

二、springboot中的使用

2.1、pom.xml中添加依赖

<dependency>
  <groupId>org.apache.rocketmq</groupId>
  <artifactId>rocketmq-spring-boot-starter</artifactId>
  <version>2.1.1</version>
</dependency>

2.2、application.yml配置

rocketmq:
  name-server: 192.168.103.81:9876
  producer:
    group: my-consumer_test
  consumer:
    group: my-consumer_test

2.3、生产者模板类

package com.yhgc.rocket;
import org.apache.rocketmq.spring.annotation.ExtRocketMQTemplateConfiguration;
import org.apache.rocketmq.spring.core.RocketMQTemplate;

/**
 * @author 王青松
 */
@ExtRocketMQTemplateConfiguration(nameServer = "${rocketmq.name-server}")
public class ExtRocketMQTemplate extends RocketMQTemplate {
}

2.4、消费者模板类

package com.yhgc.rocket;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Service;
@Service
@RocketMQMessageListener(topic = "testTopic", consumerGroup = "my-consumer_test")
public class TestConsumer implements RocketMQListener<String> {
    @Override
    public void onMessage(String s) {
        System.out.println("============Received message: " + s);
    }
}

2.5、消息调用测试

package com.yhgc.controller;
import com.alibaba.fastjson.JSONObject;
import com.yhgc.rocket.ExtRocketMQTemplate;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;

@RestController
@RequestMapping("/test1")
public class TestController {
    @Autowired
    private ExtRocketMQTemplate rocketMQTemplate;
    @RequestMapping("/t2")
    @ResponseBody
    public JSONObject t2(){
        rocketMQTemplate.convertAndSend("testTopic", "Hello, RocketMQ!");
        JSONObject res = new JSONObject();
        res.put("code",200);
        res.put("msg","调用成功");
        return res;
    }
}

2.6、成功案例