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小维AI总结
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思考中···

1、安装和配置

版本: rocketmq-4.9.3

设置环境变量：

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ROCKETMQ_HOME = E:\LuckySoft\rocketmq-4.9.3

修改JVM内存参数

进入 bin 目录，修改 runserver.cmd 和 runbroker.cmd 中的 JAVA_OPT 参数，根据本地机器配置调整内存大小：

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# 修改前（默认配置）
rem set "JAVA_OPT=%JAVA_OPT% -server -Xms2g -Xmx2g -Xmn1g"

# 修改后（本地开发环境）
set "JAVA_OPT=%JAVA_OPT% -server -Xms256m -Xmx512m"

2、启动服务

启动 NameServer

直接运行 bin 目录下的 mqnamesrv.cmd

启动 Broker

打开 cmd 终端，执行以下命令连接到 NameServer：

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bin>mqbroker.cmd -n localhost:9876

3、Spring Boot 集成代码

引入依赖

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<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-spring-boot-starter</artifactId>
    <version>2.0.4</version>
</dependency>

配置 application.yml

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rocketmq:
  name-server: 127.0.0.1:9876
  producer:
    group: producer-demo1
  consumer:
    group: consumer-demo1

消费者示例

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package com.nwa.Lis;

import com.nwa.aop.SysLog;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Component;

/**
 * @Author Lucky友人a
 * @Date 2023/2/27 -13:03
 */
@RocketMQMessageListener(topic = "rocket-send1", consumerGroup = "${rocketmq.consumer.group}")
@Component
public class RocketConsumerListener implements RocketMQListener<String> {
    @Override
    @SysLog(operationType = "接收", operationName = "接收,并展示", value = "200")
    public void onMessage(String s) {
        System.out.println("consumer 收到消息：" + s);
    }
}

生产者示例

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package com.nwa.controller;

import com.nwa.aop.SysLog;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

/**
 * @Author Lucky友人a
 * @Date 2023/2/27 -13:02
 */
@RestController
@RequestMapping("/rocket/producer")
public class RocketProducerHandler {

    @Resource
    private RocketMQTemplate rocketMQTemplate;

    @SysLog(operationType = "用户操作", operationName = "发送,并展示", value = "200")
    @RequestMapping("/send")
    public String send() {
        for (int i = 0; i < 10; i++) {
            rocketMQTemplate.convertAndSend("rocket-send1", "rocket-testA-" + i);
        }
        return "send ok";
    }
}