基于rocket MQ 和 linux 命令实现线上程序发布

因为公司业务的需求想实现一键分发程序,更新所有门店以及店铺运行的程序jar包版本,根据技术探讨,所以选型 rocket MQ 消息中间件 + linux 命令来实现这个需求。

Rocket MQ 消息中间件

  • rocket mq 实现提供者和消费者可以查看下面的代码

    https://gitee.com/adorexm/adore-rocket-mq

  • 注意: 上面的链接代码实现了rocketmq的单机版本,未拆分出提供者和消费者的jar包。

  • rocket mq的安装参看下面链接
    https://www.jianshu.com/p/d1481c00ce07

选择rocket mq的原因:
(1)支持顺序消费
(2)支持分布式事务

程序发布的原理

简单的理解就是:使用rocket mq的消息订阅和分发,来实现一对多的消费。并根据java对linux命令的集成。

实现的简单代码如下:

package com.uhi.publish.service;

import com.alibaba.fastjson.JSONObject;
import com.Adore.publish.entity.TAdorePublishServiceManage;
import com.Adore.publish.utils.DateUtils;
import com.Adore.rocket.consumer.mq.entity.AdoreMQBaseMsg;
import com.Adore.rocket.consumer.mq.service.AdoreMQConsumerService;
import lombok.extern.log4j.Log4j2;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

import java.io.BufferedReader;
import java.io.InputStreamReader;

/**
 * @Author: AdoreFT
 * @License: (C) Copyright 2017-2022, AdoreXM Corporation Limited.
 * @Date: 2021/6/30 11:21
 * @Version: 1.0
 * @Description: AdorePublishServiceImpl
 **/
@Service
@Log4j2
public class AdorePublishServiceImpl implements AdoreMQConsumerService {

    @Override
    public void consumerMessage(String message, String messageId) throws Exception {
        if (StringUtils.isBlank(message)) {
            log.error(String.format("消息消费程序为空,messageId:%s", messageId));
            return;
        }
        //获取message
        AdoreMQBaseMsg mqBaseMsg = JSONObject.parseObject(message, AdoreMQBaseMsg.class);
        //转换message
        TAdorePublishServiceManage publishServiceManage = JSONObject.parseObject(mqBaseMsg.getMessage(), TAdorePublishServiceManage.class);
        if (StringUtils.isBlank(publishServiceManage.getOssurl())) {
            log.error(String.format("消息消费程序ossUrl为空,message:%s,messageId:%s", message, messageId));
            return;
        }
        if (StringUtils.isBlank(publishServiceManage.getJarUrl())) {
            log.error(String.format("消息消费程序JarUrl为空,message:%s,messageId:%s", message, messageId));
            return;
        }
        try {
            log.info(String.format("开始执行程序,message:%s,messageId:%s", message, messageId));
            /**
             * 开始操作数据并下载发布程序
             * cp /usr/local/posService/Adore-pos-service-1.0.0-SNAPSHOT.jar /usr/local/posService/backJar/Adore-pos-service-1.0.2-SNAPSHOT.jar
             * ps -ef | grep Adore-pos-service-1.0.0-SNAPSHOT.jar | grep -v grep | awk '{print $2}' | xargs kill -9
             * kill -9 `ps -ef | grep Adore-pos-service-1.0.0-SNAPSHOT.jar | grep -v grep | awk '{print $2}'`
             * */
            //1.备份原来的jar包
            String cpJar = "cp " + publishServiceManage.getJarUrl() + "/" + publishServiceManage.getJarName() + " " + publishServiceManage.getJarUrl() + "/backJar/" + DateUtils.dateTimeNow() + "-" + publishServiceManage.getJarName();
            //2.进入目录
            String cdJarUrl = "cd " + publishServiceManage.getJarUrl();
            //3.杀死原来的进程
            String killJar = "ps -ef | grep " + publishServiceManage.getJarName() + " | grep -v grep | awk '{print $2}' | xargs kill -9";
            //4.删除原来jar包
            String rmJarUrl = "rm -rf " + publishServiceManage.getJarName();
            //5.下载最新的jar包
            String wgetJarUrl = "wget " + publishServiceManage.getOssurl();
            //6.启动jar包程序
            String start = "nohup java -jar " + publishServiceManage.getJarName() + " >/dev/null 2>&1 &";
            //7.拼接字符串
            String shell = cpJar + ";" + cdJarUrl + ";" + killJar + ";" + rmJarUrl + ";" + wgetJarUrl + ";" + start;
            //8.输出打印进入到jar包目录命令
            log.info(shell);
            Process JarUrlProc = Runtime.getRuntime().exec(new String[]{"/bin/sh", "-c", shell});
            BufferedReader JarUrlProcReader = new BufferedReader(new InputStreamReader(JarUrlProc.getInputStream()));
            String JarUrlProcStr;
            //读取数据
            while ((JarUrlProcStr = JarUrlProcReader.readLine()) != null) {
                //打印结果
                log.info("cdJarUrl" + JarUrlProcStr);
            }
            JarUrlProc.waitFor();
            JarUrlProcReader.close();
            log.info(String.format("结束执行程序,message:%s,messageId:%s", message, messageId));
        } catch (Exception e) {
            log.error(e);
        }
    }
}

(1) 因为linux 命令中有使用到管道所以加入了"/bin/sh", "-c"
(2)Runtime.getRuntime().exec()批量执行linux 命令需要每个命令用 隔开

前端界面

前端界面只是一个点击操作,点击之后会发送mq消息,发布程序消费,执行linux命令,在最后收集日志到前端日志界面。


publish.jpg

其中ossUrl:后期会做一个jar包上传oss的功能

感谢:
https://blog.csdn.net/u012995856/article/details/78375581

后期改进

因为现在的只是 V 1.0版本,后期后将linux写入到shell 脚本中,最后只需调用执行shell脚本就可以。

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