JAVA热启动插件Jrebel

柔光的暖阳◎ 2022-05-26 03:17 319阅读 0赞

方案一：Jrebel(推荐)  
IDE(STS或Idea)安装Jrebel插件  
![title][]

下面介绍如何获取Jrebel的激活码，注意Jrebel激活码使用时会连接服务器实时监测，一个账号只允许一个终端使用；  
1. 打开[https://my.jrebel.com][https_my.jrebel.com](需要翻墙)，需要第三方facebook或twitter账号登录后进行授权  
![title][title 1]  
2. 需要填写个人资料(手机什么的可以瞎填目前没有做校验)；  
![title][title 2]  
![title][title 3]  
3. 注册成功后就可以获取到免费的激活码  
![title][title 4]  
4. 输入IDE->Jrebel->Activation code完成激活；

使用Jrebel热启动：  
1. 如图：  
![title][title 5]  
2. 启动信息：

Connected to the target VM, address: '127.0.0.1:58146', transport: 'socket'
    2017-11-02 09:52:46 JRebel: Directory '/Users/Robert/gitlab/terra-service/service/target/classes' will be monitored for changes.
    2017-11-02 09:52:46 JRebel: Contacting myJRebel server ..
    2017-11-02 09:52:51 JRebel: 
    2017-11-02 09:52:51 JRebel: A newer version '7.1.1' is available for download 
    2017-11-02 09:52:51 JRebel: from http://zeroturnaround.com/software/jrebel/download/
    2017-11-02 09:52:51 JRebel: 
    2017-11-02 09:52:56 JRebel:  Starting logging to file: /Users/Robert/.jrebel/jrebel.log
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  #############################################################
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  JRebel Agent 7.1.0 (201709271413)
    2017-11-02 09:52:56 JRebel:  (c) Copyright ZeroTurnaround AS, Estonia, Tartu.
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  Over the last 30 days JRebel prevented
    2017-11-02 09:52:56 JRebel:  at least 50 redeploys/restarts saving you about 2 hours.
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  Over the last 180 days JRebel prevented
    2017-11-02 09:52:56 JRebel:  at least 569 redeploys/restarts saving you about 23.1 hours.
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  **Licensed to Youbao Luo (using myJRebel)**.
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  
    2017-11-02 09:52:56 JRebel:  #############################################################
    2017-11-02 09:52:56 JRebel:  
    09:53:04,217 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]

注意：idea修改源码后热部署前需要触发重新编译快捷键ctrl+f9

方案二：spring-loaded  
spring-loaded有两种集成方式  
1. spring-loaded热插拔设置，首先下载springloaded然后配置JVM启动参数  
Run As->Run Configurations…->Java Application->->Arguments(VM arguments)  
add:  
\-javaagent:/Users/Robert/.springloaded/springloaded-1.2.6.RELEASE.jar -noverify

1.  使用maven pluin，然后使用 mvn spring-boot:run启动工程

<plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <dependencies>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>springloaded</artifactId>
                    <version>1.2.3.RELEASE</version>
                </dependency>
            </dependencies>
        </plugin>
    </plugins>

个人推荐使用Jrebel，功能比springloaded更强大也更稳定，支持热部署class和部分配置文件及XML(具体可以自行尝试)，最新版的Jrebel可能不支持免费的注册码

[title]: /images/20220526/42693c695e6243b695ae90abf705ba6b.png
[https_my.jrebel.com]: https://my.jrebel.com
[title 1]: /images/20220526/72222667d7dd4db89d5f8667f245c421.png
[title 2]: /images/20220526/68eea513571c4004ae24e37a3e7118c1.png
[title 3]: /images/20220526/73c9f4495180451f8b0dad7e88159ea7.png
[title 4]: /images/20220526/9280f0a203164851b06aef485fa1af0a.png
[title 5]: /images/20220526/a1d6ee9fe9b645afa40ee4c88c3dde0d.png