一、IntelliJ IDEA 激活码

下边这个 IDEA 激活码失效了的话，请关注微信公众号：Java团长，然后发送“ 激活码 ”即可获取最新且有效的。

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二、可以一直免费使用，激活IDEA没有那么难

1. Idea配置热部署devtools

2. 在pom.xml中引入了需要热部署的项目

3. 导入到父项目的pom.xml文件中

4. 在demo01.class文件中写入输出语句

5. 启动后，在浏览器中输入以前编辑的映射路径