IntelliJ IDEA是跨平台的IDE，可在Windows，macOS和Linux操作系统上提供一致的体验。

IntelliJ IDEA在以下版本中可用：

1. Community Edition是免费的且开源的，根据Apache 2.0获得许可。它提供了JVM和Android开发的所有基本功能。
2. IntelliJ IDEA Ultimate是商业版本，试用期为30天。它提供了用于Web和企业开发的其他工具和功能。

官网：https://www.jetbrains.com/idea/

踩坑 ：安装完成之后无法启动

1、打开IDEA安装目录bin文件夹下的.bat文件 末尾加pause 保存后运行，查看错误信息

2、检查jdk环境变量，修改 bin目录下idea.exe.vmoptions 和idea64.exe.vmoptions

3、如何破解 在dea.exe.vmoptions 和idea64.exe.vmoptions末尾加

-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.4\bin\JetbrainsIdesCrack-4.2.jar

4、打开IDEA进入HELP-regisist

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配置Idea maven方法

https://www.cnblogs.com/telwanggs/p/10820701.html

配置完成打开项目 点击控制台中的 Add as Maven Project 安装当前所需依赖 启动项目即可

踩坑：打开idea却没有maven 窗口 无法添加依赖包

检查环境变量是否配置，控制台输入 mvn -version 查看是否配置成功

踩坑：关于maven本地仓库

可以使用自带的本地m2仓库，可以在maven的config文件中配置

踩坑：spring boot 启动报错：找不到或无法加载主类

maven clean以后，报这个错，也就是说经过clean操作把class文件都干掉了，再次build(编译)就行了