一、全局Maven配置
IDEA启动页面===>Customize===>All settings===>Build,Execution,Deployment===>Build Tools===>Maven
二、全局编码配置
IDEA启动页面===>Customize===>All settings===>Editor===>File Encodings
三、全局激活DevTools配置
IDEA启动页面===>Customize===>All settings===>Build,Execution,Deployment===>Compiler
四、全局Java编译版本配置
IDEA启动页面===>Customize===>All settings===>Build,Execution,Deployment===>Compiler===>Java Compiler
