IDEA设置jdk和maven

File->settings->Project Structure-Project
File->settings->Build,Execution,Deployment->Build Tools->Maven

上述设置只是针对单个工程，新建工程又需要设置，以下是设置全局方式

File->other settings->Default Project Structure-Project
File->other settings->Default settings->Build,Execution,Deployment->Build Tools->Maven