IDEA中Maven项目需要设置JDK的地方
1.settings
settings>Build,Exception,Deployment>Java Compiler>Per-modeule bytecode version
2.Project Structure
Project Structure>Project SDK Project Structure>Project language level Project Structure>Modules>{your project}>Sources>Language Level Project Structure>Modules>{your project}>Sources>Dependency>Module SDK
3.Run/Debug configuration
Run/Debug configuration>Maven>{your project}>Runner>JRE