IDEA maven 项目，无法解析任何pom中的依赖
如图：
cannot resolve .....
ref: https://*.com/questions/15727356/intellij-idea-cannot-resolve-anything-in-maven
解决方法：
mvn -U idea:idea
如图：
cannot resolve .....
ref: https://*.com/questions/15727356/intellij-idea-cannot-resolve-anything-in-maven
解决方法：
mvn -U idea:idea