Your ApplicationContext is unlikely tostart due to a @ComponentScan of the defau

一、错误提示：

Your ApplicationContext is unlikely tostart due to a @ComponentScan of the default package... 

Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception

二、原因：

　　是因为Application.java 文件不能直接放在main/java文件夹下，必须要建一个包把他放进去