Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Fri Sep 06 21:41:26 CST 2019
There was an unexpected error (type=Not Found, status=404).
No message available
導致的原因就是主方法放的包，位置有問題，我百度很多都是沒有用，搞了兩天才想到位置問題
放到上級目錄才是對的
