springboot创建时的Whitelabel Error Page

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Tue Feb 23 12:24:05 CST 2021

There was an unexpected error (type=Not Found, status=404).

 

出现这种原因的情况很多，就是访问不到资源，而我遇到的这种情况的原因时因为我把Controller类放到了往外一层包内导致。