完整错误：
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Sat May 29 20:07:50 CST 2021
There was an unexpected error (type=Not Found, status=404).

运行时出现了这个错误，认真检查后发现路径填错了。@RequestMapping(“xxx”) ，实际访问的路径与”xxx”要符合。


地址修改后正常