swagger2和对应的springboot版本问题

springboot 集成Swagger2报错

访问浏览器出现如下错误：

Whitelabel Error Page

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

Wed Mar 30 16:00:20 CST 2022

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

 

 

控制台出现如下错误：

Failed to start bean ‘documentationPluginsBootstrapper’; nested exception is java.lang.NullPointerException

可能是springboot版本太高，对于swagger2.9.2，对应的springboot版本最好在2.5及以下。