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

代码写完 发现一切都没用错 （毕竟没写什么东西只是单独配了一个框架） 却发现无论如何都无法启动 访问界面就报错

 

原因是： 不能直接点击run方法启动 

可以使用mvn命令启动 

his application has no explicit mapping for /error, so you are seeing this as a fallback._无法启动_02

也可以使用springboot插件启动

his application has no explicit mapping for /error, so you are seeing this as a fallback._springboot_03