spring boot:This application has no explicit mapping for

详细错误信息：Whitelabel Error Page

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

Fri Aug 18 11:21:27 CST 2017

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

No message available

参考教程：blog.csdn.net/forezp/article/details/61472783

刚进行到，运行 Application的main()，浏览器输入网址：localhost:8080/springboot/hi

出现上错误，百度解决方案都是：新建的controller类层次问题值得参考，但是我怎么改还是如上。

最后改了 网址栏 浏览器输入网址：localhost:8080/hi （去掉springboot）,即可访问。

未完。。