日志顯示為：
Looking up handler method for path /***
Did not find handler method for [/***]
No mapping found for HTTP request with URI [/springMVC/***] in DispatcherServlet with name 'spring'
Successfully completed request
網上很多人的解決方法都無效，最后才找到一個解決方法：
applicationContext.xml 里面不能<context:component-scan /> controller的包,
就是寫了的話,那也得把controller的包用context:exclude-filter 去掉
<!-- 掃描注解對象 -->
<context:component-scan base-package="org.fgq.study">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
https://www.oschina.net/question/1015582_125252?sort=default&p=2
更深層的原因未知。spring文檔中沒有找到線索。