No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'mvc'

No mapping found for HTTP request with URI 出现这个问题的原因是在web.xml中配置错了，如：  <servlet>  <servlet-name>springMVCDispatcherServlet</servlet-name>  <servlet-class>org.springframework.web.servlet.DispatcherServ

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