??????springMVC??????п???????:'????: No mapping found for HTTP request with URI [/WEB-INF/pages/helloWorld.jsp] in DispatcherServlet with name 'dispatcher''???????м????????
????1.????ж????jsp??
????2.web.xml???????????????
????<servlet>
????<servlet-name>dispatcher</servlet-name>
????<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
????<load-on-startup>1</load-on-startup>
????</servlet>
????<servlet-mapping>
????<servlet-name>dispatcher</servlet-name>
????<url-pattern>/*</url-pattern>
????</servlet-mapping>
??????? url-pattern???????'/*'????????'/'????'*.html'??'*.do'?????????'/*'?????????????????????