Web.xml 错误或异常页面配置

     <error-page> 

         <error-code>404</error-code> 

         <location>/error/hello?i=1</location> 

     </error-page> 

     <error-page> 

         <error-code>500</error-code> 

         <location>/WEB-INF/error/500.jsp</location> 

     </error-page> 

     <error-page> 

         <exception-type>java.lang.Exception</exception-type> 

         <location>/WEB-INF/exception/error.jsp</location> 

     </error-page>