servlet和struts并存问题

在web.xml文件中修改配置（struts.xml文件中配置了<constant name="struts.action.extension" value="do"></constant>（配置action的访问路径为.do的形式））

 <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>*.jsp</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>*.do</url-pattern>
  </filter-mapping>

有待补充