在struts-config.properties中加入
<controller nocache="true"/>应该就能解决了struts-config>
  <form-beans />
  <global-exceptions />
  <global-forwards />
  <action-mappings >
    <action
      path="/download"
      type="com.zxc.struts.action.downloadAction"
      cancellable="true" >
</action>
    <action
      path="/pagination"
      type="com.zxc.struts.action.PaginationAction"
      cancellable="true" >
      <forward name="success" path="/pagesort.jsp"/>
      </action>
  </action-mappings>
  <controller nocache="true"/>
  <message-resources parameter="com.zxc.struts.ApplicationResources"/>
</struts-config>