struts2配置result type="json"

 

<result name="success" type="json">
    <param name="root">annex</param> <!--annex是action中成员属性private ImsAnnex annex ; ..get...set...-->
    <param name="noCache">true</param>
    <param name="ignoreHierarchy">false</param> <!--ignoreHierarchy=true则annex不包含父类的属性-->
   </result>