： 自定义的 Action 必须继承 DispatchAction 而不能继承  Action

public class UserAction extends DispatchAction

:  Action 中不能有 execute(......)  方法 ， 否则将始终调用该方法：

： struts-config 配置文件中应该增加如下配置：

<action 。。。。parameter="method" > </action>

======================================

<action path="/user"

   type="org.springframework.web.struts.DelegatingActionProxy" name="user"

   parameter="method" scope="request">

   <forward name="add_success" path="list.jsp"></forward>

   <forward name="list" path="list.jsp"></forward>

</action>

=======================================

: 通过 path.do?metho=xxx 的形式调用Action中的方法

public class MyProductForm extends ActionForm{

    private int id;

    private String goodsName;

    private String goodsNo;

    private String goodsType;

    private int[] ids = new int[0];

    /** default constructor */

    public MyProductForm() {

    }

    public MyProductForm(int id) {

        this.id = id;

    }

    public ActionErrors validate(ActionMapping mapping,

            HttpServletRequest request) {

        // TODO Auto-generated method stub

        return null;

    }

    /**

     * Method reset

     * @param mapping

     * @param request

     */

    public void reset(ActionMapping mapping, HttpServletRequest request) {

        // TODO Auto-generated method stub

    }
　　//........get set.........

}

<form-bean name="myProductForm" type="com.sunmo.test.product.MyProductForm" />

response.setContentType("application/json;charset=UTF-8");

response.setCharacterEncoding("UTF-8");

String result = "{'success': true, 'msg': '操作成功'}";

PrintWriter pw = null;

try {

    pw = response.getWriter();

    pw.write(result);

    pw.flush();

} catch (IOException e) {

    e.printStackTrace();

}  

return null;