struts1.3中使用DispatchAction的一个问题

最近做项目发现我们公司的项目是用struts1写的，在多方百度下，总有理解了struts1.3的DispatchAction的用法

一：struts.xml文件的配置

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
"http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
<form-beans>
<form-bean name="messageBoardFrom"
type="com.jobe23.struts.form.message.MessageBoardForm">
</form-bean>
</form-beans>
<action-mappings>
<action path="/zc/graduate/index"
type="com.jobe23.struts.action.message.MessageBoardAction" name="messageBoardFrom" parameter="action">
<forward name="successMsg" path="/zc/graduate/index.jsp" />
<forward name="retention" path="/zc/graduate/retention.jsp" />
</action>

</action-mappings>
</struts-config>

二：action的配置

package com.jobe23.struts.action.message;

import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

import com.jobe23.dao.message.MessageBoardDAO;
import com.jobe23.entity.message.MessageBoard;

/**
* 专场留言
* @author clyao
* @param mapping
* @param form
* @param request
* @param response
* @return
* @throws Exception
*/
public class MessageBoardAction extends DispatchAction {

public ActionForward message(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
MessageBoard mb = new MessageBoard();
MessageBoardDAO msgdao = new MessageBoardDAO();
List<MessageBoard> msgList = new ArrayList<MessageBoard>();
String mobile = request.getParameter("mobile");
String msgContent = request.getParameter("msgContent");
String specialTitle = request.getParameter("specialTitle");
mb.setMobile(mobile);
mb.setMsgContent(msgContent);
mb.setSpecialTitle(specialTitle);
try {
if(mobile==null || mobile.equals(null)){

}else{
msgdao.save(mb);
}
msgList = msgdao.findAll();
request.setAttribute("msgList", hideMobile(msgList));
} catch (Exception e) {
e.printStackTrace();
}
return mapping.findForward("successMsg");
}
}

特别注意：这里的类必须继承DispatchAction，否则无法跳转到对应的方法

三：测试一下
http://localhost:8080/zc/graduate/index.do?action=message
它就会执行对应的message方法

文章可以写得不够完整，如何疑问，请留言