struts1.3中使用DispatchAction的一个问题

近期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的使用方法

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，否则无法跳转到相应的方法

三：測试一下

http://localhost:8080/zc/graduate/index.do?

action=message

它就会运行相应的message方法

文章能够写得不够完整。怎样疑问，请留言