baseservlet.java

来自「企业进销存源码」· Java 代码 · 共 58 行

package com.web.servlet;

import java.io.IOException;
import javax.servlet.ServletException;

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

import com.web.util.PageUrlManage;

/**
 * @version 	1.0
 * @author
 */
public abstract class BaseServlet extends HttpServlet {
	protected PageUrlManage pManage = null;
	protected String successUrl = "";
	protected String failureUrl = "";
	protected String messageUrl = "";
	/**
	* @see javax.servlet.http.HttpServlet#void (javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	*/
	public void doGet(HttpServletRequest req, HttpServletResponse resp)
		throws ServletException, IOException {

	}

	/**
	* @see javax.servlet.http.HttpServlet#void (javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	*/
	public void doPost(HttpServletRequest req, HttpServletResponse resp)
		throws ServletException, IOException {
		pManage = new PageUrlManage();
		
		successUrl = "/message/success.jsp";
		failureUrl = "/message/failure.jsp";
		messageUrl = "/message/message.jsp";
		
		try{
			//这一句就是转向具体的方法，下面就由扩展的子函数写这个方法	
			work(req,resp);			
			req.getSession().setAttribute("PAGE_MANAGE",pManage);
			resp.sendRedirect(req.getContextPath()+pManage.getCurrentPageUrl());
			
		}catch(Exception ex){
			req.getSession().setAttribute("PAGE_MANAGE",pManage);
			resp.sendRedirect(req.getContextPath()+pManage.getCurrentPageUrl());
			
		}		
	}	
	//业务执行方法
	public abstract void work(
		HttpServletRequest request,
		HttpServletResponse response)
		throws IOException, ServletException,Exception;
}