lookcar.java

java web开发宝典源代码

package com.yxq.servlet;

import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.yxq.bean.SingleObject;

public class LookCar extends HttpServlet {
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request,response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		HttpSession session=request.getSession();
		Map carmap=(HashMap)session.getAttribute("carmap");
		if(carmap!=null&&carmap.size()!=0){
			Set keys=carmap.keySet();
			Iterator it=keys.iterator();
			int i=0;
			while(it.hasNext()){
				i++;
				Object key=it.next();
				SingleObject carsingle=(SingleObject)(carmap.get(key));
				carsingle.setMessage("");
				carmap.put(key,carsingle);				
			}
			session.setAttribute("carmap",carmap);
		}
		RequestDispatcher rd=request.getRequestDispatcher("/templet.jsp");
		rd.forward(request,response);		
	}
}