package com.chensi.cookie;

import java.io.IOException;

import java.util.Date;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

 * 使用Cookie显示上一次登录的时间

 * @author zhl

 *

 */

@WebServlet("/CookieDemo1")

public class CookieDemo1 extends HttpServlet {

    private static final long serialVersionUID = 1L;

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8"); //处理乱码

        Cookie[] cookies = request.getCookies();

        if(cookies!=null){

            for (int i = 0; i < cookies.length; i++) {

                if("lastLoginTime".equals(cookies[i].getName())){

                    response.getWriter().write("您上次登陆的时间是："+cookies[i].getValue());

                }

            }

        }

        //将登陆的时间存入到cookie中

        Cookie cookie = new Cookie("lastLoginTime",new Date().toLocaleString());

        response.addCookie(cookie);

    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        doGet(request, response);

    }

}