<%@page import="java.net.URLEncoder"%><%@ page language="java" contentType="text/html; charset=UTF-8"? ? pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body> <%? request.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); String username="",password=""; //cookie //首先判斷用戶是否選擇了登陸狀態 String[] isUserCookies=request.getParameterValues("isUseCookie"); if(isUserCookies!=null&&isUserCookies.length>0) { //吧用戶名和密碼保存在cookie對象里面 username=URLEncoder.encode(request.getParameter("username"), "UTF-8"); password=URLEncoder.encode(request.getParameter("password"),"UTF-8"); Cookie usernameCookie=new Cookie("username",username); Cookie passwordCookie=new Cookie("password",password); usernameCookie.setMaxAge(864000);//設置最大生存期限為10天 passwordCookie.setMaxAge(864000); response.addCookie(usernameCookie); response.addCookie(passwordCookie); } else { Cookie[] cookies=request.getCookies(); if(cookies!=null&&cookies.length>0) { for(Cookie c:cookies) { if(c.getName().equals("username")||c.getName().equals("password")){ c.setMaxAge(0);//設置cookie立即失效 response.addCookie(c); } } } } %> <a href="users.jsp">查看用戶狀態</a></body></html>
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