Cookie[] cookies = request.getCookies(); //從request中獲的Cookie對象的集合
for(int i = 0;i < cookies.length;i++){ //遍歷cookie對象集合
if(cookies[i].getName().equals("mrCookie")){//若是cookie對象的名稱是mrCookie
user = URLDecoder.decode(cookies[i].getValue().split("#")[0]);//獲取用戶名
date = cookies[i].getValue().split("#")[1];//獲取註冊時間
if("".equals(user)&& "".equals(date)){//若是沒有註冊
<form action="deal_Cookie.jsp" method="post">
請輸入姓名:<input type="text" name = "user" value="">
<input type="submit" value="肯定">
歡迎[<b><%=user %></b>]再次光臨<br>
request.setCharacterEncoding("UTF-8");
String user = URLEncoder.encode(request.getParameter("user"),"UTF-8"); //獲取用戶名
Cookie cookie = new Cookie("mrCookie",user + "#" + new ;
cookie.setMaxAge(60 * 60 * 24 * 30); //設置cookie有效期爲30天
response.addCookie(cookie);//保存cookie