asp.net web 简单使用cookie

 1 public partial class Login:System.Web.UI.pag
 2 {
 3     public string LoginUserName{get;set;}
 4     protected void Page_Load(object sendet,EventArgs e)
 5     {
 6          if(IsPostBack)
 7          {
 8                string userName=Request.Form["txtName"];
 9                Response.Cookies["userName"].Value=Server.UrlEncode(UserName);
10                Response.Cookies["userName"].Expires=DateTime.Now.AddDays(7);
11          }
12          else
13          {
14               string name=Server.urlDecode(Request.Cookies["userName"].Value);
15               LoginUserName=name;
16               Response.Cookies["userName"].Value=Server.urlEncode(name);
17               Response.Cookies["userName"].Expires=DateTime.Now.AddDays(7);//设置过期时间
18          }
19     }
20 }

 1 //另外一种创建的cookie
 2 HttpCookie cookie=new HttpCookie("cp4","ssss");
 3 cookie.Expires=DateTime.Now.AddDays(3);
 4 Response.Cookies.Add(cookie);
 5 
 6 //Cookie的多值使用
 7 
 8 Response.Cookies["userInfo"]["userName"]="patrick";
 9 Response.Cookies["userInfo"]["lastVisit"]=DateTime.Now.ToString();
10 Response.Cookies["userInfo"].Expries=DateTime.Now.AddDays(1);