.net中如何使用cookie

比如建立一个名为aspcn，值为灌水小鱼的cookie
HttpCookie cookie = new HttpCookie["aspcn"]; cookie.Value = "灌水小鱼"; Response.AppendCookie(cookie);
取出Cookie值也很简单
HttpCookie cookie = Request.Cookies["aspcn"]; cookieValue = cookie.Value;
在一个Cookie中储存多个信息，那也没有问题。比如在名为aspcn的cookie下加多个信息
HttpCookie cookie = new HttpCookie("aspcn"); cookie.Values.Add("webmaster","灌水小鱼"); cookie.Values.Add("writer","beige"); cookie.Values.Add("LinkColor","blue"); Response.AppendCookie(cookie);
取出信息也一样简单
HttpCookie cookie = Request.Cookies["aspcn"]; value1 = cookies.Values["webmaster"]; value2 = cookies.Values["writer"];

HttpCookie cookie = Request.Cookies[strKey]; if(null == cookie) { //cookie不存在 } 先看看有没有写入客户端

cookie=new HttpCookie("www.xx.org"); cookie.Values.Add("UserType", ddlLoginType.SelectedItem.Value); cookie.Values.Add("UserName", tbUserName.Text.Trim()); cookie.Values.Add("Password", tbPassword.Text.Trim()); cookie.Values.Add("Access",i.ToString()); Response.AppendCookie(cookie); //检查COOKIE是否已经写入浏览器 cookie = Request.Cookies["www.xx.org"]; if(cookie==null||cookie.ToString()=="") { //用session存储 LoginUser loginUser = new LoginUser(); loginUser.UserName = tbUserName.Text.Trim(); loginUser.Password = tbPassword.Text.Trim(); loginUser.UserType = ddlLoginType.SelectedItem.Value; loginUser.Access = i; Session["www.xx.org"] = loginUser; }
我以前的代码，没有问题的

>>>页面仅仅是刷新了一次
if you debug, does the code get executed at all? by the way, are you doing any validation?
>>>然后是删除
>>>Response.Cookies.Remove("MyCookie"); >>>Response.Redirect("....") // 转向 
>>>然后是删除
HttpCookie cookie = Request.Cookies["myinfo"];         if (cookie != null)         {             cookie.Expires = System.DateTime.Now.AddDays(-1);         }         Response.Cookies.Add(cookie);