新手求助!关于Cookie的问题!

[yuanx0211]

在实习中做得一个购物网站项目 ,我用cookie保存用户登录的用户信息和购物车中信息,但是2个cookie分别用2种方法生成,
发现完成购物后清空购物车会把 用户登入的信息也清空掉, 具体不知是什么原因.特来求教!

我觉得是这里有问题,请大家来帮我看看:
用户信息保存的Cookie:
Response.Cookies["UserLogin"]["uname"] = this.username.Value.Trim();
Response.Cookies["UserLogin"]["uid"] = tuser.UserId.ToString();
Response.Cookies["UserLogin"].Expires = DateTime.Now.AddHours(1);
存入用户名和数据库取出的用户编号;

购物车保存的信息
private void UpdateCarInfo(string newCarInfoString)
{
cookieCar = new HttpCookie(cookie_car, newCarInfoString);
cookieCar.Expires = DateTime.Now.AddHours(1);

HttpContext.Current.Response.Cookies.Remove(cookie_car);
HttpContext.Current.Response.Cookies.Add(cookieCar);
}
保存 购物车传来的 用户编号和数量

清空购物车类
public void Clear()
{

UpdateCarInfo("");
}

不知为什么清空购物车后 连用户登入的信息也清除了,确切的说是 UserLogin 还在但他的2个子值uname和uid 不见了

[别样苍茫]

private void UpdateCarInfo(string newCarInfoString)
{
cookieCar = new HttpCookie(cookie_car, newCarInfoString);
cookieCar.Expires = DateTime.Now.AddHours(1);

HttpContext.Current.Response.Cookies.Remove(cookie_car);
HttpContext.Current.Response.Cookies.Add(cookieCar);
}



每个COOK应该对应不同的name 和 value

cookieName.Expires = DateTime.Now.AddHours(-24); 可以用这种方式清除

详细可以参考示例：

asp.net 删除cookie

HttpCookie cookie1 = Request.Cookies["PPUser"];
cookie1.Expires = DateTime.Today.AddDays(-10);
cookie1.Domain = "huo7.com";
Response.Cookies.Add(cookie1);

asp.net 添加cookie

   HttpCookie cookie = new HttpCookie("PPUser");
   cookie.Values.Add("UserName",HttpUtility.UrlEncode(userName));
   cookie.Values.Add("Pwd",HttpUtility.UrlEncode(pwd));
   cookie.Expires = DateTime.Now.AddMinutes(expires);
   cookie.Path = "/";
   cookie.Domain = "huo7.com";
   Response.AppendCookie(cookie);

[harderLi]

楼上很详细

[happyboyxq]

路过~~~~~~~~~~

[子夜__]

Cookie都有name和value
习惯购物车用session

[足球中国]

[Quote=引用 1 楼 luqc1985 的回复:]
private void UpdateCarInfo(string newCarInfoString)
{
cookieCar = new HttpCookie(cookie_car, newCarInfoString);
cookieCar.Expires = DateTime.Now.AddHours(1);

HttpContext.Current.Respo……
[/Quote]不错。

[wuyq11]

cookie操作
System.Web.HttpCookie newcookie = new HttpCookie("user");
newcookie.Values["username"] = "";
newcookie.Values["password"] = "";
newcookie.Expires = DateTime.Now.AddDays(15);
Response.AppendCookie(newcookie);


System.Web.HttpCookie cookie = Request.Cookies["user"];
if (cookie != null)
{
cookie.Expires = DateTime.Now.AddDays(-1);
Response.Cookies.Set(cookie);
}

HttpCookie cookie = System.Web.HttpContext.Current.Request.Cookies[cookiename];
if (cookie != null)
{
cookie.Values.Clear();
SetUserCookieExpireTime(cookiename, -1);
cookie.Domain = _domain;
System.Web.HttpContext.Current.Response.Cookies.Set(cookie);
}
public static void SetUserCookieExpireTime(string key, int days)
{
System.Web.HttpContext.Current.Response.Cookies[key].Domain = _domain;
System.Web.HttpContext.Current.Response.Cookies[key].Path = _cookiepath;
System.Web.HttpContext.Current.Response.Cookies[key].Expires = DateTime.Now.AddDays(days);
}
购物车使用hashtable等保存