C#方式操作Cookie

　　1、设置cookie

　　   public static void SetCookie(string TokenValue)
        {
            HttpCookie tokencookie = new HttpCookie("localtoken");
            tokencookie.Value = TokenValue;
　　　　　　 //tokencookie.Values.Set("UserID", user.Key);
            var domain = WebConfigHelper.GetWebConfigValue("CookiesDomain");
            if (!string.IsNullOrWhiteSpace(domain))
            {
                tokencookie.Domain = domain;
            }
            HttpContext.Current.Response.Cookies.Add(tokencookie);
            return;
        }

　　2、读取cookie　　　

        public static string GetCookie()
        {
            var cookie = HttpContext.Current.Request.Cookies["localtoken"];
            if (cookie != null)
                return cookie.Value;
            return string.Empty;
        }

　　3、移出cookie，就是设置cookie过期

        public static void RemoveToken(string UserName)
        {
            if (TokenStore != "cookies")
                RedisHelper.Remove(ssoPrefix + UserName);

            var cookie = HttpContext.Current.Request.Cookies["localtoken"];
            if (cookie != null)
            {
                var domain = WebConfigHelper.GetWebConfigValue("CookiesDomain");
                if (!string.IsNullOrWhiteSpace(domain))
                {
                    cookie.Domain = domain;
                }
                cookie.Expires = DateTime.Now.AddDays(-1);
            }
            return;
        }