c# 读写cookie 通用函数

#region 读取或写入cookie
        ///
        /// 写cookie值
        ///
        /// 名称
        /// 值
        public static void WriteCookie(string strName, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = UrlEncode(strValue);
            HttpContext.Current.Response.AppendCookie(cookie);
        }
 
        ///
        /// 写cookie值
        ///
        /// 名称
        /// 值
        public static void WriteCookie(string strName, string key, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = UrlEncode(strValue);
            HttpContext.Current.Response.AppendCookie(cookie);
        }
 
        ///
        /// 写cookie值
        ///
        /// 名称
        /// 值
        public static void WriteCookie(string strName, string key, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = UrlEncode(strValue);
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }
 
        ///
        /// 写cookie值
        ///
        /// 名称
        /// 值
        /// 过期时间(分钟)
        public static void WriteCookie(string strName, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = UrlEncode(strValue);
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }
 
        ///
        /// 读cookie值
        ///
        /// 名称
        /// cookie值
        public static string GetCookie(string strName)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)
                return UrlDecode(HttpContext.Current.Request.Cookies[strName].Value.ToString());
            return "";
        }
 
        ///
        /// 读cookie值
        ///
        /// 名称
        /// cookie值
        public static string GetCookie(string strName, string key)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)
                return UrlDecode(HttpContext.Current.Request.Cookies[strName][key].ToString());
 
            return "";
        }
        #endregion
原文地址:https://www.cnblogs.com/choii/p/5782109.html