C# Cookie工具类

/// <summary>

        /// Cookies赋值

        /// </summary>

        /// <param name="strName">主键</param>

        /// <param name="strValue">键值</param>

        /// <param name="strDay">有效天数</param>

        /// <returns></returns>

        public bool setCookie(string strName, string strValue, int strDay)

        {

            try

            {

                HttpCookie Cookie = new HttpCookie(strName);

                //Cookie.Domain = ".xxx.com";//当要跨域名访问的时候,给cookie指定域名即可,格式为.xxx.com

                Cookie.Expires = DateTime.Now.AddDays(strDay);

                Cookie.Value = strValue;

                System.Web.HttpContext.Current.Response.Cookies.Add(Cookie);

                return true;

            }

            catch

            {

                return false;

            }

        }

        /// <summary>

        /// 读取Cookies

        /// </summary>

        /// <param name="strName">主键</param>

        /// <returns></returns>

        public string getCookie(string strName)

        {

            HttpCookie Cookie = System.Web.HttpContext.Current.Request.Cookies[strName];

            if (Cookie != null)

            {

                return Cookie.Value.ToString();

            }

            else

            {

                return null;

            }

        }

        /// <summary>

        /// 删除Cookies

        /// </summary>

        /// <param name="strName">主键</param>

        /// <returns></returns>

        public bool delCookie(string strName)

        {

            try

            {

                HttpCookie Cookie = new HttpCookie(strName);

                //Cookie.Domain = ".xxx.com";//当要跨域名访问的时候,给cookie指定域名即可,格式为.xxx.com

                Cookie.Expires = DateTime.Now.AddDays(-1);

                System.Web.HttpContext.Current.Response.Cookies.Add(Cookie);

                return true;

            }

            catch

            {

                return false;

            }

        }

    }

}