using System;

using System.Web;

namespace ConsoleApplication5

{

    /// <summary>

    /// Cookie 助手

    /// </summary>

    public sealed class CookieHelper

    {

        /// <summary>

        /// 添加一个 Cookie

        /// </summary>

        /// <param name="name">名</param>

        /// <param name="value">值</param>

        public static void Add(string name, string value)

        {

            var cookie = new HttpCookie(name, value);

            HttpContext.Current.Response.Cookies.Add(cookie);

        }

        /// <summary>

        /// 添加一个 Cookie

        /// </summary>

        /// <param name="name">名</param>

        /// <param name="value">值</param>

        /// <param name="expires">过期日期和时间</param>

        public static void Add(string name, string value, DateTime expires)

        {

            var cookie = new HttpCookie(name, value)

            {

                Expires = expires

            };

            HttpContext.Current.Response.Cookies.Add(cookie);

        }

        /// <summary>

        /// 获取 Cookie 值

        /// </summary>

        /// <param name="name">名</param>

        /// <returns></returns>

        public static string Get(string name)

        {

            var cookie = HttpContext.Current.Request.Cookies[name];

            return cookie == null ? string.Empty : cookie.Value;

        }

    }

}