//声名一个数据集合

         var listString = new List<string>() { "a", "b", "c" };

         //缓存key

         string key = "cokey";

         //获取实例

         var cookiesManager = CookiesManager<List<string>>.GetInstance();

         //插入缓存

         cookiesManager.Add(key, listString, cookiesManager.Minutes * );//过期30分钟

         //add有其它重载 上面是最基本的

         //获取

         List<string> cookiesList = cookiesManager[key];

         //其它方法

         cookiesManager.ContainsKey(key);

         cookiesManager.Remove(key);//删除

         cookiesManager.RemoveAll(c => c.Contains("sales_"));//删除key包含sales_的cookies

         cookiesManager.GetAllKey();//获取所有key

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Web;

namespace SyntacticSugar

{

    /// <summary>

    /// ** 描述：cookies操作类

    /// ** 创始时间：2015-6-9

    /// ** 修改时间：-

    /// ** 作者：sunkaixuan

    /// ** 使用说明：

    /// </summary>

    /// <typeparam name="V">值</typeparam>

    public class CookiesManager<V> : IHttpStorageObject<V>

    {

        #region 全局变量

        private static CookiesManager<V> _instance = null;

        private static readonly object _instanceLock = new object();

        #endregion

        /// <summary>

        /// 获取实例 （单例模式）

        /// </summary>

        /// <returns></returns>

        public static CookiesManager<V> GetInstance()

        {

            if (_instance == null)

                lock (_instanceLock)

                    if (_instance == null)

                        _instance = new CookiesManager<V>();

            return _instance;

        }

        /// <summary>

        /// 添加cookies ,注意value最大4K (默认1天)

        /// </summary>

        /// <param name="key">key</param>

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

        public override void Add(string key, V value)

        {

            Add(key, value, Day);

        }

        /// <summary>

        /// 添加cookies ,注意value最大4K

        /// </summary>

        /// <param name="key"></param>

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

        /// <param name="cookiesDurationInSeconds">有效时间单位秒</param>

        public void Add(string key, V value, int cookiesDurationInSeconds)

        {

            HttpResponse response = HttpContext.Current.Response;

            if (response != null)

            {

                HttpCookie cookie = response.Cookies[key];

                if (cookie != null)

                {

                    if (typeof(V) == typeof(string))

                    {

                        string setValue = value.ToString();

                        Add(key, cookiesDurationInSeconds, cookie, setValue, response);

                    }

                    else

                    {

                        System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();

                        string setValue = jss.Serialize(value);

                        Add(key, cookiesDurationInSeconds, cookie, setValue, response);

                    }

                }

            }

        }

        private void Add(string key, int cookiesDurationInSeconds, HttpCookie cookie, string setValue, HttpResponse response)

        {

            if (!string.IsNullOrEmpty(key) && cookie.HasKeys)

                cookie.Values.Set(key, setValue);

            else

                if (!string.IsNullOrEmpty(setValue))

                    cookie.Value = setValue;

            if (cookiesDurationInSeconds > )

                cookie.Expires = DateTime.Now.AddSeconds(cookiesDurationInSeconds);

            response.SetCookie(cookie);

        }

        public override bool ContainsKey(string key)

        {

            return Get(key) != null;

        }

        public override V Get(string key)

        {

            string value = string.Empty;

            if (context.Request.Cookies[key] != null)

                value = context.Request.Cookies[key].Value;

            if (typeof(V) == typeof(string))

            {

                return (V)Convert.ChangeType(value, typeof(V));

            }

            else

            {

                System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();

                return jss.Deserialize<V>(value);

            }

        }

        public override IEnumerable<string> GetAllKey()

        {

            var allKeyList = context.Request.Cookies.AllKeys.ToList();

            foreach (var key in allKeyList)

            {

                yield return key;

            }

        }

        public override void Remove(string key)

        {

            HttpRequest request = HttpContext.Current.Request;

            if (request != null)

            {

                HttpCookie cookie = request.Cookies[key];

                cookie.Expires = DateTime.Now.AddDays(-);

                if (cookie != null)

                {

                    if (!string.IsNullOrEmpty(key) && cookie.HasKeys)

                        cookie.Values.Remove(key);

                    else

                        request.Cookies.Remove(key);

                }

            }

        }

        public override void RemoveAll()

        {

            foreach (var key in GetAllKey())

            {

                Remove(key);

            }

        }

        public override void RemoveAll(Func<string, bool> removeExpression)

        {

            var removeList = GetAllKey().Where(removeExpression).ToList();

            foreach (var key in removeList)

            {

                Remove(key);

            }

        }

        public override V this[string key]

        {

            get { return Get(key); }

        }

    }

}

using System;

namespace SyntacticSugar

{

    public abstract class IHttpStorageObject<V>

    {

        public int Minutes = ;

        public int Hour =  * ;

        public int Day =  *  * ;

        public System.Web.HttpContext context = System.Web.HttpContext.Current;

        public abstract void Add(string key, V value);

        public abstract bool ContainsKey(string key);

        public abstract V Get(string key);

        public abstract global::System.Collections.Generic.IEnumerable<string> GetAllKey();

        public abstract void Remove(string key);

        public abstract void RemoveAll();

        public abstract void RemoveAll(Func<string, bool> removeExpression);

        public abstract V this[string key] { get; }

    }

}