Memcached 的一些用法

public interface ICache
    {

        object Get(string key);
        
        /// <summary>
        /// 根据 key 从缓存中读取数据
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        T Get<T>(string key);

        /// <summary>
        /// 根据 key 从缓存中读取数据
        /// 当缓存中不存在读取的数据时， 将通过 getData function 获取数据.
        /// 如果 getData function 的返回数据也为 null 则不会 set 到缓存.
        /// 否则会将 getData function 的数据 set 到缓存, 该缓存设置按默认过期时间处理
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="getData"></param>
        /// <returns></returns>
        T Get<T>(string key, Func<T> getData);

        /// <summary>
        /// 根据 key 从缓存中读取数据
        /// 当缓存中不存在读取的数据时，将通过 getData function 获取数据.
        /// 如果 getData function 的返回数据也为 null 则不会 set 到缓存.
        /// 否则会将 getData function 的数据 set 到缓存, 该缓存设置按 timespan 过期时间处理
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="getData"></param>
        /// <param name="timespan"></param>
        /// <returns></returns>
        T Get<T>(string key, Func<T> getData, TimeSpan timespan);

        /// <summary>
        /// 设置数据到缓存
        /// 缓存的过期时间按默认时间处理
        /// </summary>
        /// <param name="key"></param>
        /// <param name="data"></param>
        void Set(string key, object data);

        /// <summary>
        /// 设置数据到缓存，并指定过期时间
        /// </summary>
        /// <param name="key"></param>
        /// <param name="data"></param>
        /// <param name="cacheTime"></param>
        void Set(string key, object data, TimeSpan cacheTime);

        /// <summary>
        /// 缓存数组中是否存在某项 key
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        bool IsSet(string key);

        /// <summary>
        /// 根据key移除缓存值
        /// </summary>
        /// <param name="key"></param>
        void Remove(string key);

    }

　　

 

public class MemcachedCacheProvider : ICache
    {

        const int DefaultCacheExpiredMinutes = 20;

        private MemcachedClient _Client;

        public MemcachedCacheProvider()
        {
            _Client = new MemcachedClient();
        }

        public object Get(string key)
        {
            if (string.IsNullOrEmpty(key))
                throw new ArgumentNullException("key");
            return _Client.Get(key);
        }

        public T Get<T>(string key)
        {
            object obj = this.Get(key);
            if (obj is T)
            {
                return (T)obj;
            }
            return default(T);
        }

        public T Get<T>(string key, Func<T> getData)
        {
            return this.Get<T>(key, getData, TimeSpan.FromMinutes(DefaultCacheExpiredMinutes));
        }

        public T Get<T>(string key, Func<T> getData, TimeSpan timespan)
        {
            T val = this.Get<T>(key);
            if (val == null)
            {
                val = getData();
                if (val != null)
                {
                    this.Set(key, val, timespan);
                }
            }
            return val;
        }

        public void Set(string key, object data)
        {
            this.Set(key, data, TimeSpan.FromMinutes(DefaultCacheExpiredMinutes));
        }

        public void Set(string key, object data, TimeSpan cacheTime)
        {
            if (string.IsNullOrEmpty(key))
                throw new ArgumentNullException("key");
            if (data == null)
            {
                return;
            }

            DateTime time = DateTime.Now.Add(cacheTime);
            DateTime now = DateTime.Now;
            if (now >= time)
            {
                throw new Exception("时间设置不正确");
            }

            _Client.Set(key, data, time);
        }

        public bool IsSet(string key)
        {
            return _Client.KeyExists(key);
        }

        public void Remove(string key)
        {
            _Client.Delete(key);
        }
    }

 

// 获得客户端实例
        MemcachedClient mc = new MemcachedClient();

            string[] serverlist = { "10.10.20.51:11211" };

            //初始化池
            SockIOPool pool = SockIOPool.GetInstance();
            pool.SetServers(serverlist);

            pool.InitConnections = 3;
            pool.MinConnections = 3;
            pool.MaxConnections = 5;

            pool.SocketConnectTimeout = 1000;
            pool.SocketTimeout = 3000;

            pool.MaintenanceSleep = 30;
            pool.Failover = true;

            pool.Nagle = false;
            pool.Initialize();