StackExchange.Redis的使用

StackExchange.Redis介紹

有需要了解的和基礎的使用可以參考：http://www.cnblogs.com/bnbqian/p/4962855.html

 

StackExchange.Redis的簡單封裝

 /// <summary>
    /// Redis操作類
    /// </summary>
    public class SERedisHelper
    {
        private static string _conn = ConfigurationManager.AppSettings["SERedis"] ?? "127.0.0.1:6379";

        #region string類型
        /// <summary>
        /// 根據Key獲取值
        /// </summary>
        /// <param name="key">鍵值</param>
        /// <returns>System.String.</returns>
        public static string StringGet(string key)
        {
            try
            {
                using (var client = ConnectionMultiplexer.Connect(_conn))
                {
                    return client.GetDatabase().StringGet(key);
                }
            }
            catch (Exception)
            {
                return null;
            }
        }

        /// <summary>
        /// 批量獲取值
        /// </summary>
        public static string[] StringGetMany(string[] keyStrs)
        {
            var count = keyStrs.Length;
            var keys = new RedisKey[count];
            var addrs = new string[count];

            for (var i = 0; i < count; i++)
            {
                keys[i] = keyStrs[i];
            }
            try
            {
                using (var client = ConnectionMultiplexer.Connect(_conn))
                {
                    var values = client.GetDatabase().StringGet(keys);
                    for (var i = 0; i < values.Length; i++)
                    {
                        addrs[i] = values[i];
                    }
                    return addrs;
                }
            }
            catch (Exception)
            {
                return null;
            }
        }


        /// <summary>
        /// 單條存值
        /// </summary>
        /// <param name="key">key</param>
        /// <param name="value">The value.</param>
        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
        public static bool StringSet(string key, string value)
        {

            using (var client = ConnectionMultiplexer.Connect(_conn))
            {
                return client.GetDatabase().StringSet(key, value);
            }
        }


        /// <summary>
        /// 批量存值
        /// </summary>
        /// <param name="keysStr">key</param>
        /// <param name="valuesStr">The value.</param>
        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
        public static bool StringSetMany(string[] keysStr, string[] valuesStr)
        {
            var count = keysStr.Length;
            var keyValuePair = new KeyValuePair<RedisKey, RedisValue>[count];
            for (int i = 0; i < count; i++)
            {
                keyValuePair[i] = new KeyValuePair<RedisKey, RedisValue>(keysStr[i], valuesStr[i]);
            }
            using (var client = ConnectionMultiplexer.Connect(_conn))
            {
                return client.GetDatabase().StringSet(keyValuePair);
            }
        }

        #endregion

        #region 泛型
        /// <summary>
        /// 存值並設置過期時間
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key">key</param>
        /// <param name="t">實體</param>
        /// <param name="ts">過期時間間隔</param>
        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
        public static bool Set<T>(string key, T t, TimeSpan ts)
        {
            var str = JsonConvert.SerializeObject(t);
            using (var client = ConnectionMultiplexer.Connect(_conn))
            {
                return client.GetDatabase().StringSet(key, str, ts);
            }
        }

        /// <summary>
        /// 
        /// 根據Key獲取值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key">The key.</param>
        /// <returns>T.</returns>
        public static T Get<T>(string key) where T : class
        {
            using (var client = ConnectionMultiplexer.Connect(_conn))
            {
                var strValue = client.GetDatabase().StringGet(key);
                return string.IsNullOrEmpty(strValue) ? null : JsonConvert.DeserializeObject<T>(strValue);
            }
        }
        #endregion
    }

 StackExchange.Redis的使用經驗

1、對於與Redis連接的配置，寫法很寬松，最簡單的寫法寫個IP和端口就可以了，如果有特殊配置，可以參考：https://github.com/StackExchange/StackExchange.Redis/blob/master/Docs/Configuration.md

 

2、StackExchange.Redis中的核心是ConnectionMultiplexer，可以好好研究。

 

3、在StackExchange.Redis沒必要多New鏈接：ConnectionMultiplexer.Connect，New多個鏈接反而會報錯，ConnectionMultiplexer內部有自己的一套調度方法。粗略的大致看作者的GitHub主頁，StackExchage最多與Redis客戶端建立6個連接。比較深入的，暫時吃不動。。。就以上這些了