1、nuget StackExchange.Redis

2、建立RedisHelper類：

public class RedisHelper
    {
        /// <summary>
        /// 連線字串
        /// </summary>
        private static readonly string ConnectionString = ConfigurationManager.ConnectionStrings["RedisConnectionString"].ConnectionString;
        /// <summary>
 

        /// 鎖
        /// </summary>
        private readonly object _lock = new object();
        /// <summary>
        /// 連線物件
        /// </summary>
        private volatile IConnectionMultiplexer _connection;
        /// <summary>
        /// 資料庫
        /// </summary>
        private IDatabase _db;
        
 
public RedisHelper()
        {
            _connection = ConnectionMultiplexer.Connect(ConnectionString);
            _db = GetDatabase();
        }
        /// <summary>
        /// 獲取連線
        /// </summary>
        /// <returns></returns>
        protected IConnectionMultiplexer GetConnection()
        {
            
 
if (_connection != null && _connection.IsConnected)
            {
                return _connection;
            }
            lock (_lock)
            {
                if (_connection != null && _connection.IsConnected)
                {
                    return _connection;
                }

                if (_connection != null)
                {
                    _connection.Dispose();
                }
                _connection = ConnectionMultiplexer.Connect(ConnectionString);
            }

            return _connection;
        }
        /// <summary>
        /// 獲取資料庫
        /// </summary>
        /// <param name="db"></param>
        /// <returns></returns>
        public IDatabase GetDatabase(int? db = null)
        {
            return GetConnection().GetDatabase(db ?? -1);
        }
        /// <summary>
        /// 設定
        /// </summary>
        /// <param name="key">鍵</param>
        /// <param name="data">值</param>
        /// <param name="cacheTime">時間</param>
        public virtual void Set(string key, object data, int cacheTime)
        {
            if (data == null)
            {
                return;
            }
            var entryBytes = Serialize(data);
            var expiresIn = TimeSpan.FromMinutes(cacheTime);

            _db.StringSet(key, entryBytes, expiresIn);
        }
        /// <summary>
        /// 根據鍵獲取值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public virtual T Get<T>(string key)
        {

            var rValue = _db.StringGet(key);
            if (!rValue.HasValue)
            {
                return default(T);
            }

            var result = Deserialize<T>(rValue);

            return result;
        }
        /// <summary>
        /// 反序列化
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="serializedObject"></param>
        /// <returns></returns>
        protected virtual T Deserialize<T>(byte[] serializedObject)
        {
            if (serializedObject == null)
            {
                return default(T);
            }
            var json = Encoding.UTF8.GetString(serializedObject);
            return JsonConvert.DeserializeObject<T>(json);
        }
        /// <summary>
        /// 判斷是否已經設定
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public virtual bool IsSet(string key)
        {
            return _db.KeyExists(key);
        }
        /// <summary>
        /// 序列化
        /// </summary>
        /// <param name="data"></param>
        /// <returns>byte[]</returns>
        private byte[] Serialize(object data)
        {
            var json = JsonConvert.SerializeObject(data);
            return Encoding.UTF8.GetBytes(json);
        }
    }

3、檢視遠端Redis埠是否開放：

如果沒有開放的話，請修改Redis的conf檔案的bind:127.0.0.1 改為 bind 0.0.0.0