/// <summary>
        /// 获取
        /// </summary>
        /// <typeparam name="TEntity"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public T Get <T>(string key)
        {
            var value = _conn.GetDatabase().StringGet(key);

            if (value.HasValue)
            {
                return(SerializeHelper.ConvertObj <T>(value));
            }
            else
            {
                return(default(T));
            }
        }