net core 操作Redis

"WebConfig": {
    "Redis": {
      "Connection": "127.0.1:6379,allowAdmin=true,password=cmkn,defaultdatabase=5,abortConnect=false",
      "InstanceName": "cmkn_Redis_Session_",
      "ApplicationName": "session_application_name",
      "PersistKeys": "DataProtection-Keys",
      "CookieName": "RedisSession","redisIP": "127.0.1",
      "redisPort": "6379",
      "redistime": "0.06:00:00"
    },
    "SessionTimeOut": "30" 
  }

/// <summary>
    /// Redis操作类
    /// </summary>
    public class RedisHelper
    {
        public static TimeSpan ts;
        private static ConnectionMultiplexer redis = null;
        private static IDatabase database = null;
        private static IServer server = null;
        private int mydb = 0;

        /// <summary>
        /// redis连接
        /// </summary>
        public static string REDIS_CONN;

        /// <summary>
        /// redisIP
        /// </summary>
        public static string REDIS_IP;

        /// <summary>
        /// redis端口
        /// </summary>
        public static int REDIS_PORT;

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="db"></param>
        public RedisHelper(int db)
        {
            mydb = db;
            if (redis == null)
            {
                redis = ConnectionMultiplexer.Connect(REDIS_CONN);
                database = redis.GetDatabase(mydb);
                server = redis.GetServer(REDIS_IP, REDIS_PORT);
                redis.ErrorMessage += Redis_ErrorMessage;
            }
        }


        /// <summary>
        /// 异常记录
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void Redis_ErrorMessage(object sender, RedisErrorEventArgs e)
        {
            //LogHelper.WriteLog("Redis", new Exception(e.Message));
        }

        /// <summary>
        /// 通过key获取value
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public string StringGet(string key)
        {
            return database.StringGet(key);
        }

        /// <summary>
        /// 新增key value
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val"></param>
        /// <param name="exp"></param>
        /// <returns></returns>
        public bool StringSet(string key, string val)
        {
            return StringSet(key, val, ts);
        }

        /// <summary>
        /// 新增key value
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val"></param>
        /// <param name="exp"></param>
        /// <returns></returns>
        public bool StringSet(string key, string val, TimeSpan exp)
        {
            return database.StringSet(key, val, exp);
        }

        /// <summary>
        /// 新增key value
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val"></param>
        /// <param name="exp"></param>
        /// <returns></returns>
        public bool ObjectSet(string key, object val)
        {
            return ObjectSet(key, val, ts);
        }

        /// <summary>
        /// 新增key value
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val"></param>
        /// <param name="exp"></param>
        /// <returns></returns>
        public bool ObjectSet(string key, object val, TimeSpan exp)
        {
            string json = Newtonsoft.Json.JsonConvert.SerializeObject(val);
            return database.StringSet(key, json, exp);
        }

        /// <summary>
        /// 获取key
        /// </summary>
        /// <param name="pattern"></param>
        /// <returns></returns>
        public IEnumerable<RedisKey> LikeKeys(string pattern = "*")
        {
            return server.Keys(database: mydb, pattern: pattern);
        }

        /// <summary>
        /// 查询
        /// </summary>
        /// <param name="pattern"></param>
        /// <returns></returns>
        public Dictionary<string, string> GetLikeKeyValue(string pattern = "*")
        {
            IEnumerable<RedisKey> list = LikeKeys(pattern);
            Dictionary<string, string> dic = new Dictionary<string, string>();
            if (list != null && list.Count() > 0)
            {
                foreach (var item in list)
                {
                    dic.Add(item, StringGet(item));
                }
            }
            return dic;
        }

        /// <summary>
        /// 删除key
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public bool KeyDelete(string key)
        {
            return database.KeyDelete(key);
        }
    }

 RedisHelper.REDIS_CONN = Configuration["WebConfig:Redis:Connection"];
 RedisHelper.REDIS_IP = Configuration["WebConfig:Redis:redisIP"];
 if (!int.TryParse(Configuration["WebConfig:Redis:redisPort"], out RedisHelper.REDIS_PORT)) RedisHelper.REDIS_PORT = 6379;