详解StackExchange.Redis通用封装类分享

/// <summary> /// ConnectionMultiplexer对象管理帮助类 /// </summary> public static class RedisConnectionHelp {  //系统自定义Key前缀  public static readonly string SysCustomKey = ConfigurationManager.AppSettings["redisKey"] ?? "";  //"127.0.0.1:6379,allowadmin=true  private static readonly string RedisConnectionString = ConfigurationManager.ConnectionStrings["RedisExchangeHosts"].ConnectionString;  private static readonly object Locker = new object();  private static ConnectionMultiplexer _instance;  private static readonly ConcurrentDictionary<string, ConnectionMultiplexer> ConnectionCache = new ConcurrentDictionary<string, ConnectionMultiplexer>();  /// <summary>  /// 单例获取  /// </summary>  public static ConnectionMultiplexer Instance  {   get   {    if (_instance == null)    {     lock (Locker)     {      if (_instance == null || !_instance.IsConnected)      {       _instance = GetManager();      }     }    }    return _instance;   }  }  /// <summary>  /// 缓存获取  /// </summary>  /// <param name="connectionString"></param>  /// <returns></returns>  public static ConnectionMultiplexer GetConnectionMultiplexer(string connectionString)  {   if (!ConnectionCache.ContainsKey(connectionString))   {    ConnectionCache[connectionString] = GetManager(connectionString);   }   return ConnectionCache[connectionString];  }  private static ConnectionMultiplexer GetManager(string connectionString = null)  {   connectionString = connectionString ?? RedisConnectionString;   var connect = ConnectionMultiplexer.Connect(connectionString);   //注册如下事件   connect.ConnectionFailed += MuxerConnectionFailed;   connect.ConnectionRestored += MuxerConnectionRestored;   connect.ErrorMessage += MuxerErrorMessage;   connect.ConfigurationChanged += MuxerConfigurationChanged;   connect.HashSlotMoved += MuxerHashSlotMoved;   connect.InternalError += MuxerInternalError;   return connect;  }  #region 事件  /// <summary>  /// 配置更改时  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e)  {   Console.WriteLine("Configuration changed: " + e.EndPoint);  }  /// <summary>  /// 发生错误时  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e)  {   Console.WriteLine("ErrorMessage: " + e.Message);  }  /// <summary>  /// 重新建立连接之前的错误  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e)  {   Console.WriteLine("ConnectionRestored: " + e.EndPoint);  }  /// <summary>  /// 连接失败 ， 如果重新连接成功你将不会收到这个通知  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e)  {   Console.WriteLine("重新连接：Endpoint failed: " + e.EndPoint + ", " + e.FailureType + (e.Exception == null ? "" : (", " + e.Exception.Message)));  }  /// <summary>  /// 更改集群  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private static void MuxerHashSlotMoved(object sender, HashSlotMovedEventArgs e)  {   Console.WriteLine("HashSlotMoved:NewEndPoint" + e.NewEndPoint + ", OldEndPoint" + e.OldEndPoint);  }  /// <summary>  /// redis类库错误  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private static void MuxerInternalError(object sender, InternalErrorEventArgs e)  {   Console.WriteLine("InternalError:Message" + e.Exception.Message);  }  #endregion 事件 }

public class RedisHelper {  private int DbNum { get; }  private readonly ConnectionMultiplexer _conn;  public string CustomKey;  #region 构造函数  public RedisHelper(int dbNum = 0)    : this(dbNum, null)  {  }  public RedisHelper(int dbNum, string readWriteHosts)  {   DbNum = dbNum;   _conn =    string.IsNullOrWhiteSpace(readWriteHosts) ?    RedisConnectionHelp.Instance :    RedisConnectionHelp.GetConnectionMultiplexer(readWriteHosts);  }#region 辅助方法  private string AddSysCustomKey(string oldKey)  {   var prefixKey = CustomKey ?? RedisConnectionHelp.SysCustomKey;   return prefixKey + oldKey;  }  private T Do<T>(Func<IDatabase, T> func)  {   var database = _conn.GetDatabase(DbNum);   return func(database);  }  private string ConvertJson<T>(T value)  {   string result = value is string ? value.ToString() : JsonConvert.SerializeObject(value);   return result;  }  private T ConvertObj<T>(RedisValue value)  {   return JsonConvert.DeserializeObject<T>(value);  }  private List<T> ConvetList<T>(RedisValue[] values)  {   List<T> result = new List<T>();   foreach (var item in values)   {    var model = ConvertObj<T>(item);    result.Add(model);   }   return result;  }  private RedisKey[] ConvertRedisKeys(List<string> redisKeys)  {   return redisKeys.Select(redisKey => (RedisKey)redisKey).ToArray();  }  #endregion 辅助方法  #endregion 构造函数}

#region String  #region 同步方法  /// <summary>  /// 保存单个key value  /// </summary>  /// <param name="key">Redis Key</param>  /// <param name="value">保存的值</param>  /// <param name="expiry">过期时间</param>  /// <returns></returns>  public bool StringSet(string key, string value, TimeSpan? expiry = default(TimeSpan?))  {   key = AddSysCustomKey(key);   return Do(db => db.StringSet(key, value, expiry));  }  /// <summary>  /// 保存多个key value  /// </summary>  /// <param name="keyValues">键值对</param>  /// <returns></returns>  public bool StringSet(List<KeyValuePair<RedisKey, RedisValue>> keyValues)  {   List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =    keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();   return Do(db => db.StringSet(newkeyValues.ToArray()));  }  /// <summary>  /// 保存一个对象  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="obj"></param>  /// <param name="expiry"></param>  /// <returns></returns>  public bool StringSet<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))  {   key = AddSysCustomKey(key);   string json = ConvertJson(obj);   return Do(db => db.StringSet(key, json, expiry));  }  /// <summary>  /// 获取单个key的值  /// </summary>  /// <param name="key">Redis Key</param>  /// <returns></returns>  public string StringGet(string key)  {   key = AddSysCustomKey(key);   return Do(db => db.StringGet(key));  }  /// <summary>  /// 获取多个Key  /// </summary>  /// <param name="listKey">Redis Key集合</param>  /// <returns></returns>  public RedisValue[] StringGet(List<string> listKey)  {   List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();   return Do(db => db.StringGet(ConvertRedisKeys(newKeys)));  }  /// <summary>  /// 获取一个key的对象  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public T StringGet<T>(string key)  {   key = AddSysCustomKey(key);   return Do(db => ConvertObj<T>(db.StringGet(key)));  }  /// <summary>  /// 为数字增长val  /// </summary>  /// <param name="key"></param>  /// <param name="val">可以为负</param>  /// <returns>增长后的值</returns>  public double StringIncrement(string key, double val = 1)  {   key = AddSysCustomKey(key);   return Do(db => db.StringIncrement(key, val));  }  /// <summary>  /// 为数字减少val  /// </summary>  /// <param name="key"></param>  /// <param name="val">可以为负</param>  /// <returns>减少后的值</returns>  public double StringDecrement(string key, double val = 1)  {   key = AddSysCustomKey(key);   return Do(db => db.StringDecrement(key, val));  }  #endregion 同步方法  #region 异步方法  /// <summary>  /// 保存单个key value  /// </summary>  /// <param name="key">Redis Key</param>  /// <param name="value">保存的值</param>  /// <param name="expiry">过期时间</param>  /// <returns></returns>  public async Task<bool> StringSetAsync(string key, string value, TimeSpan? expiry = default(TimeSpan?))  {   key = AddSysCustomKey(key);   return await Do(db => db.StringSetAsync(key, value, expiry));  }  /// <summary>  /// 保存多个key value  /// </summary>  /// <param name="keyValues">键值对</param>  /// <returns></returns>  public async Task<bool> StringSetAsync(List<KeyValuePair<RedisKey, RedisValue>> keyValues)  {   List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =    keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();   return await Do(db => db.StringSetAsync(newkeyValues.ToArray()));  }  /// <summary>  /// 保存一个对象  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="obj"></param>  /// <param name="expiry"></param>  /// <returns></returns>  public async Task<bool> StringSetAsync<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))  {   key = AddSysCustomKey(key);   string json = ConvertJson(obj);   return await Do(db => db.StringSetAsync(key, json, expiry));  }  /// <summary>  /// 获取单个key的值  /// </summary>  /// <param name="key">Redis Key</param>  /// <returns></returns>  public async Task<string> StringGetAsync(string key)  {   key = AddSysCustomKey(key);   return await Do(db => db.StringGetAsync(key));  }  /// <summary>  /// 获取多个Key  /// </summary>  /// <param name="listKey">Redis Key集合</param>  /// <returns></returns>  public async Task<RedisValue[]> StringGetAsync(List<string> listKey)  {   List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();   return await Do(db => db.StringGetAsync(ConvertRedisKeys(newKeys)));  }  /// <summary>  /// 获取一个key的对象  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public async Task<T> StringGetAsync<T>(string key)  {   key = AddSysCustomKey(key);   string result = await Do(db => db.StringGetAsync(key));   return ConvertObj<T>(result);  }  /// <summary>  /// 为数字增长val  /// </summary>  /// <param name="key"></param>  /// <param name="val">可以为负</param>  /// <returns>增长后的值</returns>  public async Task<double> StringIncrementAsync(string key, double val = 1)  {   key = AddSysCustomKey(key);   return await Do(db => db.StringIncrementAsync(key, val));  }  /// <summary>  /// 为数字减少val  /// </summary>  /// <param name="key"></param>  /// <param name="val">可以为负</param>  /// <returns>减少后的值</returns>  public async Task<double> StringDecrementAsync(string key, double val = 1)  {   key = AddSysCustomKey(key);   return await Do(db => db.StringDecrementAsync(key, val));  }  #endregion 异步方法  #endregion String

#region List  #region 同步方法  /// <summary>  /// 移除指定ListId的内部List的值  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  public void ListRemove<T>(string key, T value)  {   key = AddSysCustomKey(key);   Do(db => db.ListRemove(key, ConvertJson(value)));  }  /// <summary>  /// 获取指定key的List  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public List<T> ListRange<T>(string key)  {   key = AddSysCustomKey(key);   return Do(redis =>   {    var values = redis.ListRange(key);    return ConvetList<T>(values);   });  }  /// <summary>  /// 入队  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  public void ListRightPush<T>(string key, T value)  {   key = AddSysCustomKey(key);   Do(db => db.ListRightPush(key, ConvertJson(value)));  }  /// <summary>  /// 出队  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public T ListRightPop<T>(string key)  {   key = AddSysCustomKey(key);   return Do(db =>    {     var value = db.ListRightPop(key);     return ConvertObj<T>(value);    });  }  /// <summary>  /// 入栈  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="value"></param>  public void ListLeftPush<T>(string key, T value)  {   key = AddSysCustomKey(key);   Do(db => db.ListLeftPush(key, ConvertJson(value)));  }  /// <summary>  /// 出栈  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public T ListLeftPop<T>(string key)  {   key = AddSysCustomKey(key);   return Do(db =>   {    var value = db.ListLeftPop(key);    return ConvertObj<T>(value);   });  }  /// <summary>  /// 获取集合中的数量  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public long ListLength(string key)  {   key = AddSysCustomKey(key);   return Do(redis => redis.ListLength(key));  }  #endregion 同步方法  #region 异步方法  /// <summary>  /// 移除指定ListId的内部List的值  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  public async Task<long> ListRemoveAsync<T>(string key, T value)  {   key = AddSysCustomKey(key);   return await Do(db => db.ListRemoveAsync(key, ConvertJson(value)));  }  /// <summary>  /// 获取指定key的List  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public async Task<List<T>> ListRangeAsync<T>(string key)  {   key = AddSysCustomKey(key);   var values = await Do(redis => redis.ListRangeAsync(key));   return ConvetList<T>(values);  }  /// <summary>  /// 入队  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  public async Task<long> ListRightPushAsync<T>(string key, T value)  {   key = AddSysCustomKey(key);   return await Do(db => db.ListRightPushAsync(key, ConvertJson(value)));  }  /// <summary>  /// 出队  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public async Task<T> ListRightPopAsync<T>(string key)  {   key = AddSysCustomKey(key);   var value = await Do(db => db.ListRightPopAsync(key));   return ConvertObj<T>(value);  }  /// <summary>  /// 入栈  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="value"></param>  public async Task<long> ListLeftPushAsync<T>(string key, T value)  {   key = AddSysCustomKey(key);   return await Do(db => db.ListLeftPushAsync(key, ConvertJson(value)));  }  /// <summary>  /// 出栈  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public async Task<T> ListLeftPopAsync<T>(string key)  {   key = AddSysCustomKey(key);   var value = await Do(db => db.ListLeftPopAsync(key));   return ConvertObj<T>(value);  }  /// <summary>  /// 获取集合中的数量  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public async Task<long> ListLengthAsync(string key)  {   key = AddSysCustomKey(key);   return await Do(redis => redis.ListLengthAsync(key));  }  #endregion 异步方法  #endregion List

#region Hash  #region 同步方法  /// <summary>  /// 判断某个数据是否已经被缓存  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <returns></returns>  public bool HashExists(string key, string dataKey)  {   key = AddSysCustomKey(key);   return Do(db => db.HashExists(key, dataKey));  }  /// <summary>  /// 存储数据到hash表  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <param name="t"></param>  /// <returns></returns>  public bool HashSet<T>(string key, string dataKey, T t)  {   key = AddSysCustomKey(key);   return Do(db =>   {    string json = ConvertJson(t);    return db.HashSet(key, dataKey, json);   });  }  /// <summary>  /// 移除hash中的某值  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <returns></returns>  public bool HashDelete(string key, string dataKey)  {   key = AddSysCustomKey(key);   return Do(db => db.HashDelete(key, dataKey));  }  /// <summary>  /// 移除hash中的多个值  /// </summary>  /// <param name="key"></param>  /// <param name="dataKeys"></param>  /// <returns></returns>  public long HashDelete(string key, List<RedisValue> dataKeys)  {   key = AddSysCustomKey(key);   //List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};   return Do(db => db.HashDelete(key, dataKeys.ToArray()));  }  /// <summary>  /// 从hash表获取数据  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <returns></returns>  public T HashGet<T>(string key, string dataKey)  {   key = AddSysCustomKey(key);   return Do(db =>   {    string value = db.HashGet(key, dataKey);    return ConvertObj<T>(value);   });  }  /// <summary>  /// 为数字增长val  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <param name="val">可以为负</param>  /// <returns>增长后的值</returns>  public double HashIncrement(string key, string dataKey, double val = 1)  {   key = AddSysCustomKey(key);   return Do(db => db.HashIncrement(key, dataKey, val));  }  /// <summary>  /// 为数字减少val  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <param name="val">可以为负</param>  /// <returns>减少后的值</returns>  public double HashDecrement(string key, string dataKey, double val = 1)  {   key = AddSysCustomKey(key);   return Do(db => db.HashDecrement(key, dataKey, val));  }  /// <summary>  /// 获取hashkey所有Redis key  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public List<T> HashKeys<T>(string key)  {   key = AddSysCustomKey(key);   return Do(db =>   {    RedisValue[] values = db.HashKeys(key);    return ConvetList<T>(values);   });  }  #endregion 同步方法  #region 异步方法  /// <summary>  /// 判断某个数据是否已经被缓存  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <returns></returns>  public async Task<bool> HashExistsAsync(string key, string dataKey)  {   key = AddSysCustomKey(key);   return await Do(db => db.HashExistsAsync(key, dataKey));  }  /// <summary>  /// 存储数据到hash表  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <param name="t"></param>  /// <returns></returns>  public async Task<bool> HashSetAsync<T>(string key, string dataKey, T t)  {   key = AddSysCustomKey(key);   return await Do(db =>   {    string json = ConvertJson(t);    return db.HashSetAsync(key, dataKey, json);   });  }  /// <summary>  /// 移除hash中的某值  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <returns></returns>  public async Task<bool> HashDeleteAsync(string key, string dataKey)  {   key = AddSysCustomKey(key);   return await Do(db => db.HashDeleteAsync(key, dataKey));  }  /// <summary>  /// 移除hash中的多个值  /// </summary>  /// <param name="key"></param>  /// <param name="dataKeys"></param>  /// <returns></returns>  public async Task<long> HashDeleteAsync(string key, List<RedisValue> dataKeys)  {   key = AddSysCustomKey(key);   //List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};   return await Do(db => db.HashDeleteAsync(key, dataKeys.ToArray()));  }  /// <summary>  /// 从hash表获取数据  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <returns></returns>  public async Task<T> HashGeAsync<T>(string key, string dataKey)  {   key = AddSysCustomKey(key);   string value = await Do(db => db.HashGetAsync(key, dataKey));   return ConvertObj<T>(value);  }  /// <summary>  /// 为数字增长val  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <param name="val">可以为负</param>  /// <returns>增长后的值</returns>  public async Task<double> HashIncrementAsync(string key, string dataKey, double val = 1)  {   key = AddSysCustomKey(key);   return await Do(db => db.HashIncrementAsync(key, dataKey, val));  }  /// <summary>  /// 为数字减少val  /// </summary>  /// <param name="key"></param>  /// <param name="dataKey"></param>  /// <param name="val">可以为负</param>  /// <returns>减少后的值</returns>  public async Task<double> HashDecrementAsync(string key, string dataKey, double val = 1)  {   key = AddSysCustomKey(key);   return await Do(db => db.HashDecrementAsync(key, dataKey, val));  }  /// <summary>  /// 获取hashkey所有Redis key  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="key"></param>  /// <returns></returns>  public async Task<List<T>> HashKeysAsync<T>(string key)  {   key = AddSysCustomKey(key);   RedisValue[] values = await Do(db => db.HashKeysAsync(key));   return ConvetList<T>(values);  }  #endregion 异步方法  #endregion Hash

#region SortedSet 有序集合  #region 同步方法  /// <summary>  /// 添加  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  /// <param name="score"></param>  public bool SortedSetAdd<T>(string key, T value, double score)  {   key = AddSysCustomKey(key);   return Do(redis => redis.SortedSetAdd(key, ConvertJson<T>(value), score));  }  /// <summary>  /// 删除  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  public bool SortedSetRemove<T>(string key, T value)  {   key = AddSysCustomKey(key);   return Do(redis => redis.SortedSetRemove(key, ConvertJson(value)));  }  /// <summary>  /// 获取全部  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public List<T> SortedSetRangeByRank<T>(string key)  {   key = AddSysCustomKey(key);   return Do(redis =>   {    var values = redis.SortedSetRangeByRank(key);    return ConvetList<T>(values);   });  }  /// <summary>  /// 获取集合中的数量  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public long SortedSetLength(string key)  {   key = AddSysCustomKey(key);   return Do(redis => redis.SortedSetLength(key));  }  #endregion 同步方法  #region 异步方法  /// <summary>  /// 添加  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  /// <param name="score"></param>  public async Task<bool> SortedSetAddAsync<T>(string key, T value, double score)  {   key = AddSysCustomKey(key);   return await Do(redis => redis.SortedSetAddAsync(key, ConvertJson<T>(value), score));  }  /// <summary>  /// 删除  /// </summary>  /// <param name="key"></param>  /// <param name="value"></param>  public async Task<bool> SortedSetRemoveAsync<T>(string key, T value)  {   key = AddSysCustomKey(key);   return await Do(redis => redis.SortedSetRemoveAsync(key, ConvertJson(value)));  }  /// <summary>  /// 获取全部  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public async Task<List<T>> SortedSetRangeByRankAsync<T>(string key)  {   key = AddSysCustomKey(key);   var values = await Do(redis => redis.SortedSetRangeByRankAsync(key));   return ConvetList<T>(values);  }  /// <summary>  /// 获取集合中的数量  /// </summary>  /// <param name="key"></param>  /// <returns></returns>  public async Task<long> SortedSetLengthAsync(string key)  {   key = AddSysCustomKey(key);   return await Do(redis => redis.SortedSetLengthAsync(key));  }  #endregion 异步方法  #endregion SortedSet 有序集合

#region key  /// <summary>  /// 删除单个key  /// </summary>  /// <param name="key">redis key</param>  /// <returns>是否删除成功</returns>  public bool KeyDelete(string key)  {   key = AddSysCustomKey(key);   return Do(db => db.KeyDelete(key));  }  /// <summary>  /// 删除多个key  /// </summary>  /// <param name="keys">rediskey</param>  /// <returns>成功删除的个数</returns>  public long KeyDelete(List<string> keys)  {   List<string> newKeys = keys.Select(AddSysCustomKey).ToList();   return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));  }  /// <summary>  /// 判断key是否存储  /// </summary>  /// <param name="key">redis key</param>  /// <returns></returns>  public bool KeyExists(string key)  {   key = AddSysCustomKey(key);   return Do(db => db.KeyExists(key));  }  /// <summary>  /// 重新命名key  /// </summary>  /// <param name="key">就的redis key</param>  /// <param name="newKey">新的redis key</param>  /// <returns></returns>  public bool KeyRename(string key, string newKey)  {   key = AddSysCustomKey(key);   return Do(db => db.KeyRename(key, newKey));  }  /// <summary>  /// 设置Key的时间  /// </summary>  /// <param name="key">redis key</param>  /// <param name="expiry"></param>  /// <returns></returns>  public bool KeyExpire(string key, TimeSpan? expiry = default(TimeSpan?))  {   key = AddSysCustomKey(key);   return Do(db => db.KeyExpire(key, expiry));  }  #endregion key

#region 发布订阅  /// <summary>  /// Redis发布订阅 订阅  /// </summary>  /// <param name="subChannel"></param>  /// <param name="handler"></param>  public void Subscribe(string subChannel, Action<RedisChannel, RedisValue> handler = null)  {   ISubscriber sub = _conn.GetSubscriber();   sub.Subscribe(subChannel, (channel, message) =>   {    if (handler == null)    {     Console.WriteLine(subChannel + " 订阅收到消息：" + message);    }    else    {     handler(channel, message);    }   });  }  /// <summary>  /// Redis发布订阅 发布  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="channel"></param>  /// <param name="msg"></param>  /// <returns></returns>  public long Publish<T>(string channel, T msg)  {   ISubscriber sub = _conn.GetSubscriber();   return sub.Publish(channel, ConvertJson(msg));  }  /// <summary>  /// Redis发布订阅 取消订阅  /// </summary>  /// <param name="channel"></param>  public void Unsubscribe(string channel)  {   ISubscriber sub = _conn.GetSubscriber();   sub.Unsubscribe(channel);  }  /// <summary>  /// Redis发布订阅 取消全部订阅  /// </summary>  public void UnsubscribeAll()  {   ISubscriber sub = _conn.GetSubscriber();   sub.UnsubscribeAll();  }  #endregion 发布订阅

#region 其他  public ITransaction CreateTransaction()  {   return GetDatabase().CreateTransaction();  }  public IDatabase GetDatabase()  {   return _conn.GetDatabase(DbNum);  }  public IServer GetServer(string hostAndPort)  {   return _conn.GetServer(hostAndPort);  }  /// <summary>  /// 设置前缀  /// </summary>  /// <param name="customKey"></param>  public void SetSysCustomKey(string customKey)  {   CustomKey = customKey;  }  #endregion 其他