Redis学习总结

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最新推荐文章于 2024-02-19 17:20:26 发布
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Redis学习总结 


项目需要用到消息队列，了解到Redis是个不错的选择，因此学习了下Redis的使用。


 1、Redis简介


REmote DIctionary Server(Redis) 是一个由Salvatore Sanfilippo写的key-value存储系统。Redis是一个开源的使用ANSI C语言编写、遵守BSD协议、支持网络、可基于内存亦可持久化的日志型、Key-Value数据库，并提供多种语言的API。它通常被称为数据结构服务器，因为值（value）可以是 字符串(String), 哈希(Hash), 列表(list), 集合(sets) 和 有序集合(sorted sets)等类型。Redis是字典服务器，可以作为缓存服务器，本身支持MQ功能，所以完全可以当做一个轻量级的队列服务来使用。
本文针对作为消息队列进行分析。


2 、Redis消息队列


Redis消息队列是什么？
Redis消息队列的特点？


3 、Redis消息队列测试


3.1 安装

 

1.点击下载：Redis下载链接

2.Redis-x64-xxx.zip压缩包到 C 盘，解压后，将文件夹重新命名为 redis。

3.配置：管理员打开CMD 输入 

C:\Redis  回车
redis-server.exe redis.windows.conf 回车

4、测试一下：管理员打开第二个CMD输入

C:\Redis  回车
redis-cli.exe -h 127.0.0.1 -p 6379回车
set myKey abc
get myKey

5.以服务形式安装：管理员打开CMD 输入 

C:\Redis  回车
redis-server --service-install redis.windows.conf --loglevel verbose

（1）启动命令如下：

redis-server --service-start

（2）停止命令：

redis-server --service-stop

（3）卸载命令：

redis-server --service-uninstall

3.2 消息队列测试


测试程序开发环境VS2017，.net framework 4.5

1.创建C#控制台程序
2.nuget 安装1.26版本（2.0*版本有依赖）
3.创建工具类 RedisHelper（见文末）
4.创建数据模型ChatModels

    [Serializable]
    public class ChatModels
    {
        public string userId { get; set; }

        public string chat { get; set; }
    }

5.修改程序配置

    <appSettings>
        <add key="Redis.Defaultkey" value="console"/>
    </appSettings>
    <connectionStrings>
        <add name="RedisConnectionString" connectionString="127.0.0.1:6379"/>
    </connectionStrings>

6.在控制台中 编写如下逻辑：

  static void Main(string[] args)
        {
            var redisClient = new RedisHelper(2);
            int i= 0;
            for (; ; )
            {
                Console.WriteLine("按回车退出循环，按Left入列，按right出列");
                if (Console.ReadKey(true).Key == ConsoleKey.LeftArrow)
                {
                    i++;
                    // 消息出列
                    ChatModels chatModels = new ChatModels() { userId = "userID"+i.ToString(), chat = "聊天内容 " + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") };
                    var id = redisClient.ListRightPush<ChatModels>("MessageQuene", chatModels);
                    Console.WriteLine(string.Format("消息入列{2}：Useid={0},chat={1}", chatModels.userId, chatModels.chat, id));
                }
                else if (Console.ReadKey(true).Key == ConsoleKey.RightArrow)
                {
                    // 消息出列
                    var chatModels = redisClient.ListLeftPop<ChatModels>("MessageQuene");
                    if (chatModels != null)
                    {
                        Console.WriteLine(string.Format("消息出列：Useid={0},chat={1}", chatModels.userId, chatModels.chat));
                    }
                    else
                    {
                        Console.WriteLine("队列为空");
                    }
                }
                else
                {
                    if (Console.ReadKey(true).Key == ConsoleKey.Enter)
                    {
                        break;
                    }
                }
            }
        }


编译运行即可实现左键入队右键出队.



3.3 发布/订阅测试


1.创建两个新的控制台程序 RedisPublish 和 RedisSubscribe
2.分别修改配置文件
3.RedisPublish主程序

  static void Main(string[] args)
        {
            var redisClient = new RedisHelper(2);
            for (; ; )
            {
                Console.WriteLine("按回车退出循环，按UpArrow 发布");
                if (Console.ReadKey(true).Key == ConsoleKey.UpArrow)
                {
                    // 消息发布
                    ChatModels chatModels = new ChatModels() { userId = "userID" + i.ToString(), chat = "聊天内容 " + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") };
                    var id =redisClient.Publish<ChatModels>("MessageQuene", chatModels);
                    Console.WriteLine(string.Format("消息发布{2}：Useid={0},chat={1}", chatModels.userId, chatModels.chat, id));
                }
                else
                {
                    if (Console.ReadKey(true).Key == ConsoleKey.Enter)
                    {
                        break;
                    }
                }

            }
        }


实现 上键发布消息。
4.RedisSubscribe主程序

  ` class Program
    {
        static void Main(string[] args)
        {
            var redisClient = new RedisHelper(2);
            redisClient.Subscribe("MessageQuene", Event);
            Console.WriteLine("已订阅 频道 MessageQuene ");
            Console.ReadLine();
        }

        /// <summary>
        /// 订阅事件
        /// </summary>
        /// <param name="redisChannel"></param>
        /// <param name="redisValue"></param>
        public static void Event(RedisChannel redisChannel, RedisValue redisValue)
        {
            ChatModels chatModels = null;
            chatModels= Deserialize<ChatModels>(redisValue);
            if (chatModels!=null)
            {
                Console.WriteLine(string.Format("消息订阅：Useid={0},chat={1}", chatModels.userId, chatModels.chat));
            }
        }

        /// <summary>
        /// 反序列化
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="data"></param>
        /// <returns></returns>
        private static T Deserialize<T>(byte[] data)
        {
            if (data == null)
                return default(T);
            var binaryFormatter = new BinaryFormatter();
            using (var memoryStream = new MemoryStream(data))
            {
                var result = (T)binaryFormatter.Deserialize(memoryStream);
                return result;
            }
        }
    }`


编译两个文件，可以启动多个订阅客户端订阅发布服务端。然后在发布服务端按上键测试发布即可。


4、总结 


Redis的消息队列的实现还是很简单的，速度也很快。在一般的消息队列需求下可以应用。


参考：



1、Redis安装
2、Redis消息队列
附 RedisHelper
 

  public class RedisHelper
    {
        /// <summary>
        /// 连接字符串
        /// </summary>
        private static readonly string ConnectionString;
        /// <summary>
        /// redis 连接对象
        /// </summary>
        private static IConnectionMultiplexer _connMultiplexer;
        /// <summary>
        /// 默认的key值（用来当作RedisKey的前缀）【此部分为自行修改的，无意义】
        /// </summary>
        public static string DefaultKey { get; private set; }
        /// <summary>
        /// 锁
        /// </summary>
        private static readonly object Locker = new object();
        /// <summary>
        /// 数据库访问对象
        /// </summary>
        private readonly IDatabase _db;
        /// <summary>
        /// 采用双重锁单例模式，保证数据访问对象有且仅有一个
        /// </summary>
        /// <returns></returns>
        public IConnectionMultiplexer GetConnectionRedisMultiplexer()
        {
            if ((_connMultiplexer == null || !_connMultiplexer.IsConnected))
            {
                lock (Locker)
                {
                    if ((_connMultiplexer == null || !_connMultiplexer.IsConnected))
                    {
                        _connMultiplexer = ConnectionMultiplexer.Connect(ConnectionString);
                    }
                }
            }
            return _connMultiplexer;
        }
        /// <summary>
        /// 添加事务处理
        /// </summary>
        /// <returns></returns>
        public ITransaction GetTransaction()
        {
            //创建事务
            return _db.CreateTransaction();
        }
        /// <summary>
        /// 静态的构造函数,
        /// 构造函数是属于类的，而不是属于实例的
        /// 就是说这个构造函数只会被执行一次。也就是在创建第一个实例或引用任何静态成员之前，由.NET自动调用。
        /// </summary>
        static RedisHelper()
        {
            ConnectionString = ConfigurationManager.ConnectionStrings["RedisConnectionString"].ConnectionString;
            _connMultiplexer = ConnectionMultiplexer.Connect(ConnectionString);
            DefaultKey = ConfigurationManager.AppSettings["Redis.DefaultKey"];
            RegisterEvent();
        }
        /// <summary>
        /// 重载构造器
        /// </summary>
        /// <param name="db"></param>
        public RedisHelper(int db = -1)
        {
            _db = _connMultiplexer.GetDatabase(db);
        }

        #region private method
        /// <summary>
        /// 添加 key 的前缀
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        private static string AddKeyPrefix(string key)
        {
            return $"{DefaultKey}:{key}";
        }
        /// <summary>
        /// 序列化
        /// </summary>
        /// <param name="obj"></param>
        /// <returns></returns>
        private static byte[] Serialize(object obj)
        {
            try
            {
                if (obj == null)
                    return null;
                var binaryFormatter = new BinaryFormatter();
                using (var memoryStream = new MemoryStream())
                {
                    binaryFormatter.Serialize(memoryStream, obj);
                    var data = memoryStream.ToArray();
                    return data;
                }
            }
            catch (SerializationException ex)
            {
                throw ex;
            }
        }
        /// <summary>
        /// 反序列化
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="data"></param>
        /// <returns></returns>
        private static T Deserialize<T>(byte[] data)
        {
            if (data == null)
                return default(T);
            var binaryFormatter = new BinaryFormatter();
            using (var memoryStream = new MemoryStream(data))
            {
                var result = (T)binaryFormatter.Deserialize(memoryStream);
                return result;
            }
        }
        #endregion 

        #region stringGet 
        /// <summary>
        /// 设置key，并保存字符串（如果key 已存在，则覆盖）
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <param name="expried"></param>
        /// <returns></returns>
        public bool StringSet(string redisKey, string redisValue, TimeSpan? expried = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.StringSet(redisKey, redisValue, expried);
        }
        /// <summary>
        /// 保存多个key-value
        /// </summary>
        /// <param name="keyValuePairs"></param>
        /// <returns></returns>
        public bool StringSet(IEnumerable<KeyValuePair<RedisKey, RedisValue>> keyValuePairs)
        {
            keyValuePairs =
                keyValuePairs.Select(x => new KeyValuePair<RedisKey, RedisValue>(AddKeyPrefix(x.Key), x.Value));
            return _db.StringSet(keyValuePairs.ToArray());
        }
        /// <summary>
        /// 获取字符串
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public string StringGet(string redisKey, TimeSpan? expired = null)
        {
            try
            {
                redisKey = AddKeyPrefix(redisKey);
                return _db.StringGet(redisKey);
            }
            catch (TypeAccessException ex)
            {
                throw ex;
            }
        }
        /// <summary>
        /// 存储一个对象，该对象会被序列化存储
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public bool StringSet<T>(string redisKey, T redisValue, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            var json = Serialize(redisKey);
            return _db.StringSet(redisKey, json, expired);
        }
        /// <summary>
        /// 获取一个对象(会进行反序列化)
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public T StringSet<T>(string redisKey, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(_db.StringGet(redisKey));
        }

        /// <summary>
        /// 保存一个字符串值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public async Task<bool> StringSetAsync(string redisKey, string redisValue, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.StringSetAsync(redisKey, redisValue, expired);
        }
        /// <summary>
        /// 保存一个字符串值
        /// </summary>
        /// <param name="keyValuePairs"></param>
        /// <returns></returns>
        public async Task<bool> StringSetAsync(IEnumerable<KeyValuePair<RedisKey, RedisValue>> keyValuePairs)
        {
            keyValuePairs
                = keyValuePairs.Select(x => new KeyValuePair<RedisKey, RedisValue>(AddKeyPrefix(x.Key), x.Value));
            return await _db.StringSetAsync(keyValuePairs.ToArray());
        }
        /// <summary>
        /// 获取单个值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public async Task<string> StringGetAsync(string redisKey, string redisValue, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.StringGetAsync(redisKey);
        }
        /// <summary>
        /// 存储一个对象（该对象会被序列化保存）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public async Task<bool> StringSetAsync<T>(string redisKey, string redisValue, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            var json = Serialize(redisValue);
            return await _db.StringSetAsync(redisKey, json, expired);
        }
        /// <summary>
        /// 获取一个对象（反序列化）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public async Task<T> StringGetAsync<T>(string redisKey, string redisValue, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(await _db.StringGetAsync(redisKey));
        }
        #endregion

        #region  string operation
        /// <summary>
        /// 判断字段是否在hash中
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public bool HashExist(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashExists(redisKey, hashField);
        }
        /// <summary>
        /// 从hash 中删除字段
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public bool HashDelete(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashDelete(redisKey, hashField);
        }
        /// <summary>
        /// 从hash中移除指定字段
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public long HashDelete(string redisKey, IEnumerable<RedisValue> hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashDelete(redisKey, hashField.ToArray());
        }
        /// <summary>
        /// 在hash中设定值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public bool HashSet(string redisKey, string hashField, string value)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashSet(redisKey, hashField, value);
        }
        /// <summary>
        /// 从Hash 中获取值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public RedisValue HashGet(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashGet(redisKey, hashField);
        }
        /// <summary>
        /// 从Hash 中获取值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public RedisValue[] HashGet(string redisKey, RedisValue[] hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashGet(redisKey, hashField);
        }
        /// <summary>
        /// 从hash 返回所有的key值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public IEnumerable<RedisValue> HashKeys(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashKeys(redisKey);
        }
        /// <summary>
        /// 根据key返回hash中的值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public RedisValue[] HashValues(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.HashValues(redisKey);
        }
        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public bool HashSet<T>(string redisKey, string hashField, T value)
        {
            redisKey = AddKeyPrefix(redisKey);
            var json = Serialize(value);
            return _db.HashSet(redisKey, hashField, json);
        }
        /// <summary>
        /// 在hash 中获取值 （反序列化）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public T HashGet<T>(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(_db.HashGet(redisKey, hashField));
        }
        /// <summary>
        /// 判断字段是否存在hash 中
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public async Task<bool> HashExistsAsync(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashExistsAsync(redisKey, hashField);
        }
        /// <summary>
        /// 从hash中移除指定字段
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public async Task<bool> HashDeleteAsync(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashDeleteAsync(redisKey, hashField);
        }
        /// <summary>
        /// 从hash中移除指定字段
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public async Task<long> HashDeleteAsync(string redisKey, IEnumerable<RedisValue> hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashDeleteAsync(redisKey, hashField.ToArray());
        }
        /// <summary>
        /// 在hash 设置值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public async Task<bool> HashSetAsync(string redisKey, string hashField, string value)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashSetAsync(redisKey, hashField, value);
        }
        /// <summary>
        /// 在hash 中设定值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashFields"></param>
        /// <returns></returns>
        public async Task HashSetAsync(string redisKey, IEnumerable<HashEntry> hashFields)
        {
            redisKey = AddKeyPrefix(redisKey);
            await _db.HashSetAsync(redisKey, hashFields.ToArray());
        }
        /// <summary>
        /// 在hash 中设定值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public async Task<RedisValue> HashGetAsync(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashGetAsync(redisKey, hashField);
        }
        /// <summary>
        /// 在hash 中获取值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public async Task<IEnumerable<RedisValue>> HashGetAsync(string redisKey, RedisValue[] hashField, string value)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashGetAsync(redisKey, hashField);
        }
        /// <summary>
        /// 从hash返回所有的字段值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<IEnumerable<RedisValue>> HashKeysAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashKeysAsync(redisKey);
        }
        /// <summary>
        /// 返回hash中所有的值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<IEnumerable<RedisValue>> HashValuesAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.HashValuesAsync(redisKey);
        }
        /// <summary>
        /// 在hash 中设定值（序列化）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public async Task<bool> HashSetAsync<T>(string redisKey, string hashField, T value)
        {
            redisKey = AddKeyPrefix(redisKey);
            var json = Serialize(value);
            return await _db.HashSetAsync(redisKey, hashField, json);
        }
        /// <summary>
        /// 在hash中获取值（反序列化）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="hashField"></param>
        /// <returns></returns>
        public async Task<T> HashGetAsync<T>(string redisKey, string hashField)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(await _db.HashGetAsync(redisKey, hashField));
        }
        #endregion

        #region list operation
        /// <summary>
        /// 移除并返回key所对应列表的第一个元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public string ListLeftPop(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListLeftPop(redisKey);
        }
        /// <summary>
        /// 移除并返回key所对应列表的最后一个元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public string ListRightPop(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListRightPop(redisKey);
        }
        /// <summary>
        /// 移除指定key及key所对应的元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public long ListRemove(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListRemove(redisKey, redisValue);
        }
        /// <summary>
        /// 在列表尾部插入值，如果键不存在，先创建再插入值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public long ListRightPush(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListRightPush(redisKey, redisValue);
        }
        /// <summary>
        /// 在列表头部插入值，如果键不存在，先创建再插入值
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public long ListLeftPush(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListLeftPush(redisKey, redisValue);
        }
        /// <summary>
        /// 返回列表上该键的长度，如果不存在，返回0
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public long ListLength(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListLength(redisKey);
        }
        /// <summary>
        /// 返回在该列表上键所对应的元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public IEnumerable<RedisValue> ListRange(string redisKey)
        {
            try
            {
                redisKey = AddKeyPrefix(redisKey);
                return _db.ListRange(redisKey);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        /// <summary>
        /// 移除并返回存储在该键列表的第一个元素
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public T ListLeftPop<T>(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(_db.ListLeftPop(redisKey));
        }
        /// <summary>
        /// 移除并返回该列表上的最后一个元素
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public T ListRightPop<T>(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(_db.ListRightPop(redisKey));
        }
        /// <summary>
        /// 在列表尾部插入值，如果键不存在，先创建再插入值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public long ListRightPush<T>(string redisKey, T redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListRightPush(redisKey, Serialize(redisValue));
        }
        /// <summary>
        /// 在列表头部插入值，如果键不存在，创建后插入值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public long ListLeftPush<T>(string redisKey, T redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.ListRightPush(redisKey, Serialize(redisValue));
        }
        /// <summary>
        /// 移除并返回存储在该键列表的第一个元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<string> ListLeftPopAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListLeftPopAsync(redisKey);
        }
        /// <summary>
        /// 移除并返回存储在该键列表的最后一个元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<string> ListRightPopAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListRightPopAsync(redisKey);
        }
        /// <summary>
        /// 移除列表指定键上与值相同的元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<long> ListRemoveAsync(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListRemoveAsync(redisKey, redisValue);
        }
        /// <summary>
        /// 在列表尾部差入值，如果键不存在，先创建后插入
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public async Task<long> ListRightPushAsync(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await ListRightPushAsync(redisKey, redisValue);
        }
        /// <summary>
        /// 在列表头部插入值，如果键不存在，先创建后插入
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public async Task<long> ListLeftPushAsync(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListLeftPushAsync(redisKey, redisValue);
        }
        /// <summary>
        /// 返回列表上的长度，如果不存在，返回0
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<long> ListLengthAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListLengthAsync(redisKey);
        }
        /// <summary>
        /// 返回在列表上键对应的元素
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<IEnumerable<RedisValue>> ListRangeAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListRangeAsync(redisKey);
        }
        /// <summary>
        /// 移除并返回存储在key对应列表的第一个元素
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<T> ListLeftPopAsync<T>(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(await _db.ListLeftPopAsync(redisKey));
        }
        /// <summary>
        /// 移除并返回存储在key 对应列表的最后一个元素
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<T> ListRightPopAsync<T>(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return Deserialize<T>(await _db.ListRightPopAsync(redisKey));
        }
        /// <summary>
        /// 在列表尾部插入值，如果值不存在，先创建后写入值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public async Task<long> ListRightPushAsync<T>(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListRightPushAsync(redisKey, Serialize(redisValue));
        }
        /// <summary>
        /// 在列表头部插入值，如果值不存在，先创建后写入值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="redisValue"></param>
        /// <returns></returns>
        public async Task<long> ListLeftPushAsync<T>(string redisKey, string redisValue)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.ListLeftPushAsync(redisKey, Serialize(redisValue));
        }
        #endregion

        #region sorted set operation
        /// <summary>
        /// sortedset 新增
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="member"></param>
        /// <param name="score"></param>
        /// <returns></returns>
        public bool SortedSetAdd(string redisKey, string member, double score)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.SortedSetAdd(redisKey, member, score);
        }
        /// <summary>
        /// 在有序集合中返回指定范围的元素，默认情况下由低到高
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public IEnumerable<RedisValue> SortedSetRangeByRank(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.SortedSetRangeByRank(redisKey);
        }
        /// <summary>
        /// 返回有序集合的个数
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public long SortedSetLength(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.SortedSetLength(redisKey);
        }
        /// <summary>
        /// 返回有序集合的元素个数
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="member"></param>
        /// <returns></returns>
        public bool SortedSetLength(string redisKey, string member)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.SortedSetRemove(redisKey, member);
        }
        /// <summary>
        ///  sorted set Add
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="member"></param>
        /// <param name="score"></param>
        /// <returns></returns>
        public bool SortedSetAdd<T>(string redisKey, T member, double score)
        {
            redisKey = AddKeyPrefix(redisKey);
            var json = Serialize(member);
            return _db.SortedSetAdd(redisKey, json, score);
        }
        /// <summary>
        /// sorted set add
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="member"></param>
        /// <param name="score"></param>
        /// <returns></returns>
        public async Task<bool> SortedSetAddAsync(string redisKey, string member, double score)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.SortedSetAddAsync(redisKey, member, score);
        }
        /// <summary>
        /// 在有序集合中返回指定范围的元素，默认情况下由低到高
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<IEnumerable<RedisValue>> SortedSetRangeByRankAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.SortedSetRangeByRankAsync(redisKey);
        }
        /// <summary>
        /// 返回有序集合的元素个数
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<long> SortedSetLengthAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.SortedSetLengthAsync(redisKey);
        }
        /// <summary>
        /// 返回有序集合的元素个数
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="member"></param>
        /// <returns></returns>
        public async Task<bool> SortedSetRemoveAsync(string redisKey, string member)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.SortedSetRemoveAsync(redisKey, member);
        }
        /// <summary>
        /// SortedSet 新增
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisKey"></param>
        /// <param name="member"></param>
        /// <param name="score"></param>
        /// <returns></returns>
        public async Task<bool> SortedSetAddAsync<T>(string redisKey, T member, double score)
        {
            redisKey = AddKeyPrefix(redisKey);
            var json = Serialize(member);
            return await _db.SortedSetAddAsync(redisKey, json, score);
        }

        #endregion

        #region key operation
        /// <summary>
        /// 移除指定key
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public bool KeyDelete(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.KeyDelete(redisKey);
        }
        /// <summary>
        /// 删除指定key
        /// </summary>
        /// <param name="redisKeys"></param>
        /// <returns></returns>
        public long KeyDelete(IEnumerable<string> redisKeys)
        {
            var keys = redisKeys.Select(x => (RedisKey)AddKeyPrefix(x));
            return _db.KeyDelete(keys.ToArray());
        }
        /// <summary>
        /// 检验key是否存在
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public bool KeyExists(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.KeyExists(redisKey);
        }
        /// <summary>
        /// 重命名key
        /// </summary>
        /// <param name="oldKeyName"></param>
        /// <param name="newKeyName"></param>
        /// <returns></returns>
        public bool KeyReName(string oldKeyName, string newKeyName)
        {
            oldKeyName = AddKeyPrefix(oldKeyName);
            return _db.KeyRename(oldKeyName, newKeyName);
        }
        /// <summary>
        /// 设置key 的过期时间
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public bool KeyExpire(string redisKey, TimeSpan? expired = null)
        {
            redisKey = AddKeyPrefix(redisKey);
            return _db.KeyExpire(redisKey, expired);
        }
        /// <summary>
        /// 移除指定的key
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<bool> KeyDeleteAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.KeyDeleteAsync(redisKey);
        }
        /// <summary>
        /// 删除指定的key
        /// </summary>
        /// <param name="redisKeys"></param>
        /// <returns></returns>
        public async Task<long> KeyDeleteAsync(IEnumerable<string> redisKeys)
        {
            var keys = redisKeys.Select(x => (RedisKey)AddKeyPrefix(x));
            return await _db.KeyDeleteAsync(keys.ToArray());
        }
        /// <summary>
        /// 检验key 是否存在
        /// </summary>
        /// <param name="redisKey"></param>
        /// <returns></returns>
        public async Task<bool> KeyExistsAsync(string redisKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.KeyExistsAsync(redisKey);
        }
        /// <summary>
        /// 重命名key
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="redisNewKey"></param>
        /// <returns></returns>
        public async Task<bool> KeyRenameAsync(string redisKey, string redisNewKey)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.KeyRenameAsync(redisKey, redisNewKey);
        }
        /// <summary>
        /// 设置 key 时间
        /// </summary>
        /// <param name="redisKey"></param>
        /// <param name="expired"></param>
        /// <returns></returns>
        public async Task<bool> KeyExpireAsync(string redisKey, TimeSpan? expired)
        {
            redisKey = AddKeyPrefix(redisKey);
            return await _db.KeyExpireAsync(redisKey, expired);
        }
        #endregion

        #region Subscribe
        /// <summary>
        /// 订阅
        /// </summary>
        /// <param name="channel">频道</param>
        /// <param name="handle">事件</param>
        public void Subscribe(RedisChannel channel, Action<RedisChannel, RedisValue> handle)
        {
            //getSubscriber() 获取到指定服务器的发布者订阅者的连接
            var sub = _connMultiplexer.GetSubscriber();
            //订阅执行某些操作时改变了 优先/主动 节点广播
            sub.Subscribe(channel, handle);
        }
        /// <summary>
        /// 发布
        /// </summary>
        /// <param name="channel"></param>
        /// <param name="message"></param>
        /// <returns></returns>
        public long Publish(RedisChannel channel, RedisValue message)
        {
            var sub = _connMultiplexer.GetSubscriber();
            return sub.Publish(channel, message);
        }
        /// <summary>
        /// 发布（使用序列化）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="channel"></param>
        /// <param name="message"></param>
        /// <returns></returns>
        public long Publish<T>(RedisChannel channel, T message)
        {
            var sub = _connMultiplexer.GetSubscriber();
            return sub.Publish(channel, Serialize(message));
        }
        /// <summary>
        /// 订阅
        /// </summary>
        /// <param name="redisChannel"></param>
        /// <param name="handle"></param>
        /// <returns></returns>
        public async Task SubscribeAsync(RedisChannel redisChannel, Action<RedisChannel, RedisValue> handle)
        {
            var sub = _connMultiplexer.GetSubscriber();
            await sub.SubscribeAsync(redisChannel, handle);
        }
        /// <summary>
        /// 发布
        /// </summary>
        /// <param name="redisChannel"></param>
        /// <param name="message"></param>
        /// <returns></returns>
        public async Task<long> PublishAsync(RedisChannel redisChannel, RedisValue message)
        {
            var sub = _connMultiplexer.GetSubscriber();
            return await sub.PublishAsync(redisChannel, message);
        }
        /// <summary>
        /// 发布（使用序列化）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="redisChannel"></param>
        /// <param name="message"></param>
        /// <returns></returns>
        public async Task<long> PublishAsync<T>(RedisChannel redisChannel, T message)
        {
            var sub = _connMultiplexer.GetSubscriber();
            return await sub.PublishAsync(redisChannel, Serialize(message));
        }
        #endregion

        #region register event
        /// <summary>
        /// 注册事件
        /// </summary>
        private static void RegisterEvent()
        {
            _connMultiplexer.ConnectionRestored += ConnMultiplexer_ConnectionRestored;
            _connMultiplexer.ConnectionFailed += ConnMultiplexer_ConnectionFailed;
            _connMultiplexer.ErrorMessage += ConnMultiplexer_ErrorMessage;
            _connMultiplexer.ConfigurationChanged += ConnMultiplexer_ConfigurationChanged;
            _connMultiplexer.HashSlotMoved += ConnMultiplexer_HashSlotMoved;
            _connMultiplexer.InternalError += ConnMultiplexer_InternalError;
            _connMultiplexer.ConfigurationChangedBroadcast += ConnMultiplexer_ConfigurationChangedBroadcast;
        }
        /// <summary>
        /// 重新配置广播时(主从同步更改)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_ConfigurationChangedBroadcast(object sender, EndPointEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_ConfigurationChangedBroadcast)}: {e.EndPoint}");
        }
        /// <summary>
        /// 发生内部错误时(调试用)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_InternalError(object sender, InternalErrorEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_InternalError)}: {e.Exception}");
        }
        /// <summary>
        /// 更改集群时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_HashSlotMoved(object sender, HashSlotMovedEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_HashSlotMoved)}: {nameof(e.OldEndPoint)}-{e.OldEndPoint} To {nameof(e.NewEndPoint)}-{e.NewEndPoint} ");
        }
        /// <summary>
        /// 配置更改时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_ConfigurationChanged(object sender, EndPointEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_ConfigurationChanged)}: {e.EndPoint}");
        }
        /// <summary>
        /// 发生错误时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_ErrorMessage(object sender, RedisErrorEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_ErrorMessage)}: {e.Message}");
        }
        /// <summary>
        /// 物理连接失败时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_ConnectionFailed(object sender, ConnectionFailedEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_ConnectionFailed)}: {e.Exception}");
        }
        /// <summary>
        /// 建立物理连接时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void ConnMultiplexer_ConnectionRestored(object sender, ConnectionFailedEventArgs e)
        {
            Console.WriteLine($"{nameof(ConnMultiplexer_ConnectionRestored)}: {e.Exception}");
        }
        #endregion

        #region physical save - undo
        #endregion
    }

 

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