• StackExchange.Redis通用封装类分享


    ConnectionMultiplexer 封装

    首先是 ConnectionMultiplexer 的封装,ConnectionMultiplexer对象是StackExchange.Redis最中枢的对象。这个类的实例需要被整个应用程序域共享和重用的,所以不需要在每个操作中不停的创建该对象的实例,一般都是使用单例来创建和存放这个对象,这个在官网上也有说明。

    /// <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
        }
    
    ConnectionMultiplexer帮助类

    RedisHelper 通用操作类封

    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
    }
    
    RedisHelper
    其中CustomKey用来表示系统前缀,AddSysCustomKey方法对每个key都进行前缀的添加处理,这里推荐大家在命名redis的key的时候最好的加上前缀,并且使用 :来分割前缀 ,这里在使用可视化工具查看的时候就比较好区分,比如我的的前缀是 Demo:test:(一般是  系统名:业务名:),然后你查看的时候你会发现整齐,好区分了很多

    String类型的封装

    #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
    
    String

    这里说一下,StackExchange.Redis 中对对象的存储是不自带序列化和反序列化的方法,所以在ConvertJson和ConvertObj里面我是使用了JsonConvert来操作,如果需要换成其他的序列化和序列化,直接修改这两个方面就好了,另外,StackExchange.Redis 相对于ServiceStack.Redis 来说提供了异步的方法,所以这里也同样封装了异步和同步的方法。

    List类型的封装

    #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
    
    List

    Hash类型的封装

    #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
    
    Hash

    SortedSet 类型的封装

    #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
    
    SortedSet

    key的管理

    #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
    
    Key

    发布和订阅

    #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
    
    发布订阅

    其他

    #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

    以上就是对StackExchange.Redis基本操作的通用封装,提供给大家学习参考,如果有哪里写错的,也希望能一起交流。

      问题:

      StackExchange.Redis没有提供Redis分布式锁的操作么?ServiceStack.Redis 提供了AcquireLock 的方法来操作,StackExchange.Redis 源码中只找到了LockTake的方法,并没有找到其他的方法了,如果有人使用过,还希望能提供下。

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  • 原文地址:https://www.cnblogs.com/yaphetsfang/p/10132466.html
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