【Rdeis 21】StackExchange.Redis通用封装类分享

阅读目录

ConnectionMultiplexer 封装
RedisHelper 通用操作类封
String类型的封装
List类型的封装
Hash类型的封装
SortedSet 类型的封装
key的管理
发布和订阅
其他

　　前两天朋友问我，有没有使用过StackExchange.Redis，问我要个封装类，由于之前都是使用ServiceStack.Redis，由于ServiceStack.Redis v4版本后是收费版的，所以现在也很有公司都在使用StackExchange.Redis而抛弃ServiceStack.Redis了。其实个人觉得，两个驱动都不错，只是由于ServiceStack.Redis收费导致目前很多公司都是基于V3版本的使用，也有人说V3版本有很多Bug，没有维护和升级，不过至少目前我是没发现Bug。

　　不过ServiceStack.Redis同StackExchange.Redis比较，抛开收费的来说，确认比StackExchange.Redis 更有优势。StackExchange.Redis文档很少，更不要说国内的文档了，连github上面对应的介绍文档都是很片面，这点我真的觉得StackExchange.Redis的作者至少要完善下文档，很多都是要看源码的例子才有。网上对StackExchange.Redis的使用例子也比ServiceStack.Redis少得多，不是说没人用，只是我查来查去，大部分都是基于String类型的数据进行使用的封装类，对于List，SortedSet，Hash的封装操作都很少，基本都是东写一点，西写一点，很难找到完整的。在参考了一些文章和源码后，这里提供一个自己封装的类，基本提供对于各种类型的使用封装，提供给大家学习使用，如果有哪里写的不好的，大家也可以互相交流。

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　　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。

  1  /// <summary>
  2     /// ConnectionMultiplexer对象管理帮助类
  3     /// </summary>
  4     public static class RedisConnectionHelp
  5     {
  6         //系统自定义Key前缀
  7         public static readonly string SysCustomKey = ConfigurationManager.AppSettings["redisKey"] ?? "";
  8 
  9         //"127.0.0.1:6379,allowadmin=true
 10         private static readonly string RedisConnectionString = ConfigurationManager.ConnectionStrings["RedisExchangeHosts"].ConnectionString;
 11 
 12         private static readonly object Locker = new object();
 13         private static ConnectionMultiplexer _instance;
 14         private static readonly ConcurrentDictionary<string, ConnectionMultiplexer> ConnectionCache = new ConcurrentDictionary<string, ConnectionMultiplexer>();
 15 
 16         /// <summary>
 17         /// 单例获取
 18         /// </summary>
 19         public static ConnectionMultiplexer Instance
 20         {
 21             get
 22             {
 23                 if (_instance == null)
 24                 {
 25                     lock (Locker)
 26                     {
 27                         if (_instance == null || !_instance.IsConnected)
 28                         {
 29                             _instance = GetManager();
 30                         }
 31                     }
 32                 }
 33                 return _instance;
 34             }
 35         }
 36 
 37         /// <summary>
 38         /// 缓存获取
 39         /// </summary>
 40         /// <param name="connectionString"></param>
 41         /// <returns></returns>
 42         public static ConnectionMultiplexer GetConnectionMultiplexer(string connectionString)
 43         {
 44             if (!ConnectionCache.ContainsKey(connectionString))
 45             {
 46                 ConnectionCache[connectionString] = GetManager(connectionString);
 47             }
 48             return ConnectionCache[connectionString];
 49         }
 50 
 51         private static ConnectionMultiplexer GetManager(string connectionString = null)
 52         {
 53             connectionString = connectionString ?? RedisConnectionString;
 54             var connect = ConnectionMultiplexer.Connect(connectionString);
 55 
 56             //注册如下事件
 57             connect.ConnectionFailed += MuxerConnectionFailed;
 58             connect.ConnectionRestored += MuxerConnectionRestored;
 59             connect.ErrorMessage += MuxerErrorMessage;
 60             connect.ConfigurationChanged += MuxerConfigurationChanged;
 61             connect.HashSlotMoved += MuxerHashSlotMoved;
 62             connect.InternalError += MuxerInternalError;
 63 
 64             return connect;
 65         }
 66 
 67         #region 事件
 68 
 69         /// <summary>
 70         /// 配置更改时
 71         /// </summary>
 72         /// <param name="sender"></param>
 73         /// <param name="e"></param>
 74         private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e)
 75         {
 76             Console.WriteLine("Configuration changed: " + e.EndPoint);
 77         }
 78 
 79         /// <summary>
 80         /// 发生错误时
 81         /// </summary>
 82         /// <param name="sender"></param>
 83         /// <param name="e"></param>
 84         private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e)
 85         {
 86             Console.WriteLine("ErrorMessage: " + e.Message);
 87         }
 88 
 89         /// <summary>
 90         /// 重新建立连接之前的错误
 91         /// </summary>
 92         /// <param name="sender"></param>
 93         /// <param name="e"></param>
 94         private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e)
 95         {
 96             Console.WriteLine("ConnectionRestored: " + e.EndPoint);
 97         }
 98 
 99         /// <summary>
100         /// 连接失败 ， 如果重新连接成功你将不会收到这个通知
101         /// </summary>
102         /// <param name="sender"></param>
103         /// <param name="e"></param>
104         private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e)
105         {
106             Console.WriteLine("重新连接：Endpoint failed: " + e.EndPoint + ", " + e.FailureType + (e.Exception == null ? "" : (", " + e.Exception.Message)));
107         }
108 
109         /// <summary>
110         /// 更改集群
111         /// </summary>
112         /// <param name="sender"></param>
113         /// <param name="e"></param>
114         private static void MuxerHashSlotMoved(object sender, HashSlotMovedEventArgs e)
115         {
116             Console.WriteLine("HashSlotMoved:NewEndPoint" + e.NewEndPoint + ", OldEndPoint" + e.OldEndPoint);
117         }
118 
119         /// <summary>
120         /// redis类库错误
121         /// </summary>
122         /// <param name="sender"></param>
123         /// <param name="e"></param>
124         private static void MuxerInternalError(object sender, InternalErrorEventArgs e)
125         {
126             Console.WriteLine("InternalError:Message" + e.Exception.Message);
127         }
128 
129         #endregion 事件
130     }

ConnectionMultiplexer帮助类

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　　RedisHelper 通用操作类封　　

 1  public class RedisHelper
 2     {
 3         private int DbNum { get; }
 4         private readonly ConnectionMultiplexer _conn;
 5         public string CustomKey;
 6 
 7         #region 构造函数
 8 
 9         public RedisHelper(int dbNum = 0)
10                 : this(dbNum, null)
11         {
12         }
13 
14         public RedisHelper(int dbNum, string readWriteHosts)
15         {
16             DbNum = dbNum;
17             _conn =
18                 string.IsNullOrWhiteSpace(readWriteHosts) ?
19                 RedisConnectionHelp.Instance :
20                 RedisConnectionHelp.GetConnectionMultiplexer(readWriteHosts);
21         }
22 
23 #region 辅助方法
24 
25         private string AddSysCustomKey(string oldKey)
26         {
27             var prefixKey = CustomKey ?? RedisConnectionHelp.SysCustomKey;
28             return prefixKey + oldKey;
29         }
30 
31         private T Do<T>(Func<IDatabase, T> func)
32         {
33             var database = _conn.GetDatabase(DbNum);
34             return func(database);
35         }
36 
37         private string ConvertJson<T>(T value)
38         {
39             string result = value is string ? value.ToString() : JsonConvert.SerializeObject(value);
40             return result;
41         }
42 
43         private T ConvertObj<T>(RedisValue value)
44         {
45             return JsonConvert.DeserializeObject<T>(value);
46         }
47 
48         private List<T> ConvetList<T>(RedisValue[] values)
49         {
50             List<T> result = new List<T>();
51             foreach (var item in values)
52             {
53                 var model = ConvertObj<T>(item);
54                 result.Add(model);
55             }
56             return result;
57         }
58 
59         private RedisKey[] ConvertRedisKeys(List<string> redisKeys)
60         {
61             return redisKeys.Select(redisKey => (RedisKey)redisKey).ToArray();
62         }
63 
64         #endregion 辅助方法
65 
66         #endregion 构造函数
67 }

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

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　　String类型的封装

  1 #region String
  2 
  3         #region 同步方法
  4 
  5         /// <summary>
  6         /// 保存单个key value
  7         /// </summary>
  8         /// <param name="key">Redis Key</param>
  9         /// <param name="value">保存的值</param>
 10         /// <param name="expiry">过期时间</param>
 11         /// <returns></returns>
 12         public bool StringSet(string key, string value, TimeSpan? expiry = default(TimeSpan?))
 13         {
 14             key = AddSysCustomKey(key);
 15             return Do(db => db.StringSet(key, value, expiry));
 16         }
 17 
 18         /// <summary>
 19         /// 保存多个key value
 20         /// </summary>
 21         /// <param name="keyValues">键值对</param>
 22         /// <returns></returns>
 23         public bool StringSet(List<KeyValuePair<RedisKey, RedisValue>> keyValues)
 24         {
 25             List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =
 26                 keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();
 27             return Do(db => db.StringSet(newkeyValues.ToArray()));
 28         }
 29 
 30         /// <summary>
 31         /// 保存一个对象
 32         /// </summary>
 33         /// <typeparam name="T"></typeparam>
 34         /// <param name="key"></param>
 35         /// <param name="obj"></param>
 36         /// <param name="expiry"></param>
 37         /// <returns></returns>
 38         public bool StringSet<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
 39         {
 40             key = AddSysCustomKey(key);
 41             string json = ConvertJson(obj);
 42             return Do(db => db.StringSet(key, json, expiry));
 43         }
 44 
 45         /// <summary>
 46         /// 获取单个key的值
 47         /// </summary>
 48         /// <param name="key">Redis Key</param>
 49         /// <returns></returns>
 50         public string StringGet(string key)
 51         {
 52             key = AddSysCustomKey(key);
 53             return Do(db => db.StringGet(key));
 54         }
 55 
 56         /// <summary>
 57         /// 获取多个Key
 58         /// </summary>
 59         /// <param name="listKey">Redis Key集合</param>
 60         /// <returns></returns>
 61         public RedisValue[] StringGet(List<string> listKey)
 62         {
 63             List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
 64             return Do(db => db.StringGet(ConvertRedisKeys(newKeys)));
 65         }
 66 
 67         /// <summary>
 68         /// 获取一个key的对象
 69         /// </summary>
 70         /// <typeparam name="T"></typeparam>
 71         /// <param name="key"></param>
 72         /// <returns></returns>
 73         public T StringGet<T>(string key)
 74         {
 75             key = AddSysCustomKey(key);
 76             return Do(db => ConvertObj<T>(db.StringGet(key)));
 77         }
 78 
 79         /// <summary>
 80         /// 为数字增长val
 81         /// </summary>
 82         /// <param name="key"></param>
 83         /// <param name="val">可以为负</param>
 84         /// <returns>增长后的值</returns>
 85         public double StringIncrement(string key, double val = 1)
 86         {
 87             key = AddSysCustomKey(key);
 88             return Do(db => db.StringIncrement(key, val));
 89         }
 90 
 91         /// <summary>
 92         /// 为数字减少val
 93         /// </summary>
 94         /// <param name="key"></param>
 95         /// <param name="val">可以为负</param>
 96         /// <returns>减少后的值</returns>
 97         public double StringDecrement(string key, double val = 1)
 98         {
 99             key = AddSysCustomKey(key);
100             return Do(db => db.StringDecrement(key, val));
101         }
102 
103         #endregion 同步方法
104 
105         #region 异步方法
106 
107         /// <summary>
108         /// 保存单个key value
109         /// </summary>
110         /// <param name="key">Redis Key</param>
111         /// <param name="value">保存的值</param>
112         /// <param name="expiry">过期时间</param>
113         /// <returns></returns>
114         public async Task<bool> StringSetAsync(string key, string value, TimeSpan? expiry = default(TimeSpan?))
115         {
116             key = AddSysCustomKey(key);
117             return await Do(db => db.StringSetAsync(key, value, expiry));
118         }
119 
120         /// <summary>
121         /// 保存多个key value
122         /// </summary>
123         /// <param name="keyValues">键值对</param>
124         /// <returns></returns>
125         public async Task<bool> StringSetAsync(List<KeyValuePair<RedisKey, RedisValue>> keyValues)
126         {
127             List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =
128                 keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();
129             return await Do(db => db.StringSetAsync(newkeyValues.ToArray()));
130         }
131 
132         /// <summary>
133         /// 保存一个对象
134         /// </summary>
135         /// <typeparam name="T"></typeparam>
136         /// <param name="key"></param>
137         /// <param name="obj"></param>
138         /// <param name="expiry"></param>
139         /// <returns></returns>
140         public async Task<bool> StringSetAsync<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
141         {
142             key = AddSysCustomKey(key);
143             string json = ConvertJson(obj);
144             return await Do(db => db.StringSetAsync(key, json, expiry));
145         }
146 
147         /// <summary>
148         /// 获取单个key的值
149         /// </summary>
150         /// <param name="key">Redis Key</param>
151         /// <returns></returns>
152         public async Task<string> StringGetAsync(string key)
153         {
154             key = AddSysCustomKey(key);
155             return await Do(db => db.StringGetAsync(key));
156         }
157 
158         /// <summary>
159         /// 获取多个Key
160         /// </summary>
161         /// <param name="listKey">Redis Key集合</param>
162         /// <returns></returns>
163         public async Task<RedisValue[]> StringGetAsync(List<string> listKey)
164         {
165             List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
166             return await Do(db => db.StringGetAsync(ConvertRedisKeys(newKeys)));
167         }
168 
169         /// <summary>
170         /// 获取一个key的对象
171         /// </summary>
172         /// <typeparam name="T"></typeparam>
173         /// <param name="key"></param>
174         /// <returns></returns>
175         public async Task<T> StringGetAsync<T>(string key)
176         {
177             key = AddSysCustomKey(key);
178             string result = await Do(db => db.StringGetAsync(key));
179             return ConvertObj<T>(result);
180         }
181 
182         /// <summary>
183         /// 为数字增长val
184         /// </summary>
185         /// <param name="key"></param>
186         /// <param name="val">可以为负</param>
187         /// <returns>增长后的值</returns>
188         public async Task<double> StringIncrementAsync(string key, double val = 1)
189         {
190             key = AddSysCustomKey(key);
191             return await Do(db => db.StringIncrementAsync(key, val));
192         }
193 
194         /// <summary>
195         /// 为数字减少val
196         /// </summary>
197         /// <param name="key"></param>
198         /// <param name="val">可以为负</param>
199         /// <returns>减少后的值</returns>
200         public async Task<double> StringDecrementAsync(string key, double val = 1)
201         {
202             key = AddSysCustomKey(key);
203             return await Do(db => db.StringDecrementAsync(key, val));
204         }
205 
206         #endregion 异步方法
207 
208         #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。

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　　List类型的封装

  1 #region List
  2 
  3         #region 同步方法
  4 
  5         /// <summary>
  6         /// 移除指定ListId的内部List的值
  7         /// </summary>
  8         /// <param name="key"></param>
  9         /// <param name="value"></param>
 10         public void ListRemove<T>(string key, T value)
 11         {
 12             key = AddSysCustomKey(key);
 13             Do(db => db.ListRemove(key, ConvertJson(value)));
 14         }
 15 
 16         /// <summary>
 17         /// 获取指定key的List
 18         /// </summary>
 19         /// <param name="key"></param>
 20         /// <returns></returns>
 21         public List<T> ListRange<T>(string key)
 22         {
 23             key = AddSysCustomKey(key);
 24             return Do(redis =>
 25             {
 26                 var values = redis.ListRange(key);
 27                 return ConvetList<T>(values);
 28             });
 29         }
 30 
 31         /// <summary>
 32         /// 入队
 33         /// </summary>
 34         /// <param name="key"></param>
 35         /// <param name="value"></param>
 36         public void ListRightPush<T>(string key, T value)
 37         {
 38             key = AddSysCustomKey(key);
 39             Do(db => db.ListRightPush(key, ConvertJson(value)));
 40         }
 41 
 42         /// <summary>
 43         /// 出队
 44         /// </summary>
 45         /// <typeparam name="T"></typeparam>
 46         /// <param name="key"></param>
 47         /// <returns></returns>
 48         public T ListRightPop<T>(string key)
 49         {
 50             key = AddSysCustomKey(key);
 51             return Do(db =>
 52              {
 53                  var value = db.ListRightPop(key);
 54                  return ConvertObj<T>(value);
 55              });
 56         }
 57 
 58         /// <summary>
 59         /// 入栈
 60         /// </summary>
 61         /// <typeparam name="T"></typeparam>
 62         /// <param name="key"></param>
 63         /// <param name="value"></param>
 64         public void ListLeftPush<T>(string key, T value)
 65         {
 66             key = AddSysCustomKey(key);
 67             Do(db => db.ListLeftPush(key, ConvertJson(value)));
 68         }
 69 
 70         /// <summary>
 71         /// 出栈
 72         /// </summary>
 73         /// <typeparam name="T"></typeparam>
 74         /// <param name="key"></param>
 75         /// <returns></returns>
 76         public T ListLeftPop<T>(string key)
 77         {
 78             key = AddSysCustomKey(key);
 79             return Do(db =>
 80             {
 81                 var value = db.ListLeftPop(key);
 82                 return ConvertObj<T>(value);
 83             });
 84         }
 85 
 86         /// <summary>
 87         /// 获取集合中的数量
 88         /// </summary>
 89         /// <param name="key"></param>
 90         /// <returns></returns>
 91         public long ListLength(string key)
 92         {
 93             key = AddSysCustomKey(key);
 94             return Do(redis => redis.ListLength(key));
 95         }
 96 
 97         #endregion 同步方法
 98 
 99         #region 异步方法
100 
101         /// <summary>
102         /// 移除指定ListId的内部List的值
103         /// </summary>
104         /// <param name="key"></param>
105         /// <param name="value"></param>
106         public async Task<long> ListRemoveAsync<T>(string key, T value)
107         {
108             key = AddSysCustomKey(key);
109             return await Do(db => db.ListRemoveAsync(key, ConvertJson(value)));
110         }
111 
112         /// <summary>
113         /// 获取指定key的List
114         /// </summary>
115         /// <param name="key"></param>
116         /// <returns></returns>
117         public async Task<List<T>> ListRangeAsync<T>(string key)
118         {
119             key = AddSysCustomKey(key);
120             var values = await Do(redis => redis.ListRangeAsync(key));
121             return ConvetList<T>(values);
122         }
123 
124         /// <summary>
125         /// 入队
126         /// </summary>
127         /// <param name="key"></param>
128         /// <param name="value"></param>
129         public async Task<long> ListRightPushAsync<T>(string key, T value)
130         {
131             key = AddSysCustomKey(key);
132             return await Do(db => db.ListRightPushAsync(key, ConvertJson(value)));
133         }
134 
135         /// <summary>
136         /// 出队
137         /// </summary>
138         /// <typeparam name="T"></typeparam>
139         /// <param name="key"></param>
140         /// <returns></returns>
141         public async Task<T> ListRightPopAsync<T>(string key)
142         {
143             key = AddSysCustomKey(key);
144             var value = await Do(db => db.ListRightPopAsync(key));
145             return ConvertObj<T>(value);
146         }
147 
148         /// <summary>
149         /// 入栈
150         /// </summary>
151         /// <typeparam name="T"></typeparam>
152         /// <param name="key"></param>
153         /// <param name="value"></param>
154         public async Task<long> ListLeftPushAsync<T>(string key, T value)
155         {
156             key = AddSysCustomKey(key);
157             return await Do(db => db.ListLeftPushAsync(key, ConvertJson(value)));
158         }
159 
160         /// <summary>
161         /// 出栈
162         /// </summary>
163         /// <typeparam name="T"></typeparam>
164         /// <param name="key"></param>
165         /// <returns></returns>
166         public async Task<T> ListLeftPopAsync<T>(string key)
167         {
168             key = AddSysCustomKey(key);
169             var value = await Do(db => db.ListLeftPopAsync(key));
170             return ConvertObj<T>(value);
171         }
172 
173         /// <summary>
174         /// 获取集合中的数量
175         /// </summary>
176         /// <param name="key"></param>
177         /// <returns></returns>
178         public async Task<long> ListLengthAsync(string key)
179         {
180             key = AddSysCustomKey(key);
181             return await Do(redis => redis.ListLengthAsync(key));
182         }
183 
184         #endregion 异步方法
185 
186         #endregion List

List

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　　Hash类型的封装

  1 #region Hash
  2 
  3         #region 同步方法
  4 
  5         /// <summary>
  6         /// 判断某个数据是否已经被缓存
  7         /// </summary>
  8         /// <param name="key"></param>
  9         /// <param name="dataKey"></param>
 10         /// <returns></returns>
 11         public bool HashExists(string key, string dataKey)
 12         {
 13             key = AddSysCustomKey(key);
 14             return Do(db => db.HashExists(key, dataKey));
 15         }
 16 
 17         /// <summary>
 18         /// 存储数据到hash表
 19         /// </summary>
 20         /// <typeparam name="T"></typeparam>
 21         /// <param name="key"></param>
 22         /// <param name="dataKey"></param>
 23         /// <param name="t"></param>
 24         /// <returns></returns>
 25         public bool HashSet<T>(string key, string dataKey, T t)
 26         {
 27             key = AddSysCustomKey(key);
 28             return Do(db =>
 29             {
 30                 string json = ConvertJson(t);
 31                 return db.HashSet(key, dataKey, json);
 32             });
 33         }
 34 
 35         /// <summary>
 36         /// 移除hash中的某值
 37         /// </summary>
 38         /// <param name="key"></param>
 39         /// <param name="dataKey"></param>
 40         /// <returns></returns>
 41         public bool HashDelete(string key, string dataKey)
 42         {
 43             key = AddSysCustomKey(key);
 44             return Do(db => db.HashDelete(key, dataKey));
 45         }
 46 
 47         /// <summary>
 48         /// 移除hash中的多个值
 49         /// </summary>
 50         /// <param name="key"></param>
 51         /// <param name="dataKeys"></param>
 52         /// <returns></returns>
 53         public long HashDelete(string key, List<RedisValue> dataKeys)
 54         {
 55             key = AddSysCustomKey(key);
 56             //List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};
 57             return Do(db => db.HashDelete(key, dataKeys.ToArray()));
 58         }
 59 
 60         /// <summary>
 61         /// 从hash表获取数据
 62         /// </summary>
 63         /// <typeparam name="T"></typeparam>
 64         /// <param name="key"></param>
 65         /// <param name="dataKey"></param>
 66         /// <returns></returns>
 67         public T HashGet<T>(string key, string dataKey)
 68         {
 69             key = AddSysCustomKey(key);
 70             return Do(db =>
 71             {
 72                 string value = db.HashGet(key, dataKey);
 73                 return ConvertObj<T>(value);
 74             });
 75         }
 76 
 77         /// <summary>
 78         /// 为数字增长val
 79         /// </summary>
 80         /// <param name="key"></param>
 81         /// <param name="dataKey"></param>
 82         /// <param name="val">可以为负</param>
 83         /// <returns>增长后的值</returns>
 84         public double HashIncrement(string key, string dataKey, double val = 1)
 85         {
 86             key = AddSysCustomKey(key);
 87             return Do(db => db.HashIncrement(key, dataKey, val));
 88         }
 89 
 90         /// <summary>
 91         /// 为数字减少val
 92         /// </summary>
 93         /// <param name="key"></param>
 94         /// <param name="dataKey"></param>
 95         /// <param name="val">可以为负</param>
 96         /// <returns>减少后的值</returns>
 97         public double HashDecrement(string key, string dataKey, double val = 1)
 98         {
 99             key = AddSysCustomKey(key);
100             return Do(db => db.HashDecrement(key, dataKey, val));
101         }
102 
103         /// <summary>
104         /// 获取hashkey所有Redis key
105         /// </summary>
106         /// <typeparam name="T"></typeparam>
107         /// <param name="key"></param>
108         /// <returns></returns>
109         public List<T> HashKeys<T>(string key)
110         {
111             key = AddSysCustomKey(key);
112             return Do(db =>
113             {
114                 RedisValue[] values = db.HashKeys(key);
115                 return ConvetList<T>(values);
116             });
117         }
118 
119         #endregion 同步方法
120 
121         #region 异步方法
122 
123         /// <summary>
124         /// 判断某个数据是否已经被缓存
125         /// </summary>
126         /// <param name="key"></param>
127         /// <param name="dataKey"></param>
128         /// <returns></returns>
129         public async Task<bool> HashExistsAsync(string key, string dataKey)
130         {
131             key = AddSysCustomKey(key);
132             return await Do(db => db.HashExistsAsync(key, dataKey));
133         }
134 
135         /// <summary>
136         /// 存储数据到hash表
137         /// </summary>
138         /// <typeparam name="T"></typeparam>
139         /// <param name="key"></param>
140         /// <param name="dataKey"></param>
141         /// <param name="t"></param>
142         /// <returns></returns>
143         public async Task<bool> HashSetAsync<T>(string key, string dataKey, T t)
144         {
145             key = AddSysCustomKey(key);
146             return await Do(db =>
147             {
148                 string json = ConvertJson(t);
149                 return db.HashSetAsync(key, dataKey, json);
150             });
151         }
152 
153         /// <summary>
154         /// 移除hash中的某值
155         /// </summary>
156         /// <param name="key"></param>
157         /// <param name="dataKey"></param>
158         /// <returns></returns>
159         public async Task<bool> HashDeleteAsync(string key, string dataKey)
160         {
161             key = AddSysCustomKey(key);
162             return await Do(db => db.HashDeleteAsync(key, dataKey));
163         }
164 
165         /// <summary>
166         /// 移除hash中的多个值
167         /// </summary>
168         /// <param name="key"></param>
169         /// <param name="dataKeys"></param>
170         /// <returns></returns>
171         public async Task<long> HashDeleteAsync(string key, List<RedisValue> dataKeys)
172         {
173             key = AddSysCustomKey(key);
174             //List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};
175             return await Do(db => db.HashDeleteAsync(key, dataKeys.ToArray()));
176         }
177 
178         /// <summary>
179         /// 从hash表获取数据
180         /// </summary>
181         /// <typeparam name="T"></typeparam>
182         /// <param name="key"></param>
183         /// <param name="dataKey"></param>
184         /// <returns></returns>
185         public async Task<T> HashGeAsync<T>(string key, string dataKey)
186         {
187             key = AddSysCustomKey(key);
188             string value = await Do(db => db.HashGetAsync(key, dataKey));
189             return ConvertObj<T>(value);
190         }
191 
192         /// <summary>
193         /// 为数字增长val
194         /// </summary>
195         /// <param name="key"></param>
196         /// <param name="dataKey"></param>
197         /// <param name="val">可以为负</param>
198         /// <returns>增长后的值</returns>
199         public async Task<double> HashIncrementAsync(string key, string dataKey, double val = 1)
200         {
201             key = AddSysCustomKey(key);
202             return await Do(db => db.HashIncrementAsync(key, dataKey, val));
203         }
204 
205         /// <summary>
206         /// 为数字减少val
207         /// </summary>
208         /// <param name="key"></param>
209         /// <param name="dataKey"></param>
210         /// <param name="val">可以为负</param>
211         /// <returns>减少后的值</returns>
212         public async Task<double> HashDecrementAsync(string key, string dataKey, double val = 1)
213         {
214             key = AddSysCustomKey(key);
215             return await Do(db => db.HashDecrementAsync(key, dataKey, val));
216         }
217 
218         /// <summary>
219         /// 获取hashkey所有Redis key
220         /// </summary>
221         /// <typeparam name="T"></typeparam>
222         /// <param name="key"></param>
223         /// <returns></returns>
224         public async Task<List<T>> HashKeysAsync<T>(string key)
225         {
226             key = AddSysCustomKey(key);
227             RedisValue[] values = await Do(db => db.HashKeysAsync(key));
228             return ConvetList<T>(values);
229         }
230 
231         #endregion 异步方法
232 
233         #endregion Hash

Hash

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　　SortedSet 类型的封装

  1 #region SortedSet 有序集合
  2 
  3         #region 同步方法
  4 
  5         /// <summary>
  6         /// 添加
  7         /// </summary>
  8         /// <param name="key"></param>
  9         /// <param name="value"></param>
 10         /// <param name="score"></param>
 11         public bool SortedSetAdd<T>(string key, T value, double score)
 12         {
 13             key = AddSysCustomKey(key);
 14             return Do(redis => redis.SortedSetAdd(key, ConvertJson<T>(value), score));
 15         }
 16 
 17         /// <summary>
 18         /// 删除
 19         /// </summary>
 20         /// <param name="key"></param>
 21         /// <param name="value"></param>
 22         public bool SortedSetRemove<T>(string key, T value)
 23         {
 24             key = AddSysCustomKey(key);
 25             return Do(redis => redis.SortedSetRemove(key, ConvertJson(value)));
 26         }
 27 
 28         /// <summary>
 29         /// 获取全部
 30         /// </summary>
 31         /// <param name="key"></param>
 32         /// <returns></returns>
 33         public List<T> SortedSetRangeByRank<T>(string key)
 34         {
 35             key = AddSysCustomKey(key);
 36             return Do(redis =>
 37             {
 38                 var values = redis.SortedSetRangeByRank(key);
 39                 return ConvetList<T>(values);
 40             });
 41         }
 42 
 43         /// <summary>
 44         /// 获取集合中的数量
 45         /// </summary>
 46         /// <param name="key"></param>
 47         /// <returns></returns>
 48         public long SortedSetLength(string key)
 49         {
 50             key = AddSysCustomKey(key);
 51             return Do(redis => redis.SortedSetLength(key));
 52         }
 53 
 54         #endregion 同步方法
 55 
 56         #region 异步方法
 57 
 58         /// <summary>
 59         /// 添加
 60         /// </summary>
 61         /// <param name="key"></param>
 62         /// <param name="value"></param>
 63         /// <param name="score"></param>
 64         public async Task<bool> SortedSetAddAsync<T>(string key, T value, double score)
 65         {
 66             key = AddSysCustomKey(key);
 67             return await Do(redis => redis.SortedSetAddAsync(key, ConvertJson<T>(value), score));
 68         }
 69 
 70         /// <summary>
 71         /// 删除
 72         /// </summary>
 73         /// <param name="key"></param>
 74         /// <param name="value"></param>
 75         public async Task<bool> SortedSetRemoveAsync<T>(string key, T value)
 76         {
 77             key = AddSysCustomKey(key);
 78             return await Do(redis => redis.SortedSetRemoveAsync(key, ConvertJson(value)));
 79         }
 80 
 81         /// <summary>
 82         /// 获取全部
 83         /// </summary>
 84         /// <param name="key"></param>
 85         /// <returns></returns>
 86         public async Task<List<T>> SortedSetRangeByRankAsync<T>(string key)
 87         {
 88             key = AddSysCustomKey(key);
 89             var values = await Do(redis => redis.SortedSetRangeByRankAsync(key));
 90             return ConvetList<T>(values);
 91         }
 92 
 93         /// <summary>
 94         /// 获取集合中的数量
 95         /// </summary>
 96         /// <param name="key"></param>
 97         /// <returns></returns>
 98         public async Task<long> SortedSetLengthAsync(string key)
 99         {
100             key = AddSysCustomKey(key);
101             return await Do(redis => redis.SortedSetLengthAsync(key));
102         }
103 
104         #endregion 异步方法
105 
106         #endregion SortedSet 有序集合

SortedSet

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　　key的管理

 1 #region key
 2 
 3         /// <summary>
 4         /// 删除单个key
 5         /// </summary>
 6         /// <param name="key">redis key</param>
 7         /// <returns>是否删除成功</returns>
 8         public bool KeyDelete(string key)
 9         {
10             key = AddSysCustomKey(key);
11             return Do(db => db.KeyDelete(key));
12         }
13 
14         /// <summary>
15         /// 删除多个key
16         /// </summary>
17         /// <param name="keys">rediskey</param>
18         /// <returns>成功删除的个数</returns>
19         public long KeyDelete(List<string> keys)
20         {
21             List<string> newKeys = keys.Select(AddSysCustomKey).ToList();
22             return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));
23         }
24 
25         /// <summary>
26         /// 判断key是否存储
27         /// </summary>
28         /// <param name="key">redis key</param>
29         /// <returns></returns>
30         public bool KeyExists(string key)
31         {
32             key = AddSysCustomKey(key);
33             return Do(db => db.KeyExists(key));
34         }
35 
36         /// <summary>
37         /// 重新命名key
38         /// </summary>
39         /// <param name="key">就的redis key</param>
40         /// <param name="newKey">新的redis key</param>
41         /// <returns></returns>
42         public bool KeyRename(string key, string newKey)
43         {
44             key = AddSysCustomKey(key);
45             return Do(db => db.KeyRename(key, newKey));
46         }
47 
48         /// <summary>
49         /// 设置Key的时间
50         /// </summary>
51         /// <param name="key">redis key</param>
52         /// <param name="expiry"></param>
53         /// <returns></returns>
54         public bool KeyExpire(string key, TimeSpan? expiry = default(TimeSpan?))
55         {
56             key = AddSysCustomKey(key);
57             return Do(db => db.KeyExpire(key, expiry));
58         }
59 
60         #endregion key

Key

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　　发布和订阅

 1 #region 发布订阅
 2 
 3         /// <summary>
 4         /// Redis发布订阅  订阅
 5         /// </summary>
 6         /// <param name="subChannel"></param>
 7         /// <param name="handler"></param>
 8         public void Subscribe(string subChannel, Action<RedisChannel, RedisValue> handler = null)
 9         {
10             ISubscriber sub = _conn.GetSubscriber();
11             sub.Subscribe(subChannel, (channel, message) =>
12             {
13                 if (handler == null)
14                 {
15                     Console.WriteLine(subChannel + " 订阅收到消息：" + message);
16                 }
17                 else
18                 {
19                     handler(channel, message);
20                 }
21             });
22         }
23 
24         /// <summary>
25         /// Redis发布订阅  发布
26         /// </summary>
27         /// <typeparam name="T"></typeparam>
28         /// <param name="channel"></param>
29         /// <param name="msg"></param>
30         /// <returns></returns>
31         public long Publish<T>(string channel, T msg)
32         {
33             ISubscriber sub = _conn.GetSubscriber();
34             return sub.Publish(channel, ConvertJson(msg));
35         }
36 
37         /// <summary>
38         /// Redis发布订阅  取消订阅
39         /// </summary>
40         /// <param name="channel"></param>
41         public void Unsubscribe(string channel)
42         {
43             ISubscriber sub = _conn.GetSubscriber();
44             sub.Unsubscribe(channel);
45         }
46 
47         /// <summary>
48         /// Redis发布订阅  取消全部订阅
49         /// </summary>
50         public void UnsubscribeAll()
51         {
52             ISubscriber sub = _conn.GetSubscriber();
53             sub.UnsubscribeAll();
54         }
55 
56         #endregion 发布订阅

发布订阅

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　　其他

 1  #region 其他
 2 
 3         public ITransaction CreateTransaction()
 4         {
 5             return GetDatabase().CreateTransaction();
 6         }
 7 
 8         public IDatabase GetDatabase()
 9         {
10             return _conn.GetDatabase(DbNum);
11         }
12 
13         public IServer GetServer(string hostAndPort)
14         {
15             return _conn.GetServer(hostAndPort);
16         }
17 
18         /// <summary>
19         /// 设置前缀
20         /// </summary>
21         /// <param name="customKey"></param>
22         public void SetSysCustomKey(string customKey)
23         {
24             CustomKey = customKey;
25         }
26 
27         #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。

　　最后，附上源码地址：https://github.com/qq1206676756/RedisHelp

作者：最爱晴天
出处：http://www.cnblogs.com/qtqq/
本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

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原文地址：https://www.cnblogs.com/boyYu/p/12452022.html