詳解StackExchange.Redis通用封裝類分享
更新時間：2016年12月19日 09:22:52 作者：最愛晴天
這篇文章主要介紹了詳解StackExchange.Redis通用封裝類分享 ，詳細的介紹了StackExchange.Redis通用封裝，具有一定的參考價值，有需要的可以了解一下。
前兩天朋友問我，有沒有使用過StackExchange.Redis，問我要個封裝類，由于之前都是使用ServiceStack.Redis，由于ServiceStack.Redis v4版本后是收費版的，所以現(xiàn)在也很有公司都在使用StackExchange.Redis而拋棄ServiceStack.Redis了。其實個人覺得，兩個驅(qū)動都不錯，只是由于ServiceStack.Redis收費導致目前很多公司都是基于V3版本的使用，也有人說V3版本有很多Bug，沒有維護和升級，不過至少目前我是沒發(fā)現(xiàn)Bug。
不過ServiceStack.Redis同StackExchange.Redis比較，拋開收費的來說，確認比StackExchange.Redis 更有優(yōu)勢。StackExchange.Redis文檔很少，更不要說國內(nèi)的文檔了，連github上面對應(yīng)的介紹文檔都是很片面，這點我真的覺得StackExchange.Redis的作者至少要完善下文檔，很多都是要看源碼的例子才有。網(wǎng)上對StackExchange.Redis的使用例子也比ServiceStack.Redis少得多，不是說沒人用，只是我查來查去，大部分都是基于String類型的數(shù)據(jù)進行使用的封裝類，對于List，SortedSet，Hash的封裝操作都很少，基本都是東寫一點，西寫一點，很難找到完整的。在參考了一些文章和源碼后，這里提供一個自己封裝的類，基本提供對于各種類型的使用封裝，提供給大家學習使用，如果有哪里寫的不好的，大家也可以互相交流。
ConnectionMultiplexer 封裝
首先是 ConnectionMultiplexer 的封裝，ConnectionMultiplexer對象是StackExchange.Redis最中樞的對象。這個類的實例需要被整個應(yīng)用程序域共享和重用的，所以不需要在每個操作中不停的創(chuàng)建該對象的實例，一般都是使用單例來創(chuàng)建和存放這個對象，這個在官網(wǎng)上也有說明。
/// <summary>
/// ConnectionMultiplexer對象管理幫助類
/// </summary>
public static class RedisConnectionHelp
{
//系統(tǒng)自定義Key前綴
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>
/// 單例獲取
/// </summary>
public static ConnectionMultiplexer Instance
{
get
{
if (_instance == null)
{
lock (Locker)
{
if (_instance == null || !_instance.IsConnected)
{
_instance = GetManager();
}
}
}
return _instance;
}
}
/// <summary>
/// 緩存獲取
/// </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);
//注冊如下事件
connect.ConnectionFailed += MuxerConnectionFailed;
connect.ConnectionRestored += MuxerConnectionRestored;
connect.ErrorMessage += MuxerErrorMessage;
connect.ConfigurationChanged += MuxerConfigurationChanged;
connect.HashSlotMoved += MuxerHashSlotMoved;
connect.InternalError += MuxerInternalError;
return connect;
}
#region 事件
/// <summary>
/// 配置更改時
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e)
{
Console.WriteLine("Configuration changed: " + e.EndPoint);
}
/// <summary>
/// 發(fā)生錯誤時
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e)
{
Console.WriteLine("ErrorMessage: " + e.Message);
}
/// <summary>
/// 重新建立連接之前的錯誤
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e)
{
Console.WriteLine("ConnectionRestored: " + e.EndPoint);
}
/// <summary>
/// 連接失敗 ， 如果重新連接成功你將不會收到這個通知
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e)
{
Console.WriteLine("重新連接：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類庫錯誤
/// </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
}
RedisHelper 通用操作類封
public class RedisHelper
{
private int DbNum { get; }
private readonly ConnectionMultiplexer _conn;
public string CustomKey;
#region 構(gòu)造函數(shù)
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 輔助方法
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 輔助方法
#endregion 構(gòu)造函數(shù)
}
其中CustomKey用來表示系統(tǒng)前綴，AddSysCustomKey方法對每個key都進行前綴的添加處理，這里推薦大家在命名redis的key的時候最好的加上前綴，并且使用 ：來分割前綴 ,這里在使用可視化工具查看的時候就比較好區(qū)分，比如我的的前綴是 Demo:test:（一般是 系統(tǒng)名：業(yè)務(wù)名：）,然后你查看的時候你會發(fā)現(xiàn)整齊，好區(qū)分了很多
String類型的封裝
#region String
#region 同步方法
/// <summary>
/// 保存單個key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">保存的值</param>
/// <param name="expiry">過期時間</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>
/// 保存多個key value
/// </summary>
/// <param name="keyValues">鍵值對</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>
/// 保存一個對象
/// </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>
/// 獲取單個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>
/// 獲取多個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>
/// 獲取一個key的對象
/// </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>
/// 為數(shù)字增長val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以為負</param>
/// <returns>增長后的值</returns>
public double StringIncrement(string key, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.StringIncrement(key, val));
}
/// <summary>
/// 為數(shù)字減少val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以為負</param>
/// <returns>減少后的值</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 異步方法
/// <summary>
/// 保存單個key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">保存的值</param>
/// <param name="expiry">過期時間</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>
/// 保存多個key value
/// </summary>
/// <param name="keyValues">鍵值對</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>
/// 保存一個對象
/// </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>
/// 獲取單個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>
/// 獲取多個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>
/// 獲取一個key的對象
/// </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>
/// 為數(shù)字增長val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以為負</param>
/// <returns>增長后的值</returns>
public async Task<double> StringIncrementAsync(string key, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringIncrementAsync(key, val));
}
/// <summary>
/// 為數(shù)字減少val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以為負</param>
/// <returns>減少后的值</returns>
public async Task<double> StringDecrementAsync(string key, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringDecrementAsync(key, val));
}
#endregion 異步方法
#endregion String
這里說一下，StackExchange.Redis 中對對象的存儲是不自帶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來操作，如果需要換成其他的序列化和序列化，直接修改這兩個方面就好了，另外，StackExchange.Redis 相對于ServiceStack.Redis 來說提供了異步的方法，所以這里也同樣封裝了異步和同步的方法。
List類型的封裝
#region List
#region 同步方法
/// <summary>
/// 移除指定ListId的內(nèi)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>
/// 獲取指定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>
/// 入隊
/// </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>
/// 出隊
/// </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>
/// 入棧
/// </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>
/// 出棧
/// </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>
/// 獲取集合中的數(shù)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 異步方法
/// <summary>
/// 移除指定ListId的內(nèi)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>
/// 獲取指定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>
/// 入隊
/// </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>
/// 出隊
/// </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>
/// 入棧
/// </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>
/// 出棧
/// </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>
/// 獲取集合中的數(shù)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 異步方法
#endregion List
Hash類型的封裝
#region Hash
#region 同步方法
/// <summary>
/// 判斷某個數(shù)據(jù)是否已經(jīng)被緩存
/// </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>
/// 存儲數(shù)據(jù)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中的多個值
/// </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>
/// 從hash表獲取數(shù)據(jù)
/// </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>
/// 為數(shù)字增長val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以為負</param>
/// <returns>增長后的值</returns>
public double HashIncrement(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.HashIncrement(key, dataKey, val));
}
/// <summary>
/// 為數(shù)字減少val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以為負</param>
/// <returns>減少后的值</returns>
public double HashDecrement(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.HashDecrement(key, dataKey, val));
}
/// <summary>
/// 獲取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 異步方法
/// <summary>
/// 判斷某個數(shù)據(jù)是否已經(jīng)被緩存
/// </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>
/// 存儲數(shù)據(jù)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中的多個值
/// </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>
/// 從hash表獲取數(shù)據(jù)
/// </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>
/// 為數(shù)字增長val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以為負</param>
/// <returns>增長后的值</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>
/// 為數(shù)字減少val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以為負</param>
/// <returns>減少后的值</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>
/// 獲取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 異步方法
#endregion Hash
SortedSet 類型的封裝
#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>
/// 刪除
/// </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>
/// 獲取全部
/// </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>
/// 獲取集合中的數(shù)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 異步方法
/// <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>
/// 刪除
/// </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>
/// 獲取全部
/// </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>
/// 獲取集合中的數(shù)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 異步方法
#endregion SortedSet 有序集合
key的管理
#region key
/// <summary>
/// 刪除單個key
/// </summary>
/// <param name="key">redis key</param>
/// <returns>是否刪除成功</returns>
public bool KeyDelete(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyDelete(key));
}
/// <summary>
/// 刪除多個key
/// </summary>
/// <param name="keys">rediskey</param>
/// <returns>成功刪除的個數(shù)</returns>
public long KeyDelete(List<string> keys)
{
List<string> newKeys = keys.Select(AddSysCustomKey).ToList();
return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));
}
/// <summary>
/// 判斷key是否存儲
/// </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>
/// 設(shè)置Key的時間
/// </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
發(fā)布和訂閱
#region 發(fā)布訂閱
/// <summary>
/// Redis發(fā)布訂閱 訂閱
/// </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 + " 訂閱收到消息：" + message);
}
else
{
handler(channel, message);
}
});
}
/// <summary>
/// Redis發(fā)布訂閱 發(fā)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發(fā)布訂閱 取消訂閱
/// </summary>
/// <param name="channel"></param>
public void Unsubscribe(string channel)
{
ISubscriber sub = _conn.GetSubscriber();
sub.Unsubscribe(channel);
}
/// <summary>
/// Redis發(fā)布訂閱 取消全部訂閱
/// </summary>
public void UnsubscribeAll()
{
ISubscriber sub = _conn.GetSubscriber();
sub.UnsubscribeAll();
}
#endregion 發(fā)布訂閱
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>
/// 設(shè)置前綴
/// </summary>
/// <param name="customKey"></param>
public void SetSysCustomKey(string customKey)
{
CustomKey = customKey;
}
#endregion 其他
以上就是對StackExchange.Redis基本操作的通用封裝，提供給大家學習參考，如果有哪里寫錯的，也希望能一起交流。
問題：
StackExchange.Redis沒有提供Redis分布式鎖的操作么？ServiceStack.Redis 提供了AcquireLock 的方法來操作，StackExchange.Redis 源碼中只找到了LockTake的方法，并沒有找到其他的方法了，如果有人使用過，還希望能提供下。
最后，附上源碼地址：demo
以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
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