C# Redis 使用：
Redis支持五种数据类型：string（字符串），hash（哈希），list（列表），set（集合）及zset(sorted set：有序集合)。
使用的数据驱动是：stackexchange.可以从NUGET中安装。
1）加载配置
using StackExchange.Redis;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CommonTool.Redis
{
public static class RedisConnectionHelp
{
public static readonly string SysCustomKey = ConfigurationManager.AppSettings["redisKey"] ?? "";
//"127.0.0.1:6379,password=****"
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>
/// Singleton mode
/// </summary>
public static ConnectionMultiplexer Instance
{
get
{
if (_instance == null)
{
lock (Locker)
{
if (_instance == null || !_instance.IsConnected)
{
_instance = GetManager();
}
}
}
return _instance;
}
}
/// <summary>
/// get cache
/// </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);
//register some events
connect.ConnectionFailed += MuxerConnectionFailed;
connect.ConnectionRestored += MuxerConnectionRestored;
connect.ErrorMessage += MuxerErrorMessage;
connect.ConfigurationChanged += MuxerConfigurationChanged;
connect.HashSlotMoved += MuxerHashSlotMoved;
connect.InternalError += MuxerInternalError;
return connect;
}
#region events
/// <summary>
/// When configuration changes
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e)
{
Console.WriteLine("Configuration changed: " + e.EndPoint);
}
/// <summary>
/// When an error occurs
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e)
{
Console.WriteLine("ErrorMessage: " + e.Message);
}
/// <summary>
/// Before re-establishing the connection error
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e)
{
Console.WriteLine("ConnectionRestored: " + e.EndPoint);
}
/// <summary>
/// Connection failed, if you reconnect successfully you will not receive this notification
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e)
{
Console.WriteLine("Connection：Endpoint failed: " + e.EndPoint + ", " + e.FailureType + (e.Exception == null ? "" : (", " + e.Exception.Message)));
}
/// <summary>
/// Change the cluster
/// </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>
/// Internal Error
/// </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 events
}
}
2）使用
using Newtonsoft.Json;
using StackExchange.Redis;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CommonTool.Redis
{
public class RedisHelper
{
private int DbNum { get; }
private readonly ConnectionMultiplexer _conn;
public string CustomKey;
#region Constructor
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 Auxiliary methods
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
#endregion Constuctor
#region String
#region Sync method
/// <summary>
/// save single key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">save value</param>
/// <param name="expiry">expiry time</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>
/// save multiple key value
/// </summary>
/// <param name="keyValues">key value pair</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>
/// save an object
/// </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>
/// get a single key
/// </summary>
/// <param name="key">Redis Key</param>
/// <returns></returns>
public string StringGet(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.StringGet(key));
}
/// <summary>
/// get multiple keys
/// </summary>
/// <param name="listKey">Redis Key collection</param>
/// <returns></returns>
public RedisValue[] StringGet(List<string> listKey)
{
List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
return Do(db => db.StringGet(ConvertRedisKeys(newKeys)));
}
/// <summary>
/// get an object by a key
/// </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>
/// Increase val for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="val">Can be negative</param>
/// <returns>Increased value</returns>
public double StringIncrement(string key, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.StringIncrement(key, val));
}
/// <summary>
/// Reduce val for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="val">can be negative</param>
/// <returns>reduced value</returns>
public double StringDecrement(string key, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.StringDecrement(key, val));
}
#endregion
#region Asyn method
/// <summary>
/// save single key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">save time</param>
/// <param name="expiry">expiry time</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>
/// save multiple key value
/// </summary>
/// <param name="keyValues">key value pair</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>
/// save an object
/// </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>
/// get a single key
/// </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>
/// get multiple keys
/// </summary>
/// <param name="listKey">Redis Key collection</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>
/// get an object from a key
/// </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>
/// increase val for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="val">can be negative</param>
/// <returns>increased value</returns>
public async Task<double> StringIncrementAsync(string key, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringIncrementAsync(key, val));
}
/// <summary>
/// reduce val for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="val">can be negative</param>
/// <returns>reduced value</returns>
public async Task<double> StringDecrementAsync(string key, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringDecrementAsync(key, val));
}
#endregion
#endregion String
#region List
#region Sync method
/// <summary>
/// Delete the corresponding value from list according to the key
/// </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>
/// get the specific list according to the key
/// </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>
/// into the queue
/// </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>
/// out of the queue
/// </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>
/// into the stack
/// </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>
/// out of stack
/// </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>
/// get the length of list according to the key
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public long ListLength(string key)
{
key = AddSysCustomKey(key);
return Do(redis => redis.ListLength(key));
}
#endregion Sync method
#region Asyn method
/// <summary>
/// remove the value with specific key in the list
/// </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>
/// get a list by key
/// </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>
/// into the queue
/// </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>
/// out of the queue
/// </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>
/// into the stack
/// </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>
/// out of stack
/// </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>
/// get length of the list by key
/// </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 Asyn method
#endregion List
#region Hash
#region Sync method
/// <summary>
/// if existed in the cache
/// </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>
/// save data into the hash table
/// </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>
/// remove a single value in hash
/// </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>
/// remove multiple values in hash
/// </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>
/// get data from a hash table
/// </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>
/// increase value for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">can be negative</param>
/// <returns>increased value</returns>
public double HashIncrement(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.HashIncrement(key, dataKey, val));
}
/// <summary>
/// reduce value for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">can be negative</param>
/// <returns>reduced value</returns>
public double HashDecrement(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.HashDecrement(key, dataKey, val));
}
/// <summary>
/// Get hashkey all 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 Sync method
#region Asyn method
/// <summary>
/// if existed in the cache
/// </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>
/// save data into the hash table
/// </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>
/// remove a single value in hash
/// </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>
/// remove multiple values in hash
/// </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>
/// get data from a hash table
/// </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>
/// increase value for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">can be negative</param>
/// <returns>increased value</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>
/// reduce value for numbers
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">can be negative</param>
/// <returns>reduced value</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>
/// Get hashkey all 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 Asyn method
#endregion Hash
#region SortedSet
#region Sync method
/// <summary>
/// add
/// </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>
/// delete
/// </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>
/// getall
/// </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>
/// get count in the colloection
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public long SortedSetLength(string key)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetLength(key));
}
#endregion Sync method
#region Asyn method
/// <summary>
/// add
/// </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>
/// delete
/// </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>
/// get all
/// </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>
/// get count in collection
/// </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 Asyn method
#endregion SortedSet
#region key management
/// <summary>
/// key management
/// </summary>
/// <param name="key">redis key</param>
/// <returns>if it is deleted</returns>
public bool KeyDelete(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyDelete(key));
}
/// <summary>
/// delete mutiple keys
/// </summary>
/// <param name="keys">rediskey</param>
/// <returns>deleted count</returns>
public long KeyDelete(List<string> keys)
{
List<string> newKeys = keys.Select(AddSysCustomKey).ToList();
return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));
}
/// <summary>
/// if the key is saved
/// </summary>
/// <param name="key">redis key</param>
/// <returns></returns>
public bool KeyExists(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyExists(key));
}
/// <summary>
/// rename key
/// </summary>
/// <param name="key">old redis key</param>
/// <param name="newKey">new redis key</param>
/// <returns></returns>
public bool KeyRename(string key, string newKey)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyRename(key, newKey));
}
/// <summary>
/// set key expiry time
/// </summary>
/// <param name="key">redis key</param>
/// <param name="expiry"></param>
/// <returns></returns>
public bool KeyExpire(string key, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return Do(db => db.KeyExpire(key, expiry));
}
#endregion key
#region Publish Subscribe
/// <summary>
/// Subscribe
/// </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 + " subscription news：" + message);
}
else
{
handler(channel, message);
}
});
}
/// <summary>
/// Publish
/// </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>
/// cancle Subscribe
/// </summary>
/// <param name="channel"></param>
public void Unsubscribe(string channel)
{
ISubscriber sub = _conn.GetSubscriber();
sub.Unsubscribe(channel);
}
/// <summary>
/// cancle Subscribe all
/// </summary>
public void UnsubscribeAll()
{
ISubscriber sub = _conn.GetSubscriber();
sub.UnsubscribeAll();
}
#endregion
#region Others
public ITransaction CreateTransaction()
{
return GetDatabase().CreateTransaction();
}
public IDatabase GetDatabase()
{
return _conn.GetDatabase(DbNum);
}
public IServer GetServer(string hostAndPort)
{
return _conn.GetServer(hostAndPort);
}
/// <summary>
/// set the prefix
/// </summary>
/// <param name="customKey"></param>
public void SetSysCustomKey(string customKey)
{
CustomKey = customKey;
}
#endregion Others
}
}