C# Redis 缓存应用 主要代码及版本选择

/// <summary>
/// RedisManager类主要是创建链接池管理对象的
/// </summary>
public class RedisManager
{
/// <summary>
/// redis配置文件信息
/// </summary>
private static string RedisPath = System.Configuration.ConfigurationSettings.AppSettings["RedisPath"];
private static PooledRedisClientManager _prcm;

/// <summary>
/// 静态构造方法，初始化链接池管理对象
/// </summary>
static RedisManager()
{
CreateManager();
}

/// <summary>
/// 创建链接池管理对象
/// </summary>
private static void CreateManager()
{
_prcm = CreateManager(new string[] { RedisPath }, new string[] { RedisPath });
}

private static PooledRedisClientManager CreateManager(string[] readWriteHosts, string[] readOnlyHosts)
{
//WriteServerList：可写的Redis链接地址。
//ReadServerList：可读的Redis链接地址。
//MaxWritePoolSize：最大写链接数。
//MaxReadPoolSize：最大读链接数。
//AutoStart：自动重启。
//LocalCacheTime：本地缓存到期时间，单位:秒。
//RecordeLog：是否记录日志,该设置仅用于排查redis运行时出现的问题,如redis工作正常,请关闭该项。
//RedisConfigInfo类是记录redis连接信息，此信息和配置文件中的RedisConfig相呼应

// 支持读写分离，均衡负载
return new PooledRedisClientManager(readWriteHosts, readOnlyHosts, new RedisClientManagerConfig
{
MaxWritePoolSize = 5, // “写”链接池链接数
MaxReadPoolSize = 5, // “读”链接池链接数
AutoStart = true,

});

// ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("Redis1_IP地址:端口,password=密码");
}

private static IEnumerable<string> SplitString(string strSource, string split)
{
return strSource.Split(split.ToArray());
}

/// <summary>
/// 客户端缓存操作对象
/// </summary>
public static IRedisClient GetClient()
{
if (_prcm == null)
{
CreateManager();
}
return _prcm.GetClient();
}

}

/// <summary>
/// RedisOperatorBase类，是redis操作的基类，继承自IDisposable接口，主要用于释放内存
/// </summary>
public abstract class RedisOperatorBase : IDisposable
{
protected IRedisClient Redis { get; private set; }
private bool _disposed = false;
protected RedisOperatorBase()
{
Redis = RedisManager.GetClient();
}
protected virtual void Dispose(bool disposing)
{
if (!this._disposed)
{
if (disposing)
{
Redis.Dispose();
Redis = null;
}
}
this._disposed = true;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>
/// 保存数据DB文件到硬盘
/// </summary>
public void Save()
{
Redis.Save();
}
/// <summary>
/// 异步保存数据DB文件到硬盘
/// </summary>
public void SaveAsync()
{
Redis.SaveAsync();
}

}

/// <summary>
/// HashOperator类，是操作哈希表类。继承自RedisOperatorBase类
/// </summary>
public class HashOperator : RedisOperatorBase
{
public HashOperator() : base() { }
/// <summary>
/// 判断某个数据是否已经被缓存
/// </summary>
public bool Exist<T>(string hashId, string key)
{
return Redis.HashContainsEntry(hashId, key);
}
/// <summary>
/// 存储数据到hash表
/// </summary>
public bool Set<T>(string hashId, string key, T t)
{
var value = JsonSerializer.SerializeToString<T>(t);
return Redis.SetEntryInHash(hashId, key, value);
}
/// <summary>
/// 移除hash中的某值
/// </summary>
public bool Remove(string hashId, string key)
{
return Redis.RemoveEntryFromHash(hashId, key);
}
/// <summary>
/// 移除整个hash
/// </summary>
public bool Remove(string key)
{
return Redis.Remove(key);
}
/// <summary>
/// 从hash表获取数据
/// </summary>
public T Get<T>(string hashId, string key)
{
string value = Redis.GetValueFromHash(hashId, key);
return JsonSerializer.DeserializeFromString<T>(value);
}
/// <summary>
/// 获取整个hash的数据
/// </summary>
public List<T> GetAll<T>(string hashId)
{
var result = new List<T>();
var list = Redis.GetHashValues(hashId);
if (list != null && list.Count > 0)
{
list.ForEach(x =>
{
var value = JsonSerializer.DeserializeFromString<T>(x);
result.Add(value);
});
}
return result;
}
/// <summary>
/// 设置缓存过期
/// </summary>
public void SetExpire(string key, DateTime datetime)
{
Redis.ExpireEntryAt(key, datetime);
}
}

调用实例

using (HashOperator ht = new HashOperator())
{
ht.Set<string>(i.ToString(), "a"+i.ToString(), "value"+i.ToString());
//string str = ht.Get<string>(i.ToString(), "a" + i.ToString());
//Console.WriteLine(str);
//MessageBox.Show(str);
}

配置服务访问连接字符串

<add key="RedisPath" value="123456@127.0.0.1:6379" />

其中 123456 为密码

127.0.0.1:6379 为服务地址及端口

使用  ServiceStack.Redis V3.9.71 版本 可以避免高版本 每小时6000次的访问并发限制