C# 缓存工厂类
描 述：缓存工厂类
/// <summary>
/// 描 述：缓存工厂类
/// </summary>
public class CacheFactory
{
/// <summary>
/// 定义通用的Repository
/// </summary>
/// <returns></returns>
public static ICacheService Cache()
{
var cacheType = Config.GetValue("CacheType");
switch (cacheType)
{
case "MemoryCache":
return new MemoryCacheService(null);
case "RedisCache":
return new RedisCacheService();
default:
return new MemoryCacheService(null);
}
}
}
描 述：缓存接口
public interface ICacheService
{
/// <summary>
/// 验证缓存项是否存在
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
bool Exists(string key);
/// <summary>
/// 验证缓存项是否存在（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
//Task<bool> ExistsAsync(string key);
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <returns></returns>
bool Add(string key, object value);
/// <summary>
/// 添加缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <returns></returns>
//Task<bool> AddAsync(string key, object value);
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
bool Add(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte);
/// <summary>
/// 添加缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
//Task<bool> AddAsync(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte);
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
bool Add(string key, object value, TimeSpan expiresIn, bool isSliding = false);
/// <summary>
/// 添加缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
//Task<bool> AddAsync(string key, object value, TimeSpan expiresIn, bool isSliding = false);
/// <summary>
/// 删除缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
bool Remove(string key);
/// <summary>
/// 删除缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
//Task<bool> RemoveAsync(string key);
/// <summary>
/// 批量删除缓存
/// </summary>
/// <param name="key">缓存Key集合</param>
/// <returns></returns>
void RemoveAll(IEnumerable<string> keys);
/// <summary>
/// 批量删除缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key集合</param>
/// <returns></returns>
//Task RemoveAllAsync(IEnumerable<string> keys);
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
T Get<T>(string key) where T : class;
/// <summary>
/// 获取缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
//Task<T> GetAsync<T>(string key) where T : class;
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
object Get(string key);
/// <summary>
/// 获取缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
//Task<object> GetAsync(string key);
/// <summary>
/// 获取缓存集合
/// </summary>
/// <param name="keys">缓存Key集合</param>
/// <returns></returns>
IDictionary<string, object> GetAll(IEnumerable<string> keys);
/// <summary>
/// 获取缓存集合（异步方式）
/// </summary>
/// <param name="keys">缓存Key集合</param>
/// <returns></returns>
//Task<IDictionary<string, object>> GetAllAsync(IEnumerable<string> keys);
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <returns></returns>
bool Replace(string key, object value);
/// <summary>
/// 修改缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <returns></returns>
//Task<bool> ReplaceAsync(string key, object value);
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
bool Replace(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte);
/// <summary>
/// 修改缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
//Task<bool> ReplaceAsync(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte);
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
bool Replace(string key, object value, TimeSpan expiresIn, bool isSliding = false);
/// <summary>
/// 修改缓存（异步方式）
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
//Task<bool> ReplaceAsync(string key, object value, TimeSpan expiresIn, bool isSliding = false);
}
描 述 ：MemoryCache
public class MemoryCacheService : ICacheService
{
protected IMemoryCache Cache;
public MemoryCacheService(IMemoryCache _cache)
{
Cache = _cache;
}
/// <summary>
/// 验证缓存项是否存在
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public bool Exists(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
object cached;
return Cache.TryGetValue(key, out cached);
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <returns></returns>
public bool Add(string key, object value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
Cache.Set(key, value);
return Exists(key);
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
public bool Add(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
Cache.Set(key, value,
new MemoryCacheEntryOptions()
.SetSlidingExpiration(expiresSliding)
.SetAbsoluteExpiration(expiressAbsoulte)
);
return Exists(key);
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
public bool Add(string key, object value, TimeSpan expiresIn, bool isSliding = false)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (isSliding)
Cache.Set(key, value,
new MemoryCacheEntryOptions()
.SetSlidingExpiration(expiresIn)
);
else
Cache.Set(key, value,
new MemoryCacheEntryOptions()
.SetAbsoluteExpiration(expiresIn)
);
return Exists(key);
}
/// <summary>
/// 删除缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public bool Remove(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
Cache.Remove(key);
return !Exists(key);
}
/// <summary>
/// 批量删除缓存
/// </summary>
/// <param name="key">缓存Key集合</param>
/// <returns></returns>
public void RemoveAll(IEnumerable<string> keys)
{
if (keys == null)
{
throw new ArgumentNullException(nameof(keys));
}
keys.ToList().ForEach(item => Cache.Remove(item));
}
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public T Get<T>(string key) where T : class
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.Get(key) as T;
}
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public object Get(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.Get(key);
}
/// <summary>
/// 获取缓存集合
/// </summary>
/// <param name="keys">缓存Key集合</param>
/// <returns></returns>
public IDictionary<string, object> GetAll(IEnumerable<string> keys)
{
if (keys == null)
{
throw new ArgumentNullException(nameof(keys));
}
var dict = new Dictionary<string, object>();
keys.ToList().ForEach(item => dict.Add(item, Cache.Get(item)));
return dict;
}
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <returns></returns>
public bool Replace(string key, object value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (Exists(key))
if (!Remove(key)) return false;
return Add(key, value);
}
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
public bool Replace(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (Exists(key))
if (!Remove(key)) return false;
return Add(key, value, expiresSliding, expiressAbsoulte);
}
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
public bool Replace(string key, object value, TimeSpan expiresIn, bool isSliding = false)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (Exists(key))
if (!Remove(key)) return false;
return Add(key, value, expiresIn, isSliding);
}
public void Dispose()
{
if (Cache != null)
Cache.Dispose();
GC.SuppressFinalize(this);
}
}
描 述： RedisCache
public class RedisCacheService : ICacheService
{
public RedisCacheService(/*RedisCacheOptions options, int database = 0*/)
//这里可以做成依赖注入，但没打算做成通用类库，所以直接把连接信息直接写在帮助类里
{
RedisCacheOptions options = new RedisCacheOptions
{
Configuration = "127.0.0.1:6379",
InstanceName = "RedisCacheService_u48H4GU583hyehdH43"
};
//RedisConfig.Connection;
// RedisConfig.InstanceName;
; //RedisConfig.DefaultDatabase;
_connection = ConnectionMultiplexer.Connect(options.Configuration);
Cache = _connection.GetDatabase(database);
_instance = options.InstanceName;
}
protected IDatabase Cache;
private readonly ConnectionMultiplexer _connection;
private readonly string _instance;
//public RedisCacheService(RedisCacheOptions options, int database = 0)
//{
// _connection = ConnectionMultiplexer.Connect(options.Configuration);
// Cache = _connection.GetDatabase(database);
// _instance = options.InstanceName;
//}
public string GetKeyForRedis(string key)
{
return _instance + key;
}
/// <summary>
/// 验证缓存项是否存在
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public bool Exists(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.KeyExists(GetKeyForRedis(key));
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <returns></returns>
public bool Add(string key, object value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.StringSet(GetKeyForRedis(key), Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(value)));
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间,Redis中无效）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
public bool Add(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.StringSet(GetKeyForRedis(key), Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(value)), expiressAbsoulte);
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间,Redis中无效）</param>
/// <returns></returns>
public bool Add(string key, object value, TimeSpan expiresIn, bool isSliding = false)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.StringSet(GetKeyForRedis(key), Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(value)), expiresIn);
}/// <summary>
/// 删除缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public bool Remove(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return Cache.KeyDelete(GetKeyForRedis(key));
}
/// <summary>
/// 批量删除缓存
/// </summary>
/// <param name="key">缓存Key集合</param>
/// <returns></returns>
public void RemoveAll(IEnumerable<string> keys)
{
if (keys == null)
{
throw new ArgumentNullException(nameof(keys));
}
keys.ToList().ForEach(item => Remove(GetKeyForRedis(item)));
}
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public T Get<T>(string key) where T : class
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
var value = Cache.StringGet(GetKeyForRedis(key));
if (!value.HasValue)
{
return default(T);
}
return JsonConvert.DeserializeObject<T>(value);
}
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public object Get(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
var value = Cache.StringGet(GetKeyForRedis(key));
if (!value.HasValue)
{
return null;
}
return JsonConvert.DeserializeObject(value);
}
/// <summary>
/// 获取缓存集合
/// </summary>
/// <param name="keys">缓存Key集合</param>
/// <returns></returns>
public IDictionary<string, object> GetAll(IEnumerable<string> keys)
{
if (keys == null)
{
throw new ArgumentNullException(nameof(keys));
}
var dict = new Dictionary<string, object>();
keys.ToList().ForEach(item => dict.Add(item, Get(GetKeyForRedis(item))));
return dict;
}
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <returns></returns>
public bool Replace(string key, object value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (Exists(key))
if (!Remove(key))
return false;
return Add(key, value);
}
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
public bool Replace(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (Exists(key))
if (!Remove(key))
return false;
return Add(key, value, expiresSliding, expiressAbsoulte);
}
/// <summary>
/// 修改缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">新的缓存Value</param>
/// <param name="expiresIn">缓存时长</param>
/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <returns></returns>
public bool Replace(string key, object value, TimeSpan expiresIn, bool isSliding = false)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (Exists(key))
if (!Remove(key)) return false;
return Add(key, value, expiresIn, isSliding);
}
public void Dispose()
{
if (_connection != null)
_connection.Dispose();
GC.SuppressFinalize(this);
}
}
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