我为国际奥委会使用团结。
在我的服务层中,我想在类中使用System.Web.Cache。
我是否应该仅将其作为参数传递,Unity会自动将其作为依赖关系传递?
例:
public class UserService
{
public UserService(System.Web.Caching.Cache cache)
{
_cache = cache;
}
}
最佳答案
您应该使用System.Runtime.Caching
。它是专门为处理对象的缓存而设计的。 NopCommerce对此有很好的实现。您应该创建一个CacheManager,例如:
/// <summary>
/// Cache manager interface
/// </summary>
public interface ICacheManager
{
/// <summary>
/// Gets or sets the value associated with the specified key.
/// </summary>
/// <typeparam name="T">Type</typeparam>
/// <param name="key">The key of the value to get.</param>
/// <returns>The value associated with the specified key.</returns>
T Get<T>(string key);
/// <summary>
/// Adds the specified key and object to the cache.
/// </summary>
/// <param name="key">key</param>
/// <param name="data">Data</param>
/// <param name="cacheTime">Cache time</param>
void Set(string key, object data, int cacheTime);
/// <summary>
/// Gets a value indicating whether the value associated with the specified key is cached
/// </summary>
/// <param name="key">key</param>
/// <returns>Result</returns>
bool IsSet(string key);
/// <summary>
/// Removes the value with the specified key from the cache
/// </summary>
/// <param name="key">/key</param>
void Remove(string key);
/// <summary>
/// Removes items by pattern
/// </summary>
/// <param name="pattern">pattern</param>
void RemoveByPattern(string pattern);
/// <summary>
/// Clear all cache data
/// </summary>
void Clear();
}
然后,您可以使用MemoryCache或任何其他缓存管理器(例如RedisCache)实现ICacheManager接口,如下所示:
/// <summary>
/// Represents a MemoryCacheCache
/// </summary>
public partial class MemoryCacheManager : ICacheManager
{
protected ObjectCache Cache
{
get
{
return MemoryCache.Default;
}
}
/// <summary>
/// Gets or sets the value associated with the specified key.
/// </summary>
/// <typeparam name="T">Type</typeparam>
/// <param name="key">The key of the value to get.</param>
/// <returns>The value associated with the specified key.</returns>
public virtual T Get<T>(string key)
{
return (T)Cache[key];
}
/// <summary>
/// Adds the specified key and object to the cache.
/// </summary>
/// <param name="key">key</param>
/// <param name="data">Data</param>
/// <param name="cacheTime">Cache time</param>
public virtual void Set(string key, object data, int cacheTime)
{
if (data == null)
return;
var policy = new CacheItemPolicy();
policy.AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime);
Cache.Add(new CacheItem(key, data), policy);
}
/// <summary>
/// Gets a value indicating whether the value associated with the specified key is cached
/// </summary>
/// <param name="key">key</param>
/// <returns>Result</returns>
public virtual bool IsSet(string key)
{
return (Cache.Contains(key));
}
/// <summary>
/// Removes the value with the specified key from the cache
/// </summary>
/// <param name="key">/key</param>
public virtual void Remove(string key)
{
Cache.Remove(key);
}
/// <summary>
/// Removes items by pattern
/// </summary>
/// <param name="pattern">pattern</param>
public virtual void RemoveByPattern(string pattern)
{
var regex = new Regex(pattern, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.IgnoreCase);
var keysToRemove = new List<String>();
foreach (var item in Cache)
if (regex.IsMatch(item.Key))
keysToRemove.Add(item.Key);
foreach (string key in keysToRemove)
{
Remove(key);
}
}
/// <summary>
/// Clear all cache data
/// </summary>
public virtual void Clear()
{
foreach (var item in Cache)
Remove(item.Key);
}
}
查看此NopCommerce link了解更多详细信息。在Unity中注册ICacheManager来为MemoryCacheManager创建对象,然后在您的应用程序中使用它。快乐的编码:)
关于c# - 如何将System.Web.Cache传递到我的服务层,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/45759498/