asp.net下Cache 缓存操作类代码

using System.Collections.Generic; 
using System.Web; 
using System; 
namespace DataAccess 
{ 
/// <summary> 
/// 缓存控制类 
/// </summary> 
public class CacheControl 
{ 
public static List<string> AllUseCacheKey = new List<string>(); 
/// <summary> 
/// 添加缓存 
/// </summary> 
/// <param name="key"></param> 
/// <param name="value"></param> 
/// <param name="absoluteExpiration"></param> 
public static void AddCache(string key, object value, DateTime absoluteExpiration) 
{ 
if (!AllUseCacheKey.Contains(key)) 
{ 
AllUseCacheKey.Add(key); 
} 
HttpContext.Current.Cache.Add(key, value, null, absoluteExpiration, TimeSpan.Zero, System.Web.Caching.CacheItemPriority.Normal, null); 
} 
/// <summary> 
/// 移除缓存 
/// </summary> 
/// <param name="key"></param> 
public static void RemoveCache(string key) 
{ 
if (AllUseCacheKey.Contains(key)) 
{ 
AllUseCacheKey.Remove(key); 
} 
HttpContext.Current.Cache.Remove(key); 
} 
/// <summary> 
/// 清空使用的缓存 
/// </summary> 
public static void ClearCache() 
{ 
foreach (string value in AllUseCacheKey) 
{ 
HttpContext.Current.Cache.Remove(value); 
} 
AllUseCacheKey.Clear(); 
} 
} 
} 


      
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