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using System;
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using System.Collections;
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using System.Web;
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using System.Web.Caching;
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namespace Common
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{
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public class CacheHelper
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{
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public static void InsertFile(string key, object obj, string fileName)
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{
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CacheDependency dep = new CacheDependency(fileName);
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HttpContext.Current.Cache.Insert(key, obj, dep);
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}
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public static void Insert(string key, object obj)
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{
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if (obj != null)
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{
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int expires = CommonHelper.GetInt(ConfigHelper.GetAppSettings("TimeCache"));
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HttpContext.Current.Cache.Insert(key, obj, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, expires, 0));
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}
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}
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public static bool IsExist(string strKey)
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{
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return HttpContext.Current.Cache[strKey] != null;
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}
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public static object GetCache(string key)
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{
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object result;
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if (string.IsNullOrEmpty(key))
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{
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result = null;
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}
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else
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{
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if (ConfigHelper.GetAppSettings("IsCache") == "false")
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{
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result = null;
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}
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else
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{
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result = HttpContext.Current.Cache.Get(key);
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}
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}
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return result;
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}
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public static T Get<T>(string key)
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{
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object obj = CacheHelper.GetCache(key);
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return (obj == null) ? default(T) : ((T)((object)obj));
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}
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public static void RemoveAllCache(string CacheKey)
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{
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Cache _cache = HttpRuntime.Cache;
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_cache.Remove(CacheKey);
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}
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public static void RemoveAllCache()
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{
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Cache _cache = HttpRuntime.Cache;
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IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
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while (CacheEnum.MoveNext())
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{
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_cache.Remove(CacheEnum.Key.ToString());
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}
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}
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}
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}
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