【.net】缓存操作

类：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Web;using System.Web.Caching;namespace RisunFactoryLibrary{public class CacheHelper{/// 
/// 创建缓存项的文件依赖/// 
/// 缓存Key/// object对象/// 文件绝对路径public static void Insert(string key, object obj, string fileName){//创建缓存依赖项CacheDependency dep = new CacheDependency(fileName);//创建缓存HttpContext.Current.Cache.Insert(key, obj, dep);}/// 
/// 创建缓存项的文件依赖/// 
/// 缓存Key/// object对象/// 文件绝对路径public static void Remove(string key){//创建缓存HttpContext.Current.Cache.Remove(key);}/// 
/// 创建缓存项过期/// 
/// 缓存Key/// object对象/// 过期时间(分钟)public static void Insert(string key, object obj, int expires){HttpContext.Current.Cache.Insert(key, obj, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, expires, 0));}/// 
/// 获取缓存对象/// 
/// 缓存Key/// object对象public static object Get(string key){if (string.IsNullOrEmpty(key)){return null;}return HttpContext.Current.Cache.Get(key);}/// 
/// 获取缓存对象/// 
/// T对象/// 缓存Key/// public static T Get(string key){object obj = Get(key);return obj == null ? default(T) : (T)obj;}}}

调用：

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