SuLei.Common/CacheHelper.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.Caching;

namespace SuLei.Common
{
    /// <summary>
    /// 缓存读写工具类
    /// </summary>
    public class CacheHelper
    {
        /// <summary>
        /// 创建缓存项的文件
        /// </summary>
        /// <param name="key">缓存Key</param>
        /// <param name="obj">object对象</param>
        public static void Insert(string key, object obj)
        {
            //创建缓存
            HttpContext.Current.Cache.Insert(key, obj);
        }
        /// <summary>
        /// 移除缓存项的文件
        /// </summary>
        /// <param name="key">缓存Key</param>
        public static void Remove(string key)
        {
            //创建缓存
            HttpContext.Current.Cache.Remove(key);
        }
        /// <summary>
        /// 创建缓存项的文件依赖
        /// </summary>
        /// <param name="key">缓存Key</param>
        /// <param name="obj">object对象</param>
        /// <param name="fileName">文件绝对路径</param>
        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);
        }

        /// <summary>
        /// 创建缓存项过期
        /// </summary>
        /// <param name="key">缓存Key</param>
        /// <param name="obj">object对象</param>
        /// <param name="expires">过期时间(分钟)</param>
        public static void Insert(string key, object obj, int expires)
        {
            HttpContext.Current.Cache.Insert(key, obj, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, expires, 0));
        }

        /// <summary>
        /// 获取缓存对象
        /// </summary>