DsJian/Utilities/CacheHelper.cs

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

namespace DsJian
{
    /// <summary>
    /// 缓存管理类
    /// </summary>
    public class CacheHelper
    {
        /// <summary>
        /// DayFactor
        /// </summary>
        public static readonly int DayFactor = 17280;
        /// <summary>
        /// HourFactor
        /// </summary>
        public static readonly int HourFactor = 720;
        /// <summary>
        /// MinuteFactor
        /// </summary>
        public static readonly int MinuteFactor = 12;
        /// <summary>
        /// SecondFactor
        /// </summary>
        public static readonly double SecondFactor = 0.2;

        private static readonly System.Web.Caching.Cache _cache;

        private static int Factor = 1;

        /// <summary>
        /// 
        /// </summary>
        /// <param name="cacheFactor"></param>
        public static void ReSetFactor(int cacheFactor)
        {
            Factor = cacheFactor;
        }

        /// <summary>
        /// 确保当前HttpContext只有一个Cache实例
        /// </summary>
        static CacheHelper()
        {
            HttpContext context = HttpContext.Current;
            if (context != null)
            {
                _cache = context.Cache;
            }
            else
            {
                _cache = HttpRuntime.Cache;
            }
        }