QiFeng.ZWY.Utility/CacheExtension.cs

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using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.Caching;

namespace QiFeng.LMSD.Utility
{
    //缓存写入  
    //验证缓存是否存在  
    //缓存读取   按缓存索引读取相应缓存值  
    public static class CacheExtension
    {
        //private static int CacheMinute = int.Parse(ConfigurationManager.AppSettings["CacheMinute"] ?? "30");

        /// <summary>  
        /// 获取当前应用程序指定CacheKey的Cache值  
        /// </summary>  
        /// <param name="cacheKey"></param>  
        /// <returns></returns>  
        public static object GetCache(string cacheKey)
        {
            var objCache = HttpRuntime.Cache;
            return objCache[cacheKey];
        }
        /// <summary>  
        /// 查询指定CacheKey的Cache值是否存在  
        /// </summary>  
        /// <param name="cacheKey"></param>  
        /// <returns></returns>  
        public static bool IsExistsCache(string cacheKey)
        {
            var objCache = HttpRuntime.Cache;
            return objCache[cacheKey] != null;
        }

        /// <summary>  
        /// 设置当前应用程序指定CacheKey的Cache值  
        /// </summary>  
        /// <param name="cacheKey"></param>  
        /// <param name="objObject"></param>  
        public static void SetCache(string cacheKey, object objObject)
        {
            var objCache = HttpRuntime.Cache;
            objCache.Insert(cacheKey, objObject);
        }

        /// <summary>  
        /// 设置当前应用程序指定CacheKey的Cache值  
        /// </summary>  
        /// <param name="cacheKey"></param>  
        /// <param name="objObject"></param>
        /// <param name="absoluteExpiration"></param>
        /// <param name="slidingExpiration"></param>  
        public static void SetCache(string cacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration)
        {
            var objCache = HttpRuntime.Cache;