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  • asp之缓存 cachestate

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string CacheKey = "cachetest";
            object objModel = GetCache(CacheKey);//从缓存中获取
            if (objModel == null)//缓存里没有
            {
                objModel = DateTime.Now;//把当前时间进行缓存
                if (objModel != null)
                {
                    int CacheTime = 30;//缓存时间30秒
                    SetCache(CacheKey, objModel, DateTime.Now.AddSeconds(CacheTime), TimeSpan.Zero);//写入缓存
                }
            }
            Label1.Text = objModel.ToString();
    
        }
        /// <summary>
        /// 获取当前应用程序指定CacheKey的Cache对象值 
        /// </summary>
        /// <param name="CacheKey">索引键值</param>
        /// <returns>返回缓存对象</returns> 
        public static object GetCache(string CacheKey)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            return objCache[CacheKey];
        }
        /// <summary>
        /// 设置当前应用程序指定CacheKey的Cache对象值
        /// </summary>
        /// <param name="CacheKey">索引键值</param>
        /// <param name="objObject">缓存对象</param>
        public static void SetCache(string CacheKey, object objObject)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Insert(CacheKey, objObject);
        }
        /// <summary>
        /// 设置当前应用程序指定CacheKey的Cache对象值
        /// </summary>
        /// <param name="CacheKey">索引键值</param>
        /// <param name="objObject">缓存对象</param>
        /// <param name="absoluteExpiration">绝对过期时间</param>
        /// <param name="slidingExpiration">最后一次访问所插入对象时与该对象过期时之间的时间间隔</param>
        public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Insert(CacheKey, objObject, null, absoluteExpiration, slidingExpiration);
        }
    }
    

      

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  • 原文地址:https://www.cnblogs.com/mengluo/p/6073950.html
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