.NET自带缓存机制实例

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

namespace SZRPP.Common
{
   /// <summary>
   /// 缓存相关的操作类
   /// </summary>
   public class DataCache
   {
       /// <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)
       {
           System.Web.Caching.Cache objCache = HttpRuntime.Cache;
           return objCache[CacheKey];
       }

/// <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)
       {
           System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            if (objObject!=null)
                objCache.Insert(CacheKey, objObject, null, DateTime.UtcNow.AddDays(7), TimeSpan.Zero);
       }

/// <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, DateTime absoluteExpiration,TimeSpan slidingExpiration )
       {
           System.Web.Caching.Cache objCache = HttpRuntime.Cache;
           objCache.Insert(CacheKey, objObject,null,absoluteExpiration,slidingExpiration);
       }
        /// <summary>
        /// 根据依赖项设置缓存
        /// </summary>
        /// <param name="CacheKey"></param>
        /// <param name="objObject"></param>
        /// <param name="cdep"></param>
        /// <param name="absoluteExpiration"></param>
        /// <param name="slidingExpiration"></param>
        public static void SetCache(string CacheKey, object objObject, CacheDependency cdep, DateTime absoluteExpiration, TimeSpan slidingExpiration)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Insert(CacheKey, objObject, cdep, absoluteExpiration, slidingExpiration);
        }
        /// <summary>
        /// 移除当前应用程序指定CacheKey的Cache值
        /// </summary>
        /// <param name="CacheKey"></param>
        public static void RemoveCache(string CacheKey)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            IDictionaryEnumerator enumerator = HttpRuntime.Cache.GetEnumerator();
            while (enumerator.MoveNext())
            {
                if (enumerator.Key.ToString().IndexOf(CacheKey, System.StringComparison.Ordinal) >= 0)
                    objCache.Remove(enumerator.Key.ToString());
            }

        }
        /// <summary>
        /// 移除当前应用程序所有缓存
        /// </summary>
        public static void RemoveCache()
        {

// retrieve application Cache enumerator
            IDictionaryEnumerator enumerator = HttpRuntime.Cache.GetEnumerator();
            // copy all keys that currently exist in Cache
            while (enumerator.MoveNext())
            {
                HttpRuntime.Cache.Remove(enumerator.Key.ToString());
            }

        }

   }
}

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.NET自带缓存机制实例

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