asp.net中缓存Cache类的使用案例(附源码)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Web;
namespace Utility
{
??? public class DataCache
??? {
??????? /// <summary>
??????? /// 獲取當前應用程序指定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>
??????? /// 設置當前應用程序指定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;
??????????? objCache.Insert(CacheKey, objObject);
??????? }
??????? /// <summary>
??????? /// 設置當前應用程序指定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>
??????? /// 清除單一鍵緩存
??????? /// </summary>
??????? /// <param name="key"></param>
??????? public static void RemoveOneCache(string CacheKey)
??????? {
??????????? System.Web.Caching.Cache objCache = HttpRuntime.Cache;
??????????? objCache.Remove(CacheKey);
??????? }
??????? /// <summary>
??????? /// 清除所有緩存
??????? /// </summary>
??????? public static void RemoveAllCache()
??????? {
??????????? System.Web.Caching.Cache _cache = HttpRuntime.Cache;
??????????? IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
??????????? if (_cache.Count > 0)
??????????? {
??????????????? ArrayList al = new ArrayList();
??????????????? while (CacheEnum.MoveNext())
??????????????? {
??????????????????? al.Add(CacheEnum.Key);
??????????????? }
??????????????? foreach (string key in al)
??????????????? {
??????????????????? _cache.Remove(key);
??????????????? }
??????????? }
??????? }
??????? /// <summary>
??????? /// 以列表形式返回已存在的所有緩存
??????? /// </summary>
??????? /// <returns></returns>
??????? public static ArrayList ShowAllCache()
??????? {
??????????? ArrayList al = new ArrayList();
??????????? System.Web.Caching.Cache _cache = HttpRuntime.Cache;
??????????? if (_cache.Count > 0)
??????????? {
??????????????? IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
??????????????? while (CacheEnum.MoveNext())
??????????????? {
??????????????????? al.Add(CacheEnum.Key);
??????????????? }
??????????? }
??????????? return al;
??????? }
??? }
???
}
轉載于:https://www.cnblogs.com/itvip/archive/2013/04/15/3022145.html
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