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System.Web.Caching.Cache删除某键后,希望同时触发其它动作(关键时刻,还是事件靠的住)

System.Web.Caching.Cache是.net为我们提供的一个轻量级的缓存组件,它提供了最基础的增,增过期,删除,获取等操作,下面是对Cache进行的一个封装,方便以后统一调用和扩展。
/// <summary>
    /// 缓o存?相à关?的?操ù作÷类à
    /// 占?占?
    /// </summary>
    public class DataCache
    {
        /// <summary>
        /// 获?取?当±前°应|用?程ì序ò指?定¨CacheKey的?Cache值μ
        /// </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è置?当±前°应|用?程ì序ò指?定¨CacheKey的?Cache值μ
        /// 调÷用?:oDataCache.SetCache("name", "zzl");
        /// </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>
        /// 设è置?当±前°应|用?程ì序ò指?定¨CacheKey的?Cache值μ
        /// 调÷用?:oDataCache.SetCache("name", "zzl", DateTime.Now.AddMinutes(1), TimeSpan.Zero);
        /// </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>
        /// 移?除y指?定¨Cache
        /// </summary>
        /// <param name="CacheKey"></param>
        public static void RemoveCache(string CacheKey)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Remove(CacheKey);

        }

        #region Events
        /// <summary>
        /// 缓o存?删?除y事?件t
        /// </summary>
        public static event CacheEventHandler CacheDeleted;
        #endregion

        #region Methods
        /// <summary>
        /// 触¥发¢缓o存?删?除y事?件t
        /// </summary>
        public static void OnCacheDeleted(string key)
        {
            if ((CacheDeleted != null))
            {
                CacheDeleted(null, new CacheEventArgs(key));
            }

           Remove(key);

        }
        #endregion
    }

    #region Delegates
    /// <summary>
    /// 缓o存?委ˉ托D
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    public delegate void CacheEventHandler(object sender, CacheEventArgs e);
    #endregion

    /// <summary>
    /// 缓o存?事?件t源′
    /// </summary>
    public class CacheEventArgs
    {
        public CacheEventArgs()
        {

        }
        public CacheEventArgs(string cacheKey)
        {
            this.CacheKey = cacheKey;
        }
        public string CacheKey { get; set; }
    }

在这个类中,有一个关于删除键时的事件,它的作用是在删除某个键时,进行与它关联的其它操作,例如:在用户登出时,希望将它的cache记录清除,并删除一些记录性的操作,但记录性的操作是不固定的,为了为破坏程序的完整性,我们可以在登出时,先去将其需要的操作进行有订阅,如果以后有其它删除cache键需要的关联操作,只要订阅就可以了
代码如下:
static CommonMethod()
       {
           iUserRepository = new UserRepository();
           //订?阅?了?CacheDeleted这a个?事?件t,?当±它ü被?触¥发¢时±,?将?自?动ˉ执′行D被?绑ó定¨的?方?法¨
           DataCache.CacheDeleted += new CacheEventHandler(ClearUserRecord);
    

补充:Web开发 , ASP.Net ,
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