/// <summary>    /// 缓存更新类    /// </summary>    /// <typeparam name="T">缓存对象</typeparam>    public class UpdateCacheHelper<T>    {        /// <summary>        /// 计时器        /// </summary>        private System.Threading.Timer timer;        /// <summary>        /// 缓存时间（分钟）        /// </summary>        private int saveTime;        /// <summary>        /// 默认（毫秒）        /// </summary>        private int intervalTime = 10 * 1000;        /// <summary>        /// 缓存键        /// </summary>        private string cacheKey = string.Empty;        /// <summary>        /// 代理        /// </summary>        private Delegate dele;        /// <summary>        /// 代理的入参        /// </summary>        private object[] objs;        /// <summary>        /// 更新缓存类        /// </summary>        /// <param name="dele">代理</param>        /// <param name="cacheKey">key</param>        /// <param name="saveTime">缓存时间（分钟）</param>        /// <param name="intervalTime">间隔时间（秒）</param>        /// <param name="objs">入参</param>        public UpdateCacheHelper(Delegate dele, string cacheKey, int saveTime, int intervalTime, params object[] objs)        {            this.dele = dele;            this.cacheKey = cacheKey;            this.saveTime = saveTime;            this.intervalTime = intervalTime * 1000;            this.objs = objs;            this.timer = new System.Threading.Timer(new System.Threading.TimerCallback(this.CheckDependencyCallBack), this, 0, this.intervalTime);        }        /// <summary>        /// 从数据库获取数据        /// </summary>        /// <returns>数据</returns>        public T GetData()        {            string assemblyName = this.dele.Target.GetType().Assembly.FullName;            string typeName = this.dele.Target.GetType().FullName;            object instance = Assembly.Load(assemblyName).CreateInstance(typeName);            MethodInfo methodInfo = this.dele.Method;            return (T)methodInfo.Invoke(instance, this.objs);        }        /// <summary>        /// 回调函数        /// </summary>        /// <param name="sender">sender</param>        private void CheckDependencyCallBack(object sender)        {            T newData = this.GetData();            HttpRuntime.Cache.Insert(this.cacheKey, newData, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, this.saveTime, 0), CacheItemPriority.NotRemovable, null);        }    }