/// <summary>
        /// CacheQueue的清理方法
        /// </summary>
        private static void ScavengeCache()
        {
            while (true)
            {
                try
                {
                    //清理周期,在配置文件中进行设置
                    Thread.Sleep(CacheSettingsSection.GetConfig().ScanvageInterval);

                    InternalScavenge();
                }
                catch (ThreadAbortException)
                {
                }
                catch (System.Exception ex)
                {
                    ex.WriteToEventLog("ScavengeCache");

                    //避免死循环,长期占用CPU
                    Thread.Sleep(500);
                }
                finally
                {
                    CacheManager.InScavengeThread = false;
                }
            }
        }
        private void context_BeginRequest(object sender, EventArgs e)
        {
            //CheckAndExecuteScavenge();

            if (CacheSettingsSection.GetConfig().EnableCacheInfoPage)
            {
                if (HttpContext.Current.Request.Url.ToString().LastIndexOf("DeluxeCacheInfo.axd", StringComparison.OrdinalIgnoreCase) >= 0)
                {
                    HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;

                    if (HttpContext.Current.Request.HttpMethod.ToUpper() == "POST")
                    {
                        ClearCacheQueue(HttpContext.Current.Request.Form["cacheQueueTypeName"]);
                    }

                    ShowCacheInfo();

                    HttpContext.Current.Response.End();
                }
            }
        }