天猫精灵背景音乐 ，官方文档 上的设置接口不管用，经过询问使用 另一个接口，完美解决

WebSite/Global.asax.cs

@@ -98,6 +98,29 @@ namespace WebSite
             // 在应用程序启动时调用
             PreHot();
             log4net.Config.XmlConfigurator.Configure();//初始化log4net
+            // 全局异常捕获，避免未处理异常导致进程崩溃
+            AppDomain.CurrentDomain.UnhandledException += (s, args) =>
+            {
+                try
+                {
+                    var ex = args.ExceptionObject as Exception;
+                    if (ex != null)
+                    {
+                        logger.Error("UnhandledException:" + ex.Message);
+                        logger.Error(ex.StackTrace);
+                    }
+                }
+                catch { }
+            };
+            TaskScheduler.UnobservedTaskException += (s, args) =>
+            {
+                try
+                {
+                    logger.Error("UnobservedTaskException:" + args.Exception.ToString());
+                    args.SetObserved();
+                }
+                catch { }
+            };
             SetInitAccount();
             StartHostServer();
             //StartHostServerNew();
@@ -201,10 +224,15 @@ namespace WebSite
             var T = sender as Timer;
             try
             {
+                // 防止重入
                 T.Stop();
                 double d = CPUData.GetCPU();
                 DataTongJi.CPU_Data.Add(d);
-                T.Start();
+                // 简单的上限保护，避免长期积累导致内存膨胀
+                //if (DataTongJi.CPU_Data.Count > 1000)
+                //{
+                //    DataTongJi.CPU_Data = new System.Collections.Concurrent.ConcurrentBag<double>();
+                //}
             }
             catch (Exception ex)
             {
@@ -212,6 +240,7 @@ namespace WebSite
             }
             finally
             {
+                // 恢复计时器
                 T.Start();
             }
         }
@@ -773,6 +802,10 @@ namespace WebSite
                 var ip = Request.UserHostAddress;
                 var url = Request.Url.AbsolutePath.ToLower();
 
+            // 定期清理恶意IP记录，避免字典无限增长
+            var nowUtc = DateTime.UtcNow;
+            CleanupIpRecordIfNeeded(nowUtc);
+
                 // 定义要拦截的路径模式
                 var maliciousPatterns = new[] 
                 {
@@ -837,10 +870,40 @@ namespace WebSite
                 {
                     return true;
                 }
+                // 超过统计窗口则重置计数窗口
+                if ((now - info.FirstRequest).TotalMinutes >= 1)
+                {
+                    info.FirstRequest = now;
+                    info.RequestCount = 1;
+                }
             }
             return false;
         }
 
+        // 恶意IP记录清理节流控制
+        private static DateTime _lastIpCleanup = DateTime.MinValue;
+        private static readonly TimeSpan _ipCleanupInterval = TimeSpan.FromMinutes(1);
+        private static readonly TimeSpan _ipRetention = TimeSpan.FromMinutes(10);
+
+        private static void CleanupIpRecordIfNeeded(DateTime nowUtc)
+        {
+            if ((nowUtc - _lastIpCleanup) < _ipCleanupInterval) return;
+            _lastIpCleanup = nowUtc;
+            try
+            {
+                foreach (var kv in _ipRequests.ToArray())
+                {
+                    var info = kv.Value;
+                    if ((nowUtc - info.LastRequest) > _ipRetention)
+                    {
+                        RequestInfo removed;
+                        _ipRequests.TryRemove(kv.Key, out removed);
+                    }
+                }
+            }
+            catch { }
+        }
+
         private class RequestInfo
         {
             public RequestInfo()