如何尽快检测断线，因为它在ASP.NET必有池？ [英] How to detect a disconnection as soon as it happens on ASP.NET without pooling?

问题描述

我有一个服务器发送的事件在ASP.NET 处理程序

Response.ContentType = "text/event-stream";
while (true)
{
   if(thereIsAMessage)
   {
       Response.Write(message);
       Response.Flush();
       if (Response.IsClientConnected == false)
       {
           break;
       }
   }

   System.Threading.Thread.Sleep(1000);
}

问题是，我只能检测客户端断开连接时，我送点东西给客户端。而且我不希望轮询它，这违背了摆在首位使用服务器发送的事件的整个目的。

The problem is that I can only detect a client disconnection when I send something to the client. And I don't want to poll it, which defeats the whole purpose of using Server-sent events in the first place.

推荐答案

尝试一下 SignalR - 长期有效投票时，服务器通知将不难实现。可用时使用的WebSockets。你的情况可以用集线器来实现非常容易。

Try to look at SignalR - useful for long polling, server notifications won't be difficult to implement. Uses websockets when available. Yours scenario can be implemented very easily using hubs.

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