确定端口消息源自 [英] Determine ports messages originated from

问题描述

我有一个正在运行的Windows服务，它实现了一个带有4个前缀的HTTP侦听器，每个前缀具有不同的端口号.从这些端口中的任何一个端口接收到消息时，我想确定消息源自哪个端口.任何帮助将不胜感激.

这是我的代码:

I have an windows service running, implementing an HTTP Listener with 4 prefixes, each with different port numbers. When a message is received from either of those ports, I would like to determine which port the message originated from. Any help would be appreciated.

Here is my code:

public void Listen(string[] prefix)
        {
            httpListener = new HttpListener();

            foreach (string s in prefix)
            {
                httpListener.Prefixes.Add(s);
            }

            //start the listener
            httpListener.Start();

            startListening();
        }

        public void startListening()
        {
            while (isTrue)
            {
                HttpListenerContext httpContext = httpListener.GetContext();
                HttpListenerRequest request = httpContext.Request;
                //string portNumber = ??????

                switch (portNumber)
                {
                    case 1:
                        //do something
                        break;
                    case 2:
                        //do something
                        break;
                    case 3:
                        //do something
                        break;
                    default:
                        Console.WriteLine("invalid port");
                        break;
                }
            }
        }

推荐答案

.NET类ActionExecutingContext为ActionExecuting方法提供了上下文.我们可以使用ActionExecutingContext获取消息源端口，如下所示:

.NET class ActionExecutingContext provides the context for the ActionExecuting method. We can fetch the message originating port using ActionExecutingContext as:

ActionExecutionContext.HttpContextBase.Url.Port;

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