.NET 端口监听

1.直接调用微软socket对象处理

  static void Main(string[] args){try{IPAddress ip = new IPAddress(new byte[] { 127, 0, 0, 1 });//在3721端口新建一个TcpListener对象TcpListener listener = new TcpListener(ip, 3721); listener.Start();Console.WriteLine("started listening..");//开始监听while (true){Socket s = listener.AcceptSocket();string remote = s.RemoteEndPoint.ToString();//允许js跨越访问var bytes = System.Text.Encoding.UTF8.GetBytes("HTTP/1.1 200 OK
Access-Control-Allow-Origin: * 

OK");s.Send(bytes);s.Shutdown(SocketShutdown.Send);}}catch (System.Security.SecurityException){Console.WriteLine("firewall says no no to application – application cries..");}catch (Exception){Console.WriteLine("stoped listening..");}}