C# 套接字连接错误

Question

我正在使用 C# 中的套接字，但出现以下错误:

A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied

这是我正在执行的代码:

    private void HostSubscriberService()
    {
        IPAddress ipV4 = PublisherService.ReturnMachineIP();

        var localEP = new IPEndPoint(ipV4, _port);
        var server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        server.Bind(localEP);

        StartListening(server);
    }

    private void StartListening(Socket server)
    {
        EndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
        while (true)
        {
            var data = new byte[1024];
            int recv = server.ReceiveFrom(data, ref remoteEP);
            string messageSendFromClient = Encoding.ASCII.GetString(data, 0, recv);

            MessageBox.Show(messageSendFromClient);
        }
    }

错误发生@ int recv = server.ReceiveFrom(data, ref remoteEP);
我只需要监听新的传入连接，然后打印从新客户端发送的消息。

我需要它在 TCP 协议(protocol)上工作，因为一些消息将 > 1500 字节

谢谢!

Answer 1

您需要 .BeginAccept() 才能收到。

Here's a link with a sinple Asynchronous Socket Server example