Question

我已经在MSDN上使用TCP套接字在两个设备之间发送数据时应对并粘贴了可用的示例，并且我一直得到“无法建立连接，因为目标计算机主动拒绝它”< / p>

客户端：

try
{
    //Create the StreamSocket and establish a connection to the echo server.
    Windows.Networking.Sockets.StreamSocket socket = new Windows.Networking.Sockets.StreamSocket();

    //The server hostname that we will be establishing a connection to. We will be running the server and client locally,
    //so we will use localhost as the hostname.
    Windows.Networking.HostName serverHost = new Windows.Networking.HostName("localhost");

    //Every protocol typically has a standard port number. For example HTTP is typically 80, FTP is 20 and 21, etc.
    //For the echo server/client application we will use a random port 1337.
    string serverPort = "7777";
    await socket.ConnectAsync(serverHost, serverPort);

    //Write data to the echo server.
    Stream streamOut = socket.OutputStream.AsStreamForWrite();
    StreamWriter writer = new StreamWriter(streamOut);
    string request = "test";
    await writer.WriteLineAsync(request);
    await writer.FlushAsync();

    //Read data from the echo server.
    Stream streamIn = socket.InputStream.AsStreamForRead();
    StreamReader reader = new StreamReader(streamIn);
    string response = await reader.ReadLineAsync();
}
catch (Exception e)
{
    //Handle exception here.            
}

服务器：

private async void Button_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                //Create a StreamSocketListener to start listening for TCP connections.
                StreamSocketListener socketListener = new StreamSocketListener();

                //Hook up an event handler to call when connections are received.
                socketListener.ConnectionReceived += SocketListener_ConnectionReceived;

                //Start listening for incoming TCP connections on the specified port. You can specify any port that's not currently in use.

                await socketListener.BindServiceNameAsync("7777");

            }
            catch (Exception ex)
            {
                //Handle exception.
            }
        }

        private async void SocketListener_ConnectionReceived(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
        {
            //Read line from the remote client.
            Stream inStream = args.Socket.InputStream.AsStreamForRead();
            StreamReader reader = new StreamReader(inStream);
            var request = await reader.ReadLineAsync();

            //Send the line back to the remote client.
            Stream outStream = args.Socket.OutputStream.AsStreamForWrite();
            StreamWriter writer = new StreamWriter(outStream);
            await writer.WriteLineAsync(request);
            await writer.FlushAsync();
        }

有谁能告诉我这里缺少什么？我已经添加了所需的功能，并使用了两台PC来运行它，但仍然没有运气:(

无法连接到UWP中的服务器套接字

0 个答案: