Question

我正在尝试在C＃中的客户端和服务器之间发送数据。我对此很新。我在同一台机器上运行这些，因此是localhost。

服务器可以从客户端接收数据，但即使发送了客户端，客户端也似乎永远不会收到回复。

客户端： 客户端将数据（“apple”）发送到服务器并应收到回复。

       TcpClient client = new TcpClient("localhost", 1334); //Currently localhost
        StreamReader sr = new StreamReader(client.GetStream());
        StreamWriter sw = new StreamWriter(client.GetStream());

        string sendData = "apple";
        sw.WriteLine(sendData);
        sw.Flush();

        string data = sr.ReadLine();

        if (data != null)
        {
         MessageBox.Show("It worked!");
         }
         else
         {
           MessageBox.Show("No data.");
         }


        client.Close();

服务器 服务器将侦听数据。当它收到数据时，它会检查它是否是苹果，然后回答“是”。

        TcpListener listener = new TcpListener(1334);
        listener.Start();

        while (true)
        {
            TcpClient client = listener.AcceptTcpClient();
            StreamReader sr = new StreamReader(client.GetStream());
            StreamWriter sw = new StreamWriter(client.GetStream());

            string request = sr.ReadLine();

            if(request == "apple")
            {
                Console.WriteLine(request); // Print that to the console so we know it was received okay
                sw.WriteLine("yes\n");
                client.Close();
            }

感谢所有帮助。

Answer 1

Furmek评论道：

我看到两件事：添加一个sw.Flush（）;在服务器端之前 client.Close（）;

工作服务器代码

    TcpListener listener = new TcpListener(1334);
    listener.Start();

    while (true)
    {
        TcpClient client = listener.AcceptTcpClient();
        StreamReader sr = new StreamReader(client.GetStream());
        StreamWriter sw = new StreamWriter(client.GetStream());

        string request = sr.ReadLine();

        if(request == "apple")
        {
            Console.WriteLine(request); // Print that to the console so we know it was received okay
            sw.WriteLine("yes\n");
            sw.Flush(); // sw.Flush(); Added here!!
            client.Close();
        }

C＃Server Client似乎只能以一种方式工作

1 个答案: