c# - 服务器-客户端Windows窗体应用程序C#

Question

我正在尝试在Visual Studio中设置服务器和客户端模拟，但是在使其正常工作方面存在问题。两个程序都运行，但是我得到的全部是输出“System.Byte []”。这是我第一次尝试制作这样的应用程序。我从控制台应用程序处理了一些代码，因此我一直在尝试使其适应Windows窗体。

这是客户端代码:

private void Form1_Load(object sender, EventArgs e)
    {
        textBox1.Text = "Client has Made Connection to Server OK";

    }

    private void button1_Click(object sender, EventArgs e)
    {
        Socket sck = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

        int port;
        port = int.Parse(textBox4.Text);
        IPEndPoint endpoint = new IPEndPoint(IPAddress.Parse(textBox5.Text), port);


        sck.Connect(endpoint);

        //textBox1.Text = "Client has Made Connection to Server OK";

        Byte[] recbuffer = new byte[255];
        int rec = sck.Receive(recbuffer, 0, recbuffer.Length, 0);
        Array.Resize(ref recbuffer, rec);

        string temp = recbuffer.ToString();

        textBox2.Text = "Received: {0}" + temp;

        // sending string to server
        string msg = textBox3.Text;
        byte[] msgbuffer = Encoding.Default.GetBytes(msg);
        sck.Send(msgbuffer, 0, msgbuffer.Length, 0);


        Console.Read();
    }

这是服务器代码:

private void Form1_Load(object sender, EventArgs e)
    {
        IPEndPoint ip = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9939);
        Socket sck = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

        sck.Bind(ip);
        sck.Listen(0);

        Socket acc = sck.Accept();

        textBox1.Text = "Connection has been made to the server from the Client";

        byte[] buffer = Encoding.Default.GetBytes("Hello sent from Server to Client");
        string displayBuffer = buffer.ToString();
        textBox2.Text = displayBuffer;
        acc.Send(buffer, 0, buffer.Length, SocketFlags.None);

        byte[] recbuffer = new byte[255];

        int rec = acc.Receive(recbuffer, 0, recbuffer.Length, 0);

        Array.Resize(ref recbuffer, rec);

        string temp = recbuffer.ToString();

        textBox3.Text = "received from client the string: " + temp;

        Console.Read();

    }

Answer 1

问题出在行中

 string temp = recbuffer.ToString();

在客户端代码和服务器代码上均如此。

您需要更改为

 string temp = System.Text.Encoding.Default.GetString(recbuffer);

通过ToString方法要求字节数组返回字符串仅返回类的名称，因为字节数组无法将自身转换为字符串。