c# - C#套接字未发送完整的数据

Question

我正在尝试创建一个客户端/服务器应用程序，其中服务器向客户端发送命令，客户端将结果发送回去。客户端发送数据是这样的:

5|Hello

5是要发送的字符串的长度，因为然后服务器在对数据进行某些处理之前便知道应接收多少个字符。我试图用下面的代码做到这一点:

 private static void ReceiveCallback(IAsyncResult AR)
        {
            try
            {
                while (!Encoding.ASCII.GetString(_buffer).Contains("|"))
                {
                }
                string[] a = Encoding.ASCII.GetString(_buffer).Split('|');
                while (Encoding.ASCII.GetString(_buffer).Length < (Int32.Parse(a[0]) + a[0].Length + 1))
                {
                }
                Socket socket = (Socket)AR.AsyncState;
                    int received = socket.EndReceive(AR);
                    byte[] dataBuf = new byte[received];
                    Array.Copy(_buffer, dataBuf, received);
                    string text = Encoding.ASCII.GetString(dataBuf);
                    if (!text.Contains("GET") && !text.Contains("HTTP") && text != null)
                    {
                        
                            Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + ":" + text);
                    }
                socket.BeginReceive(_buffer, 0, _buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);

            }
            catch
            {

            }
        }

但这仍然不能给我正确的结果。同样，CPU变得很高。
结果图片:

有人可以解释一下为什么会这样吗？谢谢!

Answer 1

您是否尝试过使用TcpClient？它可以更轻松地为您提供更多控制权。

就像是;

//make connection
NetworkStream stream = null;
socket = new TcpClient();
socket.Connect("192.168.12.12", 15879);
if (socket.Connected) {
    stream = socket.GetStream();
}

//and than wait for tcp packets.
connectionThread = new Thread(ListenServer);
connectionThread.Start();

private void ListenToServer() {
    Byte[] data = new Byte[1024];
    String message = String.Empty;
    Int32 dataLength = 0;
    while (socket.Connected) {
    try {
        while (stream.DataAvailable) {
            dataLength = stream.Read(data, 0, data.Length);
            message = System.Text.Encoding.UTF8.GetString(data, 0, dataLength);
            //do what ever you need here
            Thread.Sleep(1);
        }
    } catch (Exception ex) {
    }
    Thread.Sleep(100);
}

而且％1 cpu负载!