socket发送信息，服务端接收并返回信息，客户端卡死

[cjf3cjf]

我要实现一个效果，客户端通过socket发消息给服务端，然后服务端收到信息后立即返回一个信息给客户端接收。但是客户端总是卡死，我尝试把客户端的接收服务端返回信息这一段代码去掉就不会卡死，但不知道为什么，请高人们帮我一下，多谢！

服务端：

    Thread thrListener = null;
        private void FormMain_Load(object sender, EventArgs e)
        {

            try
            {
                thrListener = new Thread(new ThreadStart(Listen));
                thrListener.Start();
                
                                
            }
            catch (Exception ex)
            {
                System.Windows.Forms.MessageBox.Show(ex.Message);

            }

        }
        //监听数据
        private void Listen()
        {
            try
            {
                IPEndPoint ip = new IPEndPoint(IPAddress.Any, int.Parse(rport.Text));

                Socket listener = new Socket(AddressFamily.InterNetwork,
                    SocketType.Stream, ProtocolType.Tcp);

                listener.Bind(ip);



                //不断监听端口
                while (true)
                {

                    listener.Listen(10);

                    Socket socket = listener.Accept();
                    NetworkStream ntwStream = new NetworkStream(socket);
                    StreamReader strmReader = new StreamReader(ntwStream);
                    
                    Invoke(new PrintRecvMssgDelegate(PrintRecvMssg),
                        new object[] { strmReader.ReadToEnd() });

                    //返回给客户端
                    byte[] sendByte = Encoding.UTF8.GetBytes("返回给客户端的信息");
                    socket.Send(sendByte, sendByte.Length, 0);
                    socket.Shutdown(SocketShutdown.Both);

                    socket.Close();


                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

            
        }

        //线程内向文本框txtRecvMssg中添加字符串及委托
        private delegate void PrintRecvMssgDelegate(string s);
        private void PrintRecvMssg(string info)
        {
            if (info == "")
            {
                return;
            }

            this.txtSendMssg.Text += "\r\n" + string.Format("[{0}]:{1}\r\n",
                   DateTime.Now.ToLongTimeString(), "监听到信息") + info;
 
        }
      

客户端

 private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                

                IPAddress ip = IPAddress.Parse("127.0.0.1");
                IPEndPoint ipe = new IPEndPoint(ip, int.Parse(28000));

                Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                clientSocket.Connect(ipe);

                Byte[] bytSend = Encoding.UTF8.GetBytes("发送给服务端的信息");
                clientSocket.Send(bytSend);


                /////接收服务端返回的信息，去掉下面这一段就不卡死，加上去就卡死
                byte[] byteReceive = null;
                int count, size = 512;
                byte[] data = new byte[size];
                MemoryStream ms = new MemoryStream();
                while (0 != (count = clientSocket.Receive(data, size, SocketFlags.None)))
                    ms.Write(data, 0, count);
                byteReceive = ms.ToArray();
                ms.Close();
                //////


                clientSocket.Shutdown(SocketShutdown.Both);
                clientSocket.Close();    

                
            }
            catch (Exception ex)
            {
                System.Windows.Forms.MessageBox.Show(ex.Message);

            }
        }

注意：只是客户端加上加上接收从服务端返回信息的代码后才会卡死，不加上的话其他功能都是正常运转的。请大家帮我看看吧！

[csdnnetman]

你那个接收是耗时操作，你放到ui线程当然会卡，异步操作下

[倒退一天]

把耗时的操作放到线程去操作 Thread btnProcessThread = null; private void btnProcessFun() { IPAddress ip = IPAddress.Parse("127.0.0.1"); IPEndPoint ipe = new IPEndPoint(ip, int.Parse(28000)); Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); clientSocket.Connect(ipe); Byte[] bytSend = Encoding.UTF8.GetBytes("发送给服务端的信息"); clientSocket.Send(bytSend); /////接收服务端返回的信息，去掉下面这一段就不卡死，加上去就卡死 byte[] byteReceive = null; int count, size = 512; byte[] data = new byte[size]; MemoryStream ms = new MemoryStream(); while (0 != (count = clientSocket.Receive(data, size, SocketFlags.None))) ms.Write(data, 0, count); byteReceive = ms.ToArray(); ms.Close(); ////// clientSocket.Shutdown(SocketShutdown.Both); clientSocket.Close(); } private void button2_Click(object sender, EventArgs e) { try { btnProcessThread = new Thread(new ThreadStart(btnProcessFun)); btnProcessThread.Start(); } catch (Exception ex) { System.Windows.Forms.MessageBox.Show(ex.Message); } }

[cjf3cjf]

引用

你那个接收是耗时操作，你放到ui线程当然会卡，异步操作下

具体如何做，请给个提示，我是小白

[chunli200902520208]

socket ,ReceiveTimeout超时时间设置，从什么时候开始计算的，比如设置5秒，是从连接上服务器，到客户端接收到数据的事件间隔？如果客户端while循环接收，是不是意味着 每隔5秒钟 客户端没有接收到服务端的应对都会超时？

[啥都不懂所以不当程序猿]

接收信息专门用个线程来做就行了

[大牌鸡腿]

接收也放到线程里就行了

[datafansbj]

while (0 != (count = clientSocket.Receive(data, size, SocketFlags.None))) 这一行是什么鬼？25年的老程序员表示看不懂。