C#中UdpClient无法接收数据

流苏晚晴 2016-12-17 03:32:00

用C#写了个UDP程序，但是发现接收的时候一直被阻塞，我用的是同步接收，简单的用了一个while（TRUE）循环接收数据。但是在RecvClient.Receive(ref RemoteEndPoint)这个地方就不动了？下面贴上代码

public void RecieveData()

        {

            IPAddress locip = IPAddress.Parse(LocalIp);

            //IPEndPoint locEndPort = new IPEndPoint(locip, LocalPort);

            IPEndPoint locEndPort = new IPEndPoint(locip, SendToPort);

            if (RecvClient == null)

            {

                RecvClient = new UdpClient(locEndPort);

                RecvClient.Client.ReceiveTimeout = 60000;

                RecvClient.Connect(IPAddress.Parse(SendToIp), SendToPort);

            }



            Thread RecvThread = new Thread(ReceiveMessage);

            RecvThread.Start();

        }

private void ReceiveMessage()

        {

            IPEndPoint RemoteEndPoint = new IPEndPoint(IPAddress.Any, 0);

            //RemoteEndPoint = new IPEndPoint(IPAddress.Parse(LocalIp), SendToPort);

            while (true)

            {

                try

                {

                    //关闭UDPRecvClient会引发异常

                    byte[] receiveBytes = RecvClient.Receive(ref RemoteEndPoint);

                    

                    string msg = Encoding.Unicode.GetString(receiveBytes);

                    string ShowMsg = RemoteEndPoint.ToString() + "：" + msg;

                    //消息容器添加加锁，防止容器信息出错

                    //lock (lockObj)

                    //{

                    //    listMsg.Add(ShowMsg);

                    //}

                    if (msg == SendMsgs)

                    {

                        IsOperateSuccess = true;

                    }

                }

                catch

                {

                    break;

                }

            }

        }