c#的udp连接无法连接，接收不到数据！

Question

我也是在网上找的，我要实现的是：我现在手上有个硬件应该是广播的那种，通过ip和端口监听得到硬件发送的数据，但是我测试了一个下午，也没有找到时那儿有问题！就是收不到数据，我用自己写的模拟服务器端可以进行通讯，这是源码：
using System;
using System.Collections;
using System.Net;
using System.Net.Sockets;
using System.Text;public class SelectTcpClient
{
   public static void Main()
   {
      Socket sock = new Socket(AddressFamily.InterNetwork,
                        SocketType.Stream, ProtocolType.Tcp);
      IPEndPoint iep = new IPEndPoint(IPAddress.Parse("192.168.1.12"), 1001);
      byte[] data = new byte[1024];
      string stringData;
      int recv;      sock.Connect(iep);
      Console.WriteLine("Connected to server");
      recv = sock.Receive(data);
      stringData = Encoding.ASCII.GetString(data, 0, recv);
      Console.WriteLine("Received: {0}", stringData);
      while(true)
      {
         stringData = Console.ReadLine();
         if (stringData == "exit")
            break;
         data = Encoding.ASCII.GetBytes(stringData);
         sock.Send(data, data.Length, SocketFlags.None);
         data = new byte[1024];
         recv = sock.Receive(data);
         stringData = Encoding.ASCII.GetString(data, 0, recv);
         Console.WriteLine("Received: {0}", stringData);
      }
      sock.Close();
   }
}
哪位高手可以帮我看看！是什么原因！还是用的不对！该怎么写！

Answer 1

监听应该是
Socket m_Socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
m_Socket.Bind(new IPEndPoint(IP地址, 端口号));
m_Socket.Listen(100);
Socket socket = m_Socket.Accept();byte[] bytes = new byte[1024];
while (m_Socket.Receive(bytes) > 0)
{
  ........
}

Answer 2

      Socket sock = new Socket(AddressFamily.InterNetwork, 
                        SocketType.Stream, ProtocolType.Tcp); 
你用的是UDP还是TCP,该写清楚吧.我这儿有一个UDP连接类        public static string serverIP = 服务端IP;
        public static int serverPort = 服务端端口号;
        //存储返回的数据
        int returnCount = 0;
        public static string localIP = Dns.GetHostEntry(Dns.GetHostName()).AddressList[0].ToString();
        public udpServer()
        {
        }
        Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp);
        /// <summary>
        /// 客户端发送一条信息,返回一条相应的记录信息
        /// </summary>
        /// <param name="send_message">发送信息</param>
        /// <param name="strReturn">是否有返回的值</param>
        /// <returns>返回一个字节数组</returns>
        public byte[] sendMessage(byte[] send_message, bool strReturn)
        {
            IPAddress selfIP = IPAddress.Parse(localIP);
            IPEndPoint selfEP = new IPEndPoint(selfIP, 0);            IPAddress serIP = IPAddress.Parse(serverIP);
            IPEndPoint serEP = new IPEndPoint(serIP, serverPort);            int count = 0;
            EndPoint remort = (EndPoint)serEP;//接收从服务端返回的信息
            socket.SendTo(send_message, send_message.Length, SocketFlags.None, serEP);//发送信息
            if (strReturn == false)
            {
                return null;
            }
            byte[] result = new byte[1024];
            byte[] newResult = null;
            try
            {
                for (int i = 0; i < 6; i++)
                {
                    System.Threading.Thread.Sleep(500);
                    if (socket.Available > 0)
                    {
                        count = socket.ReceiveFrom(result, result.Length, SocketFlags.None, ref remort);//接收指令
                        newResult = new byte[count];
                        Array.Copy(result, newResult, count);
                        break;
                    }
                }
                time.Enabled = false;
                return newResult;
            }
            catch
            {
                return null;
            }
        }

Answer 3

Socket sock = new Socket(AddressFamily.InterNetwork, 
                        SocketType.Stream, ProtocolType.Tcp);
貌似你ｕｄｐ和ＴＣＰ分不清阿。。