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Thread: UDP packet is not receiving by MUX (Gospell) while using Multicasting in java

  1. #1
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    Exclamation UDP packet is not receiving by MUX (Gospell) while using Multicasting in java

    import java.net.*;

    public class SendConfig
    {
    InetAddress SYSTEM_IP;
    int SYSTEM_PORT = 5000;
    InetAddress MULTICAST_IP;
    int PORT = 6000;
    int TTL = 1;

    DatagramPacket sendPacket;
    MulticastSocket socket;

    public ststic void main(String[] args)
    {
    new SendConfig().sendUDP();
    }

    SendConfig()
    {
    try
    {
    SYSTEM_IP = InetAddress.getByName("192.168.1.6");
    MULTICAST_IP = InetAddress.getByName("226.1.1.1");
    SocketAddress socket_address = new InetSocketAddress(SYSTEM_IP,SYSTEM_PORT);
    socket = new MulticastSocket(socket_address);
    socket.connect(MULTICAST_IP,PORT);
    NetworkInterface NI = NetworkInterface.getByName("eth0");
    socket.setNetworkInterface(NI);
    socket.setInterface(SYSTEM_IP);
    socket.setTimeToLive(TTL);
    sendUDP(datagram);
    }
    catch(Exception E)
    {
    System.out.println("In Constructor :: "+E);
    }
    }

    void sendUDP()
    {
    byte[] config_datagram = {'h','e','l','l','o'};

    Thread thr = new Thread()
    {
    public void run()
    {

    try
    {
    while(true)
    {
    sendPacket = new DatagramPacket(config_datagram ,config_datagram .length);
    socket.send(sendPacket);
    sleep(1000);
    }
    }
    catch(Exception E)
    {
    System.out.println("in Sending :: "+E);
    }
    }
    };
    thr.start();
    }
    }


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    Default Re: UDP packet is not receiving by MUX (Gospell) while using Multicasting in java

    Welcome to the Forum! Please read this topic to learn how to post your code correctly along with other useful info for newcomers.

  3. #3
    Member andbin's Avatar
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    Default Re: UDP packet is not receiving by MUX (Gospell) while using Multicasting in java

    @aayush350: your code, for what I see, should not even compile, because the anonymous inner class for the Thread cannot "see" the local variable config_datagram .... unless it is marked final (and actually it's not so).

    And note also the mispelled:
    public ststic void main(String[] args)
    Andrea, www.andbin.net SCJP 5 (91%) SCWCD 5 (94%)

    Useful links for Java beginners My new project Java Examples on Google Code

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