Java examples for Network:UDP
Writing a UDP Multicast Server with DatagramChannel
import java.io.IOException; import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.NetworkInterface; import java.net.StandardProtocolFamily; import java.net.StandardSocketOptions; import java.nio.ByteBuffer; import java.nio.channels.DatagramChannel; import java.util.Date; public class Main { public static void main(String[] args) { ByteBuffer datetime;//from ww w . jav a2 s. co m try (DatagramChannel datagramChannel = DatagramChannel .open(StandardProtocolFamily.INET)) { if (datagramChannel.isOpen()) { NetworkInterface networkInterface = NetworkInterface.getByName("test"); datagramChannel.setOption(StandardSocketOptions.IP_MULTICAST_IF, networkInterface); datagramChannel.setOption(StandardSocketOptions.SO_REUSEADDR, true); datagramChannel.bind(new InetSocketAddress(5555)); while (true) { System.out.println("Sending data ..."); datetime = ByteBuffer.wrap(new Date().toString().getBytes()); datagramChannel .send(datetime, new InetSocketAddress(InetAddress.getByName("225.41.5.16"), 5555)); datetime.flip(); } } else { System.out.println("The channel cannot be opened!"); } } catch (IOException ex) { System.err.println(ex); } } }