?? multicastsendingthread.java
字號:
//MulticastSendingThread是一個線程,它通過一個Multicast datagram來廣播消息。
package fish.server;
import java.io.*;
import java.net.*;
import fish.*;
public class MulticastSendingThread extends Thread {
//消息數據
private byte[] messageBytes;
public MulticastSendingThread( byte[] bytes ) {
super( "MulticastSendingThread" );
messageBytes = bytes;
}
public void run() {
//發送消息
try {
//創建一個DatagramSocket來發送消息
DatagramSocket socket = new DatagramSocket(
FishConstants.MULTICAST_SENDING_PORT );
InetAddress group = InetAddress.getByName(
FishConstants.MULTICAST_ADDRESS );
//創建一個包含消息的DatagramPacket
DatagramPacket packet = new DatagramPacket( messageBytes,
messageBytes.length, group, FishConstants.MULTICAST_LISTENING_PORT );
socket.send( packet );
socket.close();
}
catch ( IOException ioException ) {
ioException.printStackTrace();
}
}
}
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