import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
import org.junit.Test;
public class TestUDP {
@Test
public void send() throws Exception{
String str = "Hello";
DatagramPacket pack = new DatagramPacket(str.getBytes(),str.getBytes().length,InetAddress.getByName("127.0.0.1"),10000);
DatagramSocket scoket = new DatagramSocket();
for(int i =0; i< 10;i++){
scoket.send(pack);
}
scoket.close();
}
@Test
public void revice() throws Exception{
byte[] by = new byte[1024];
DatagramPacket pack = new DatagramPacket(by,by.length);
DatagramSocket scoket = new DatagramSocket(10000);
while(true){
scoket.receive(pack);
System.out.println(new String(pack.getData()));
}
}
}