import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
public class Util{
/**
* Finds a local, non-loopback, IPv4 address
*
* @return The first non-loopback IPv4 address found, or
* null if no such addresses found
* @throws SocketException
* If there was a problem querying the network
* interfaces
*/
public static InetAddress getLocalAddress() throws SocketException
{
Enumeration ifaces = NetworkInterface.getNetworkInterfaces();
while( ifaces.hasMoreElements() )
{
NetworkInterface iface = ifaces.nextElement();
Enumeration addresses = iface.getInetAddresses();
while( addresses.hasMoreElements() )
{
InetAddress addr = addresses.nextElement();
if( addr instanceof Inet4Address && !addr.isLoopbackAddress() )
{
return addr;
}
}
}
return null;
}
}