怎样获取IP地址

public String getLocalIpAddress(){

try {

for(Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();en.hasMoreElements();){

NetworkInterface intf = en.nextElement();

for(Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses();enumIpAddr.hasMoreElements();){

InetAddress inetAddress = enumIpAddr.nextElement();

if(!inetAddress.isLoopbackAddress()){

return inetAddress.getHostAddress().toString();

}

}

}

} catch (SocketException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return null;

}