public static ArrayList<String> getLocalIpAddr()

    {

        ArrayList<String> ipList = new ArrayList<String>();

        InetAddress[] addrList;

        try

        {

            Enumeration interfaces=NetworkInterface.getNetworkInterfaces();

            while(interfaces.hasMoreElements())

            {

                NetworkInterface ni=(NetworkInterface)interfaces.nextElement();

                Enumeration ipAddrEnum = ni.getInetAddresses();

                while(ipAddrEnum.hasMoreElements())

                {

                    InetAddress addr = (InetAddress)ipAddrEnum.nextElement();

                    if (addr.isLoopbackAddress() == true)

                    {

                        continue;

                    }

                    String ip = addr.getHostAddress();

                    if (ip.indexOf(":") != -1)

                    {

                        //skip the IPv6 addr

                        continue;

                    }

                    ipList.add(ip);

                }

            }            

            Collections.sort(ipList);

        }

        catch (Exception e)

        {

            e.printStackTrace();

        }

        return ipList;

    }