get IP, but not 127.0.0.1

[Leandro Coutinho]

Howdy!

How can I get IP, but not 127.0.0.1.
Thank you!

java.net.InetAddress i = java.net.InetAddress.getLocalHost();
System.out.println(i.getHostAddress());

[Leandro Coutinho]

Howdy!

I could solve my problem.

String command = null;
            if(System.getProperty("os.name").equals("Linux"))
                command = "ifconfig";
            else
                command = "ipconfig";
            Runtime r = Runtime.getRuntime();
            Process p = r.exec(command);
            Scanner s = new Scanner(p.getInputStream());

            StringBuilder sb = new StringBuilder("");
            while(s.hasNext())
                sb.append(s.next());
            String ipconfig = sb.toString();
            Pattern pt = Pattern.compile("192\\.168\\.[0-9]{1,3}\\.[0-9]{1,3}");
            Matcher mt = pt.matcher(ipconfig);
            mt.find();
            String ip = mt.group();

[Mike Peters]

You can also iterate over the network interfaces in Java. For example:

            String result = null;
            Enumeration<NetworkInterface> interfaces = null;
            try {
                interfaces = NetworkInterface.getNetworkInterfaces();
            } catch (SocketException e) {
                // handle error
            }

            if (interfaces != null) {
                while (interfaces.hasMoreElements() && Util.isEmpty(result)) {
                    NetworkInterface i = interfaces.nextElement();
                    Enumeration<InetAddress> addresses = i.getInetAddresses();
                    while (addresses.hasMoreElements() && (result == null || result.isEmpty())) {
                        InetAddress address = addresses.nextElement();
                        if (!address.isLoopbackAddress()  &&
                                address.isSiteLocalAddress()) {
                            result = address.getHostAddress();
                        }
                    }
                }
            }