Java Local Address Get getLocalAddresses()

Description

get Local Addresses

License

Open Source License

Declaration

static public String getLocalAddresses() throws UnknownHostException 

Method Source Code

//package com.java2s;
/*//from  ww w .ja  va 2 s .com
 * ISABEL: A group collaboration tool for the Internet
 * Copyright (C) 2009 Agora System S.A.
 * 
 * This file is part of Isabel.
 * 
 * Isabel is free software: you can redistribute it and/or modify
 * it under the terms of the Affero GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Isabel is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * Affero GNU General Public License for more details.
 * 
 * You should have received a copy of the Affero GNU General Public License
 * along with Isabel.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.net.*;
import java.util.*;

public class Main {

    static public String getLocalAddresses() throws UnknownHostException {

        //String host = InetAddress.getLocalHost().getHostName();

        String host = InetAddress.getLocalHost().getCanonicalHostName();

        //String host = InetAddress.getLocalHost().getHostAddress();

        //System.out.println("host: " + host);

        String address = host;

        String localAddress = "";

        //localAddress = InetAddress.getLocalHost().toString().split("/")[1];

        InetAddress inet = getRealIPAdrress();
        if (inet != null) {
            localAddress = inet.toString();
        } else {
            localAddress = InetAddress.getLocalHost().getHostAddress();
        }

        address = address + "/" + localAddress;

        return address;

    }

    public static InetAddress getRealIPAdrress() {
        Enumeration interfaces = null;
        try {
            interfaces = NetworkInterface.getNetworkInterfaces();
        } catch (SocketException e) {
            e.printStackTrace();
        }
        if (interfaces == null)
            return null;

        while (interfaces.hasMoreElements()) {
            NetworkInterface card = (NetworkInterface) interfaces
                    .nextElement();
            Enumeration addresses = card.getInetAddresses();
            if (addresses == null)
                continue;

            while (addresses.hasMoreElements()) {
                InetAddress address = (InetAddress) addresses.nextElement();

                String temp = address.getHostAddress();
                if (!address.isLoopbackAddress() && !temp.startsWith("10.")
                        && !temp.contains(":")) {
                    //si no empieza por "127.0" o "10." devuelvo la ip, o si no tiene ":" que indica que es ipv6
                    return address;
                }
            }
        }
        return null;
    }
}

Related

1. getLocalAddress(String adaptorName)
2. getLocalAddress(String filter)
3. getLocalAddress0()
4. getLocalAddressAsString()
5. getLocalAddresses()
6. getLocalAddresses()
7. getLocalAddresses()
8. getLocalAddressFromNetworkInterfacesListeningOnPort(int pPort)
9. getLocalAddressStrings()