Java IP Address Get getIpByName(String name)

Description

Calcula la ip a partir del nombre

License

Open Source License

Parameter

Parameter	Description
name	nombre a resolver

Return

ip

Declaration

static public String getIpByName(String name) 

Method Source Code

//package com.java2s;
/*//from   w  w w  .  ja  v  a  2 s  . c  om
 * 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.*;

public class Main {
    /**

     * Calcula la ip a partir del nombre

     * @param name nombre a resolver

     * @return ip

     * @Author enrique

     */

    static public String getIpByName(String name) {
        //Cambio la direccion por la direccion literal y la pongo
        //entre corchetes si es IPv6, si tiene varias me quedo con la ipv4

        InetAddress[] address;
        try {
            address = InetAddress.getAllByName(name);
        } catch (UnknownHostException e) {
            e.printStackTrace();
            return null;
        }

        int i = 0;
        String ip = "";
        if (address.length > 1) {
            for (i = 0; i < address.length; i++) {
                if (address[i] instanceof Inet4Address) {
                    ip = address[i].getHostAddress();
                    break;
                }
            }
        } else {
            ip = address[0].getHostAddress();
        }

        if (address[i] instanceof Inet6Address)
            ip = "[" + ip + "]";

        return ip;
    }
}

Related

1. getIPAdresses()
2. getIpByHost(String hostName)
3. getIpByHost(String hostName)
4. getIpByHost(String hostName)
5. getIPByInterfaceName(String name)
6. getIpByNetworkInterfaceName(String name)
7. getIPFromHash(final long ipHash)
8. getIPFromInterface(String ni)
9. getIPFromNetworkInterface()