一种方便的方法，它接受表示为长的IP地址，并返回表示同一IP地址的大小为4的字节数组。

/* 
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*时 代 J a v a 公 众 号 - nowjava.com*/

/*

 * This file is part of VIUtils.

 *

 * Copyright ? 2012-2015 Visual Illusions Entertainment

 *

 * VIUtils is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License,

 * or (at your option) any later version.

 *

 * This library 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 GNU Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License along with this library.

 * If not, see http://www.gnu.org/licenses/lgpl.html.

 */

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import static net.visualillusionsent.utils.Verify.notNull;


public class Main{

    public static void main(String[] argv) throws Exception{

        long address = 2;

        System.out.println(java.util.Arrays.toString(longToIPv4(address)));

    }

    /**

     * A convenient method that accepts an IP address represented as a long and

     * returns an byte array of size 4 representing the same IP address.

     *

     * @param address

     *         the long value representing the IP address.

     *

     * @return An {@code byte[]} of size 4.

     */

    public static byte[] longToIPv4(long address) {

        byte[] ip =