将字节数组转换为十六进制格式。

/*

 * WireSpider

 *

 * Copyright (c) 2015 kazyx

 *

 * This software is released under the MIT License.

 * http://opensource.org/licenses/mit-license.php

 *//**时 代 J a v a - nowjava.com**/

//package com.nowjava;


public class Main {

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

        byte[] bytes = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };

        System.out.println(toHex(bytes));

    }


    private static final char[] HEX_SOURCE = { '0', '1', '2', '3', '4',

            '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };


    /**

     * Convert byte array to HEX format.

     *

     * @param bytes Source byte array

     * @return HEX format.

     */

    public static String toHex(byte[] bytes) {

        StringBuilder sb = new StringBuilder();

        sb.append("0x");

        for (