看代码即可,将字节流转为十六进制,方便显示,是常用的方法:
package com.test; import java.util.Arrays; public class Bytes { private final static byte[] hex = "0123456789ABCDEF".getBytes(); private static int parse(char c) { if (c >= 'a') return (c - 'a' + 10) & 0x0f; if (c >= 'A') return (c - 'A' + 10) & 0x0f; return (c - '0') & 0x0f; } // 从字节数组到十六进制字符串转换 public static String Bytes2HexString(byte[] b) { byte[] buff = new byte[2 * b.length]; for (int i = 0; i < b.length; i++) { buff[2 * i] = hex[(b[i] >> 4) & 0x0f]; buff[2 * i + 1] = hex[b[i] & 0x0f]; } return new String(buff); } // 从十六进制字符串到字节数组转换 public static byte[] HexString2Bytes(String hexstr) { byte[] b = new byte[hexstr.length() / 2]; int j = 0; for (int i = 0; i < b.length; i++) { char c0 = hexstr.charAt(j++); char c1 = hexstr.charAt(j++); b[i] = (byte) ((parse(c0) << 4) | parse(c1)); } return b; } public static void main(String[] args) { byte[] bt = new byte[]{10, 2, 12, 14, 1, 0, 0, 1, 0, 31, 45, 1, 8, 0, 1, 0, -96, -45, 10, 3}; System.out.println(Bytes2HexString(bt)); System.out.println(Arrays.toString(HexString2Bytes("0A020C0E01000001001F2D0108000100A0D30A03"))); } }
打印结果:
0A020C0E01000001001F2D0108000100A0D30A03 [10, 2, 12, 14, 1, 0, 0, 1, 0, 31, 45, 1, 8, 0, 1, 0, -96, -45, 10, 3]
仅供参考。