Java中byte[]进制转换

/**
     * byte数组转换为二进制字符串,每个字节以","隔开
     *
     * @param b
     * @return
     */    public static String parseBytesTo2Hex(byte[] b) {
        StringBuffer result = new StringBuffer();

        for (int i = 0; i < b.length; i++) {
            result.append(Long.toString(b[i] & 0xff, 2) + ",");
        }

        return result.toString().substring(0, result.length() - 1);
    }

/**
     * 二进制字符串转换为byte数组,每个字节以","隔开
     *
     * @param hex2Str
     * @return
     */    public static byte[] parse2HexToBytes(String hex2Str) {
        String[] temp = hex2Str.split(",");
        byte[] b = new byte[temp.length];

        for (int i = 0; i < b.length; i++) {
            b[i] = Long.valueOf(temp[i], 2).byteValue();
        }

        return b;
    }

/**
     * byte数组转换为十六进制的字符串
     *
     * @param b
     * @return
     */    public static String parseBytesTo16Hex(byte[] b) {
        StringBuffer result = new StringBuffer();

        for (int i = 0; i < b.length; i++) {
            if ((b[i] & 0xff) < 0x10)
                result.append("0");
            result.append(Long.toString(b[i] & 0xff, 16));
        }

        return result.toString().toUpperCase();
    }

/**
     * 十六进制的字符串转换为byte数组
     * 
     * @param hex16Str
     * @return
     */    public static byte[] parse16HexToBytes(String hex16Str) {
        char[] c = hex16Str.toCharArray();
        byte[] b = new byte[c.length / 2];

        for (int i = 0; i < b.length; i++) {
            int pos = i * 2;
            b[i] = (byte) ("0123456789ABCDEF".indexOf(c[pos]) << 4 | "0123456789ABCDEF".indexOf(c[pos + 1]));
        }

        return b;
    }