Java 中二进制转换成十六进制的两种实现方法

 /** * 每个字节转成16进制,方法1 * * @param result */ private static String toHex(byte[] result) { StringBuffer sb = new StringBuffer(result.length * 2); for (int i = 0; i > 4, 16)); sb.append(Character.forDigit(result[i] & 15, 16)); } return sb.toString(); } 

 /** * 每个字节转成16进制,方法2 * * @param result * @return */ private static String toHex2(byte[] result) { StringBuffer sb = new StringBuffer(result.length * 2); for (int i = 0; i > 4) & 0x0f); int low = result[i] & 0x0f; sb.append(hight > 9 ? (char) ((hight - 10) + 'a') : (char) (hight + '0')); sb.append(low > 9 ? (char) ((low - 10) + 'a') : (char) (low + '0')); } return sb.toString(); }