Method bytesToHex

src/main/java/Util.java:60–70

字节数组转16进制 @param bytes 需要转换的byte数组 @return 转换后的Hex字符串

(byte[] bytes)

     * @return  转换后的Hex字符串
     */
    public static String bytesToHex(byte[] bytes) {
        StringBuffer sb = new StringBuffer();
        for(int i = 0; i < bytes.length; i++) {
            String hex = Integer.toHexString(bytes[i] & 0xFF);
            if(hex.length() < 2){
                sb.append(0);
            }
            sb.append(hex);
        }
        return sb.toString();
    }

    /**
     * hex字符串转byte数组