HEX格式数据转换成十六进制字符串

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 1 /**

  * Hex格式数据转换成十六进制字符串

  * @param src

  */

 public void bytesToHexString(byte[] by){
       StringBuilder stringBuilder = new StringBuilder("");
       for (int i = 0; i < by.length; i++) {
            int in = by[i] & 0xFF;
            String str= Integer.toHexString(in);
            if (str.length() < 2) {
                stringBuilder.append(0);
            }
            stringBuilder.append(str);
       }
       System.out.println(stringBuilder.toString());
 }