Question

I have an XML File that looks like this:

<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>
<allinfo>
  <filepath>/mnt/sdcard/Audio_Recorder/</filepath>
  <filename>newxml35500.3gp</filename>
  <annotation>
    <file>newxml35500.3gp</file>
    <timestamp>0:05</timestamp>
    <note>uuuouou</note>
  </annotation>
  <filepath>/mnt/sdcard/Audio_Recorder/</filepath>
  <filename>newxml35501.3gp</filename>
  <annotation>
    <file>newxml35501.3gp</file>
    <timestamp>0:04</timestamp>
    <note>tyty</note>
  </annotation>
</allinfo>

I am trying to add an addition annotation to the XML after it has been created so the XML has an additional:

<annotation>
  <file>blah</file>
  <timestamp>0:00</timestamp>
  <note>this is a note</note>
</annotation>

What is the best way to find the root and then write a few lines to the XML in Java? I have seen DocumentBuilderFactory get some use from others but I am not sure how to implement it correctly. Any help would be much appreciated.

Answer 1

This works:

    final DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    final Document document = documentBuilder.parse(new ByteArrayInputStream("<foo><bar/></foo>".getBytes("UTF-8")));
    final Element documentElement = document.getDocumentElement();
    documentElement.appendChild(document.createElement("baz"));

You will get:

<foo><bar/><baz/></foo>