How to SAVE a updated XML DOM Data to the file?

Question

Hi
I am able to load an XML file into a XML DOM object using JAVA (xerces). I have update the required data in the DOM.
But I am NOT able to save back the data to the physical file.
Will appreciate if you can help me ASAP.

Answer 1

Hi Krishar,
Check out the jaxp new release on java.sun.com. This api has classes and methods to help you do the same.
sample code:
     try
          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
          java.net.URL url = this.getClass().getResource(XML_FILE);
          java.io.File thsFile = new java.io.File(url.getFile());
          DocumentBuilder builder = factory.newDocumentBuilder();
          TransformerFactory tFactory = TransformerFactory.newInstance();
          Transformer transformer = tFactory.newTransformer();
          document = builder.parse(thsFile);
//You can do any modification to the document here
          DOMSource source = new DOMSource(document);
          StreamResult result = new StreamResult(thsFile);
          transformer.transform(source, result);
     catch (TransformerConfigurationException tce)
          System.out.println("\n** Transformer Factory error");
          System.out.println(" " + tce.getMessage());
          Throwable x = tce;
          if (tce.getException() != null)
               x = tce.getException();
          x.printStackTrace();
     catch (TransformerException te)
          System.out.println("\n** Transformation error in add:");
          System.out.println(" " + te.getMessage());
          Throwable x = te;
          if (te.getException() != null)
               x = te.getException();
          x.printStackTrace();
     catch (SAXException sxe)
          System.out.println("sax exp" + sxe.getMessage());
     catch (Exception ex)
          System.out.println("exc exp" + ex);
          ex.printStackTrace();
Hope this will help you XML_FILE is constant representing the path of the file. It should be in classpath. The program essentially parsing a xml file and creating dom document and then writing it back to the same file. you can do any modifications/write to other file etc...
Think this will suffice your requirement
bye
take care
Hi
I am able to load an XML file into a XML DOM object
using JAVA (xerces). I have update the required data
in the DOM.
But I am NOT able to save back the data to the
physical file.
Will appreciate if you can help me ASAP.