insert child node in xml adding and setting value

[Roshan Chacko Techanath]

how do i generate(insert and append a node to) an xml using dom parser.
I want the xml to be physically visible and existing on the harddisk. Presently I am using the method
Node strnode=null;
strnode.setNodeValue("xyz");
It does create a node when i print it from the class. But it dosnt edit the physical file.The file remains as it is. I would like the file also to be edited so that I can use it for future data retrieval.
Can someone help meeeeeeee???

[ December 13, 2004: Message edited by: Roshan Chacko Techanath ]

[Jeroen Wenting]

This uses Xerces to write the file, not sure if it's even possible with the built-in functionality of the JDK:

File f = new File(path, filename);
// if the file already exists and is readonly, terminate while logging an error
if (f.exists() && !f.canWrite())
{
logger.log(Level.SEVERE, "File " + f.getName() + " is readonly");
return;
}
// set up output formatting for the xml to be generated
OutputFormat format = new OutputFormat((Document)usermenu);
format.setIndenting(true);
format.setLineWidth(0);
format.setPreserveSpace(true);
try
{
// create a new file if none exists
if (!f.exists())
f.createNewFile();
XMLSerializer serializer =
new XMLSerializer(new FileWriter(f), format);
serializer.asDOMSerializer();
// write out the xml to the file
serializer.serialize(doc);
}
catch (IOException e)
{
logger.log(Level.SEVERE, e.getMessage());
}

doc is an XML Document.
logger is a standard Logger

[David O'Meara]

This forum is for Servlet questions. I'll move this to the XML forum for you.

Dave