How can I save my XML

[FrankyDee]

Hi there,

I'm a bit of a newbie in Java so please, bare with me.

I have a piece of code that opens an existing XML, adds a node in the 1st element. So far so good. The thing is I didn't find out how to save my XML (I'm pretty sure I'm being dumb here but my boss wants it for yesterday , of course, so here I am).

Here is a sample code I used:

Code:

import java.io.IOException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import com.sun.org.apache.xerces.internal.parsers.DOMParser;

public class Test {
    private static String sXMLFilename = "C:\\temp\\test.XML";

    /**
     * @param args
     */
    public static void main(String[] args) {

	// Parse the file
	DOMParser parser = new DOMParser();
	System.out.println("Parsing: " + sXMLFilename);
	try {
	    parser.parse(sXMLFilename);
	} catch (SAXException e) {
	    e.printStackTrace();
	    return;
	} catch (IOException e) {
	    e.printStackTrace();
	    return;
	}

	// Get the doc
	System.out.println("\tOK\nGetting the Document object");
	Document m_doc = parser.getDocument();

	// Get the node
	System.out.println("\tOK\nGetting NODE_1");
	NodeList nodes = m_doc.getElementsByTagName("NODE_1");

	// Store it in case we need to create the DRAWbridge node
	// We assume it exists so no testing here (will be though)
	Element element = (Element) nodes.item(0);

	// Check the sub node exists
	nodes = m_doc.getElementsByTagName("NODE_2");
	if (nodes == null || nodes.getLength() == 0) {
	    System.out.println("\tCreating new element");
	    Element newEl = element.getOwnerDocument().createElement("NODE_2");

	    System.out.println("\tOK\nAdding to NODE_1");
	    element.appendChild(newEl);

	    // Now that my new node is insterted, how do I save the XML files ?
	    System.out.println("\tOK\nSaving XML");
	}
    }
}

And the XML

Code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE NODE_1>
<NODE_1 />

Thanx in advance for helping

Frank

[DonCash]

Hey,

Try this to write the file back out as .xml
Firstly add this bit of code just above the DOM parse.

Code:

Writer output = null;
output = new BufferedWriter(new FileWriter("docname.xml"));
String newline = System.getProperty("line.separator");

To write to the file you need to add the code below. I haven't had a chance to play with your example yet so you will need to experiment with the placement of this code to make it work correctly.

Code:

output.write("whatever text to be printed out");
output.write(newline);

And at the end of the code make sure you add:

Code:

output.close();

Otherwise nothing will be written to the file.

I hope this helps!