How to add XSLT processing tag?

Question

Hello,
I am using the following codes to generate xml with xslt processing tags.
However it does not working. That is, it does not add the xslt processing
tag into xml outputs. I am using 1.6.x. I must be doing something wrong?
Document doc = db.newDocument();
Element root = doc.createElement("myroot");
doc.appendChild(root);
ProcessingInstruction pi =
     doc.createProcessingInstruction("xml-stylesheet",
     "type =\"text/xsl\" href=\""+xslt+"\"");
doc.insertBefore(pi, root);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
OutputFormat format = new OutputFormat(doc);
XMLSerializer serial = new XMLSerializer(pw, format);
serial.asDOMSerializer();
serial.serialize(doc.getDocumentElement());
pw.flush();

Answer 1

Instead of adding processing instruction directly inside DOM object, add the processing instruction while serializing XML like this
Document doc = db.newDocument();
Element root = doc.createElement("myroot");
doc.appendChild(root);
//ProcessingInstruction pi = doc.createProcessingInstruction("xml-stylesheet",
//     "type =\"text/xsl\" href=\""+xslt+"\"");
//doc.insertBefore(pi, root);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
OutputFormat format = new OutputFormat(doc);
XMLSerializer serial = new XMLSerializer(pw, format);
serial.asContentHandler().processingInstruction("xml-stylesheet","type=\"text/xsl\" href=\"users.xsl\"");
serial.asDOMSerializer();
serial.serialize(doc.getDocumentElement());
pw.flush();or use an alternate serializer like this one (coming from [http://exampledepot.com/]
    // This method writes a DOM document to a file
    public static void writeXmlFile(Document doc, String filename) {
        try {
            // Prepare the DOM document for writing
            Source source = new DOMSource(doc);
            // Prepare the output file
//            File file = new File(filename);
              StringWriter sw = new StringWriter();
            Result result = new StreamResult(System.out);
            // Write the DOM document to the file
            Transformer xformer = TransformerFactory.newInstance().newTransformer();
            xformer.transform(source, result);
        } catch (TransformerConfigurationException e) {
        } catch (TransformerException e) {
    }