How do you include a DTD when generating an XML document

Question

Hi
I have just started to use the Java XML Pack to generate a XML document.
How do you put the dtd element
<!DOCTYPE Controller SYSTEM "controller.dtd">
in the generated document.
I am using the following piece of code
public void generate(...)
DocumentBuilder builder = factory.newDocumentBuilder();
document = builder.newDocument();
Element rootElement = createElement("Controller");
// Fill out the nodes etc
// Save the result
TransformerFactory tFactory =
TransformerFactory.newInstance();
Transformer transformer = Factory.newTransformer();
File f = new File("dummy.xml");
FileWriter fw = new FileWriter(f);
DOMSource d1 = new
DOMSource(rootElement,"controller.dtd");
StreamResult result = new StreamResult(fw);
transformer.transform(d1, result);
Thanks
Greg

Answer 1

Hello,
I had to go through quite some pain to get this done about a year ago,anyways,here is the solution.
all the import files are in jaxp1.1 bundle.
below is a test class code.
import org.apache.crimson.tree.XmlDocument;
import javax.xml.parsers.*;
import org.w3c.dom.*;
import java.io.*;
public class CreateDTDInXMLFile {
public CreateDTDInXMLFile() {
public static void main(String[] args) {
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.newDocument();
Element root = document.createElement("root");
Element name = document.createElement("name");
name.appendChild(document.createTextNode("Khalid"));
Element address = document.createElement("address");
address.appendChild(document.createTextNode("2022 11th Ave SW"));
root.appendChild(name);
root.appendChild(address);
document.appendChild(root);
((XmlDocument)document).write(System.out);
//the above will print the simple xml doc,now add the dtd
//suppose the dtd is [<!DOCTYPE root SYSTEM "address.dtd">]
((XmlDocument)document).setDoctype(null,"address.dtd",null);
//now print the xml doc again
System.out.println("\n");
((XmlDocument)document).write(System.out);
} catch(ParserConfigurationException pce) {
pce.printStackTrace();
return;
}catch (IOException ioe) {
ioe.printStackTrace();
This will take care of the agony..
Khalid