Question

Need to save an XML file from Java

Asked by: fsyed

Dear fellow Java developers:

I have written some java code that creates an xml document, but I'm having trouble SAVING it on to my local pc as an xml file.  I thought it would be similar to writing a text file, but I am a bit off.  I have listed my code below, and I think I'm almost there, but not quite.  When I run my code, I get the following content within my document.xml file:

[#document: null]

Any help would be greatly appreciated.  Thanks to all who reply.

package com.javatest;
 
import java.io.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import org.w3c.dom.*;
 
public class CreateXMLDoc {
	
	PrintWriter updates;
	
	public static void main(String[] args) throws Exception {
		String root = "transmission";
		DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
        Document document = documentBuilder.newDocument();
		Element rootElement = document.createElement(root);
        document.appendChild(rootElement);
		
		
			String element = "message";
			
			String data = "text";
			Element em = document.createElement(element);
			em.appendChild(document.createTextNode(data));
			rootElement.appendChild(em);
		
		TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        DOMSource source = new DOMSource(document);
        StreamResult result =  new StreamResult(System.out);
        transformer.transform(source, result);
        
        CreateXMLDoc testCode = new CreateXMLDoc();
        testCode.fileWrite(document);
	}
        
        public void fileWrite(Document doc){
        
        try  
        {     
        	updates = new PrintWriter(new BufferedWriter(new FileWriter("c:\\document.xml")), true);
        }  
        catch(Exception e)
        {   e.printStackTrace();
             return;
        }
        updates.println(doc);
	}
 
}

                                  
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Asked On
2009-03-28 at 20:36:42ID24274642
Tags

Java

,

XML

Topics

JAXP & SAX (XML APIs)

,

New to Java Programming

,

Java Programming Language

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: objectsPosted on 2009-03-29 at 02:42:54ID: 24011944

 

by: basav_comPosted on 2009-03-29 at 10:49:54ID: 24013668

 

by: basav_comPosted on 2009-03-29 at 10:57:38ID: 24013709

I changed the following line in your code:
StreamResult result =  new StreamResult(new File("c:\\document.xml"));

And commented this call:
 //testCode.fileWrite(document);

Check the attached code:

import java.io.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import org.w3c.dom.*;
 
public class CreateXMLDoc {
        
        PrintWriter updates;
        
        public static void main(String[] args) throws Exception {
                String root = "transmission";
                DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
        Document document = documentBuilder.newDocument();
                Element rootElement = document.createElement(root);
        document.appendChild(rootElement);
                
                
                        String element = "message";
                        
                        String data = "text";
                        Element em = document.createElement(element);
                        em.appendChild(document.createTextNode(data));
                        rootElement.appendChild(em);
                
                TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        DOMSource source = new DOMSource(document);
        StreamResult result =  new StreamResult(new File("c:\\document.xml"));
        transformer.transform(source, result);
        
        CreateXMLDoc testCode = new CreateXMLDoc();
        //testCode.fileWrite(document);
        }
        
        public void fileWrite(Document doc){
        
        try  
        {     
                updates = new PrintWriter(new BufferedWriter(new FileWriter("c:\\document.xml")), true);
        }  
        catch(Exception e)
        {   e.printStackTrace();
             return;
        }
        updates.println(doc);
        }
 
}

                                              
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by: fsyedPosted on 2009-03-29 at 22:40:05ID: 31563970

Thanks so much for your responses, and your solutions.  I do appreciate it!

20120131-EE-VQP-002

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