I want to parse the XML file, and output the string object of XML representation.
I tried to convert Document object to String object, but it is unsuccessful. Anyone knows
what I miss?

Here's the output of this program, which is wrong:
[person: null]


import java.io.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;

/** transform Document object to XML string */
public class ParserTest
{
  public static void main(String[] args) throws ParserConfigurationException, SAXException
  {
try
{
String xmlFile = "mydoc.xml";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(new File(xmlFile));
Element root = doc.getDocumentElement();
String s = root.toString();
System.out.println(s);
}
catch(IOException e)
{ e.printStackTrace();
}
    }
}

//mydoc.xml
<?xml version = "1.0"?>
<person>
<name>Joe</name>
<age>20</age>
</person>

Matt,
Here is the method that converts the Document to String equivalent

import java.io.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;

//method to convert Document to String
public String getStringFromDocument(Document doc)
{
    try
    {
       DOMSource domSource = new DOMSource(doc);
       StringWriter writer = new StringWriter();
       StreamResult result = new StreamResult(writer);
       TransformerFactory tf = TransformerFactory.newInstance();
       Transformer transformer = tf.newTransformer();
       transformer.transform(domSource, result);
       return writer.toString();
    }
    catch(TransformerException ex)
    {
       ex.printStackTrace();
       return null;
    }
}

Hi Ravi Sri,

Thanks a ton for your smart code suggestion to Matt, this piece of code helped me to go home after a hectic java to xml convertion project.

Best regards
Nagesh
nageshbab@rediffmail.com

Hi,

 

It is good logic whatever you are using. made some chages to your code .now it is working fine. find the working code.

 

 

package com.test;

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class Sample {
 public static void main(String[] args)
   {
 try
 {
  
 String xmlFile = "src/com/test/Sample.xml";
 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 DocumentBuilder builder = factory.newDocumentBuilder();
 Document doc = builder.parse(new File(xmlFile));
 Element root = doc.getDocumentElement();
 String s = root.toString();
 System.out.println(s);
 }
 catch(Exception e)
 { e.printStackTrace();
 }
 
   }
 

}