Issue with mapping XML to Java using SAX API

Question

I am using SAX API to Map XML Documents To Java. Is it possible to differentiate the elements based on the attribute rather than localname or element name in SAX API? because I am having the below xml structure. In SAX API we are processing the element values based on start/End Element name.
<?xml version="1.0" encoding="UTF-8"?>
<response>
<result name="response">
<doc>
<str name="art_id">192201910</str>
<str name="title">test</str>
<arr name="author">
<str>Darrell Dunn</str>
<str>William </str>
</arr>
<arr name="tax">
<str>113243335</str>
<str>233454666</str>
</arr>
</doc>
<doc>
<str name="art_id">192201911</str>
<str name="title">test2</str>
<arr name="author">
<str>Darrell Dunn1</str>
<str>William 1</str>
</arr>
</doc>
</result>
</response>
I want to map the elements based on attributes such as
classobj.art_id, classobj.title, classobj.tax[]. I have wriiten code below, but I am not getting the proper result.
import org.xml.sax.;
import org.xml.sax.helpers.;
import java.io.;
import java.util.;
import common.;
public class XmltoObjectHandler extends DefaultHandler{
/* Creates a new instance of XmltoObjectHandler */
public XmltoObjectHandler() {
// Local SolrDocument object to collect
// document XML data.
private XmlDocument doc = new XmlDocument();
// Local list of solr documents items...
private Vector xmlDocuments = new Vector();
// Local current solr document reference...
private XmlDocument currentSolrDoc;
// Buffer for collecting data from
// the "characters" SAX event.
private CharArrayWriter contents = new CharArrayWriter();
// Override methods of the DefaultHandler class
// to gain notification of SAX Events.
// See org.xml.sax.ContentHandler for all available events.
public void startElement( String namespaceURI,
String localName,
String qName,
Attributes attr ) throws SAXException {
if ( localName.equals( "doc" ) ) {
currentXmlDoc = new XmlDocument();
solrDocuments.addElement( currentSolrDoc );
if( localName.equals("str"){
for ( int i = 0; i < attr.getLength(); i++ ){
if("art_id".equals(attr.getValue(i))){
currentSolrDoc.art_id = contents.toString();
if("title".equals(attr.getValue(i))){
currentSolrDoc.title = contents.toString();
public void endElement( String namespaceURI,
String localName,
String qName ) throws SAXException {
public void characters( char[] ch, int start, int length )
throws SAXException {
contents.write( ch, start, length );
public Vector getxmlDocuments() {
return solrDocuments;
public static void main( String[] argv ){
System.out.println( "Example4:" );
try {
// Create SAX 2 parser...
XMLReader xr = XMLReaderFactory.createXMLReader();
// Set the ContentHandler...
XmltoObjectHandler ex4 = new XmltoObjectHandler();
xr.setContentHandler( ex4 );
// Parse the file...
xr.parse( new InputSource(new FileReader( "xmlfile.xml" )));
// Display all documents items...
XmlDocument i;
Vector items = ex4.getxmlDocument();
Enumeration e = items.elements();
while( e.hasMoreElements()){
i = (XmlDocument) e.nextElement();
System.out.println(i.art_id+"\n");
System.out.println(i.title+"\n");
}catch ( Exception e ) {
e.printStackTrace();
Can anybody help me how to process this type of xml. Is there any other way we can do this? I am trying for two days. It is a big deadlock for me. any help greatly appriciated. Thanks in advance.

Answer 1

I added my code inside code tags...
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import java.io.*;
import java.util.*;
import common.*;
public class XmltoObjectHandler extends DefaultHandler{
    /** Creates a new instance of XmltoObjectHandler */
    public XmltoObjectHandler() {
    // Local SolrDocument object to collect
    // document XML data.
    private XmlDocument doc = new XmlDocument();
    // Local list of solr documents items...
    private Vector xmlDocuments = new Vector();
    // Local current solr document reference...
    private XmlDocument currentSolrDoc;
    // Buffer for collecting data from
    // the "characters" SAX event.
    private CharArrayWriter contents = new CharArrayWriter();  
    // Override methods of the DefaultHandler class
    // to gain notification of SAX Events.
    // See org.xml.sax.ContentHandler for all available events.
    public void startElement( String namespaceURI,
            String localName,
            String qName,
            Attributes attr ) throws SAXException {
          if ( localName.equals( "doc" ) ) {
            currentXmlDoc = new XmlDocument();
            solrDocuments.addElement( currentSolrDoc );
          if( localName.equals("str"){
               for ( int i = 0; i < attr.getLength(); i++ ){               
                if("art_id".equals(attr.getValue(i))){
                         currentSolrDoc.art_id = contents.toString();
                    if("title".equals(attr.getValue(i))){
                         currentSolrDoc.title = contents.toString();
    public void endElement( String namespaceURI,
            String localName,
            String qName ) throws SAXException {      
    public void characters( char[] ch, int start, int length )
    throws SAXException {       
        contents.write( ch, start, length );       
    public Vector getxmlDocuments() {
        return solrDocuments;
    public static void main( String[] argv ){       
        System.out.println( "Example4:" );
        try {          
            // Create SAX 2 parser...
            XMLReader xr = XMLReaderFactory.createXMLReader();           
            // Set the ContentHandler...
            XmltoObjectHandler ex4 = new XmltoObjectHandler();
            xr.setContentHandler( ex4 );           
            // Parse the file...
            xr.parse( new InputSource(new FileReader( "xmlfile.xml" )));          
            // Display all documents items...
            XmlDocument i;
            Vector items = ex4.getxmlDocument();
            Enumeration e = items.elements();
            while( e.hasMoreElements()){
                i = (XmlDocument) e.nextElement();
                System.out.println(i.art_id+"\n");
                    System.out.println(i.title+"\n");
        }catch ( Exception e ) {
            e.printStackTrace();
}