Java tutorial
import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import org.xml.sax.SAXParseException; import org.xml.sax.helpers.DefaultHandler; public class Main { public static void main(String[] argv) throws Exception { SAXParserFactory factory = SAXParserFactory.newInstance(); factory.setValidating(true); SAXParser parser = factory.newSAXParser(); SaxHandler handler = new SaxHandler(); parser.parse("sample.xml", handler); } } class SaxHandler extends DefaultHandler { public InputSource resolveEntity(String publicId, String systemId) { if (systemId.equals("http://www.my-company.com/order-1.0.dtd")) { return new InputSource(getClass().getResourceAsStream("order.dtd")); } else { return null; } } public void startElement(String uri, String localName, String qName, Attributes attrs) throws SAXException { if (qName.equals("order")) { } } public void error(SAXParseException ex) throws SAXException { System.out.println("ERROR: [at " + ex.getLineNumber() + "] " + ex); } public void fatalError(SAXParseException ex) throws SAXException { System.out.println("FATAL_ERROR: [at " + ex.getLineNumber() + "] " + ex); } public void warning(SAXParseException ex) throws SAXException { System.out.println("WARNING: [at " + ex.getLineNumber() + "] " + ex); } }