import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.FactoryConfigurationError;

import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Attr;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.NamedNodeMap;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import java.io.IOException;

import org.xml.sax.SAXException;

public class DOMDemo{

public static void main(String[] args){

if(args.length!=1){

System.err.println("usage: java DOMDemo xmlfile");

return;

}

try{

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

// configure the document builder factory

dbf.setNamespaceAware(true);

DocumentBuilder db = dbf.newDocumentBuilder();

Document doc = db.parse(args[0]);

System.out.printf("version=%s, encoding=%s, standalone=%b%n",

doc.getXmlVersion(), doc.getXmlEncoding(), doc.getXmlStandalone());

if(doc.hasChildNodes()){

NodeList nl = doc.getChildNodes();

for(int i=0;i<nl.getLength();i++){

Node node = nl.item(i);

if(node.getNodeType() == Node.ELEMENT_NODE){

dumpElement((Element)node);

}

}

}

}catch(FactoryConfigurationError fce){

fce.printStackTrace();

}catch(IOException ioe){

ioe.printStackTrace();

}catch(ParserConfigurationException pce){

pce.printStackTrace();

}catch(SAXException se){

se.printStackTrace();

}

}

static void dumpElement(Element element){

System.out.printf("Element: nodename=%s, localname=%s, prefix=%s, namespaceUri=%s%n",

element.getNodeName(), element.getLocalName(), element.getPrefix(), element.getNamespaceURI());

NamedNodeMap nnm = element.getAttributes(); // dump attributes

if(nnm!=null){

for(int i=0;i<nnm.getLength();i++){

Node node = nnm.item(i);

Attr attr = (Attr)node;

System.out.printf(" Attribute: %s = %s%n", attr.getName(), attr.getValue());

}

}

if(element.hasChildNodes()){

NodeList nl = element.getChildNodes();

for(int i=0;i<nl.getLength();i++){

Node node = nl.item(i);

if(node instanceof Element){

dumpElement((Element)node);

}

}

}

}

}