Java 7 for Absolute Beginners

CHAPTER 9 ■ WRITING AND READING XML

import org.xml.sax.helpers.DefaultHandler;

public class XMLToConsoleHandler extends DefaultHandler {

// The characters method handles the actual content of an element @Override

public void characters(char[] content, int start, int length) throws SAXException {

// Describe the content in the console System.out.println("Found content: " + new

String(content, start, length)); }

// The endDocument method lets us do something

// when the parser reaches the end of the document @Override

public void endDocument() throws SAXException {

// Announce in the console that we found the end of the document

System.out.println("Found the end of the document"); }

// The endElement method lets us do something

// when the parser reaches the end of an element @Override

public void endElement(String arg0, String localName, String qName)

throws SAXException {

// Announce in the console that we found the end of an element

System.out.println("Found the end of an element named \"" + qName + "\"");

}

// The startDocument lets us do something

// when we find the top of the document @Override

public void startDocument() throws SAXException {

// Announce in the console that we found the beginning of the document

System.out.println("Found the start of the document");

}

// The startElement method lets us do something

// when we reach the beginning of an element @Override

public void startElement(String uri, String localName, String qName,

Attributes attributes) throws SAXException {

// Create a StringBuilder object to contain our description of this element

StringBuilder sb = new StringBuilder();

// Add the name of the element sb.append("Found the start of an element named \"" +

qName + "\"");

// See if the element has any attributes if (attributes != null &&

attributes.getLength() > 0) {

sb.append(" with attributes named ");

// If we do find attributes, describe each one for (int i = 0; i <

attributes.getLength(); i++) {

String attributeName = attributes.getLocalName(i);

String attributeValue = attributes.getValue(i);

sb.append("\"" + attributeName + "\"");

sb.append(" (value = ");

sb.append("\"" + attributeValue + "\"");

sb.append(")");