import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
public class DOMParser {
public static void main(String[] args) {
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse("file.xml");
document.getDocumentElement().normalize();
NodeList nodeList = document.getElementsByTagName("book");
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) node;
String title = element.getElementsByTagName("title").item(0).getTextContent();
String author = element.getElementsByTagName("author").item(0).getTextContent();
System.out.println("Title: " + title);
System.out.println("Author: " + author);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
public class SAXParserExample {
public static void main(String[] args) {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean isTitle = false;
boolean isAuthor = false;
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if (qName.equalsIgnoreCase("title")) {
isTitle = true;
}
if (qName.equalsIgnoreCase("author")) {
isAuthor = true;
}
}
public void endElement(String uri, String localName, String qName) throws SAXException {
if (qName.equalsIgnoreCase("book")) {
System.out.println();
}
}
public void characters(char[] ch, int start, int length) throws SAXException {
if (isTitle) {
System.out.println("Title: " + new String(ch, start, length));
isTitle = false;
}
if (isAuthor) {
System.out.println("Author: " + new String(ch, start, length));
isAuthor = false;
}
}
};
saxParser.parse("file.xml", handler);
} catch (Exception e) {
e.printStackTrace();
}
}
}
import java.io.File;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
public class JAXBExample {
public static void main(String[] args) {
try {
File file = new File("file.xml");
JAXBContext jaxbContext = JAXBContext.newInstance(Book.class);
Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
Book book = (Book) jaxbUnmarshaller.unmarshal(file);
System.out.println("Title: " + book.getTitle());
System.out.println("Author: " + book.getAuthor());
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
jaxbMarshaller.marshal(book, file);
} catch (JAXBException e) {
e.printStackTrace();
}
}
}
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlElement;
@XmlRootElement
public class Book {
private String title;
private String author;
public String getTitle() {
return title;
}
@XmlElement
public void setTitle(String title) {
this.title = title;
}
public String getAuthor() {
return author;
}
@XmlElement
public void setAuthor(String author) {
this.author = author;
}
}
