javax.xml

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1. XML Parsing with DOM

DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = builder.parse("file.xml");

2. XML Parsing with SAX

SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
MySAXHandler handler = new MySAXHandler();
parser.parse("file.xml", handler);

3. XML Parsing with StAX

XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader("file.xml");
while (reader.hasNext()) {
    int eventType = reader.next();
    // Process event types
}

4. XML Serialization with DOM

DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = builder.newDocument();
// Create XML structure
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.transform(new DOMSource(doc), new StreamResult("file.xml"));

5. XML Serialization with StAX

XMLOutputFactory factory = XMLOutputFactory.newInstance();
XMLStreamWriter writer = factory.createXMLStreamWriter(new FileOutputStream("file.xml"));
writer.writeStartDocument();
// Write XML content
writer.writeEndDocument();
writer.close();

6. XML Validation

SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = schemaFactory.newSchema(new File("schema.xsd"));
Validator validator = schema.newValidator();
validator.validate(new File("file.xml"));

7. XPath Evaluation

XPathFactory factory = XPathFactory.newInstance();
XPath xpath = factory.newXPath();
XPathExpression expr = xpath.compile("//element[@attribute='value']");
Object result = expr.evaluate(doc, XPathConstants.NODESET);

8. XSLT Transformation

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Templates templates = transformerFactory.newTemplates(new StreamSource("stylesheet.xsl"));
Transformer transformer = templates.newTransformer();
transformer.transform(new DOMSource(doc), new StreamResult("transformed.xml"));

9. XML Signature

XMLSignatureFactory factory = XMLSignatureFactory.getInstance("DOM");
XMLSignature signature = factory.newXMLSignature();
// Setup signature elements and sign document
signature.sign(doc);

10. XML Encryption

XMLEncryptionFactory factory = XMLEncryptionFactory.getInstance("DOM");
XMLEncryption encryption = factory.newXMLEncryption();
EncryptedData encryptedData = encryption.encrypt(documentElement);
// Add encrypted data to document

11. SOAP Message Processing

SOAPMessage message = SOAPFactory.newInstance().createMessage();
// Set SOAP body and headers
message.saveChanges();

12. SOAP Web Service Client

Service service = ServiceFactory.newInstance().createService(new URL("wsdl"), new QName("namespace", "serviceName"));
Port port = service.getPort(Port.class);
// Invoke SOAP operation

13. SOAP Web Service Server

Endpoint endpoint = Endpoint.publish("endpointUrl", new MyWebService());

14. XML Schema Generation

SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = factory.newSchema();
// Add complex types and elements to schema

15. XML Schema Validation

SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = factory.newSchema(new File("schema.xsd"));
Validator validator = schema.newValidator();
// Validate XML document against schema

16. JAXB Binding

JAXBContext jaxbContext = JAXBContext.newInstance(MyClass.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
MyClass myClass = (MyClass) unmarshaller.unmarshal(new File("file.xml"));

17. JAXB Marshalling

JAXBContext jaxbContext = JAXBContext.newInstance(MyClass.class);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.marshal(myClass, new File("file.xml"));

18. JAXP Transformer Factory

TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource("stylesheet.xsl"));
// Transform XML document

19. JAXP XPath Factory

XPathFactory factory = XPathFactory.newInstance();
XPath xpath = factory.newXPath();
// Evaluate XPath expressions on XML document

20. JAXP Validator

SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = factory.newSchema(new File("schema.xsd"));
Validator validator = schema.newValidator();
// Validate XML document against schema

21. JAXP Document Builder Factory

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
// Parse XML document and create DOM tree

22. JAXP SAX Parser Factory

SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
// Parse XML document using SAX parser

23. JAXP Document Object Model (DOM)

DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = builder.parse("file.xml");
// Access and manipulate DOM elements

24. JAXP Simple API for XML (SAX)

SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
MySAXHandler handler = new MySAXHandler();
parser.parse("file.xml", handler);

25. JAXP Streaming API for XML (StAX)

XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader("file.xml");
// Iterate over XML events

26. XML Bridge API

XMLBridge bridge = XMLBridge.get();
bridge.unmarshal(source, target);
// Convert XML to Java object or vice versa

27. DOM4J Library

Document doc = DocumentHelper.createDocument();
Element root = doc.addElement("root");
// Create and manipulate XML elements using DOM4J