xquery中有没有XMLStream阅读器？

import javax.xml.stream.*;
import javax.xml.stream.events.*;
import java.io.*;

public class XMLStreamExample {
    public static void main(String[] args) throws XMLStreamException, FileNotFoundException {
        XMLInputFactory factory = XMLInputFactory.newInstance();
        XMLEventReader eventReader = factory.createXMLEventReader(new FileReader("example.xml"));

        while (eventReader.hasNext()) {
            XMLEvent event = eventReader.nextEvent();

            if (event.isStartElement()) {
                StartElement startElement = event.asStartElement();
                System.out.println("Start Element: " + startElement.getName());
            }

            if (event.isEndElement()) {
                EndElement endElement = event.asEndElement();
                System.out.println("End Element: " + endElement.getName());
            }

            if (event.isCharacters()) {
                Characters characters = event.asCharacters();
                if (!characters.isWhiteSpace()) {
                    System.out.println("Characters: " + characters.getData());
                }
            }
        }
    }
}