XMLPullParser仅返回一个元素

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import java.io.IOException;
import java.io.StringReader;

public class XmlParserExample {
    public static void main(String[] args) {
        String xml = "<root><element1>Text1</element1><element2>Text2</element2></root>";
        try {
            XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
            XmlPullParser parser = factory.newPullParser();
            parser.setInput(new StringReader(xml));

            int eventType = parser.getEventType();
            while (eventType != XmlPullParser.END_DOCUMENT) {
                if (eventType == XmlPullParser.START_TAG) {
                    System.out.println("Start tag: " + parser.getName());
                } else if (eventType == XmlPullParser.TEXT) {
                    System.out.println("Text: " + parser.getText());
                } else if (eventType == XmlPullParser.END_TAG) {
                    System.out.println("End tag: " + parser.getName());
                }
                eventType = parser.next();
            }
        } catch (XmlPullParserException | IOException e) {
            e.printStackTrace();
        }
    }
}