Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static void main(String[] args) throws Exception {
        DocumentBuilderFactory Factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = Factory.newDocumentBuilder();
        Document doc = builder.parse("myxml.xml");
        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();

        XPathExpression expr = xpath.compile("//" + "item1" + "/*");
        Object result = expr.evaluate(doc, XPathConstants.NODESET);
        NodeList nodes = (NodeList) result;
        System.out.println(nodes.getLength());
        for (int i = 0; i < nodes.getLength(); i++) {
            Element el = (Element) nodes.item(i);
            System.out.println("tag: " + el.getNodeName());
            if (el.getFirstChild().getNodeType() == Node.TEXT_NODE)
                System.out.println("inner value:" + el.getFirstChild().getNodeValue());

            NodeList children = el.getChildNodes();
            for (int k = 0; k < children.getLength(); k++) {
                Node child = children.item(k);
                if (child.getNodeType() != Node.TEXT_NODE) {
                    System.out.println("child tag: " + child.getNodeName());
                    if (child.getFirstChild().getNodeType() == Node.TEXT_NODE)
                        System.out.println("inner child value:" + child.getFirstChild().getNodeValue());
                }
            }
        }
    }
}