xpath

gistfile1.txt

import java.io.File;
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.NodeList;

public class XPathQueryExecutor {

    public static void main(String[] args) {
        if (args.length != 2) {
            System.out.println("Usage: java XPathQueryExecutor <XML file> <XPath expression>");
            return;
        }

        String xmlFilePath = args[0];
        String xpathExpression = args[1];

        try {
            // Load XML file into a Document
            File xmlFile = new File(xmlFilePath);
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse(xmlFile);

            // Create an XPath instance
            XPathFactory xPathFactory = XPathFactory.newInstance();
            XPath xPath = xPathFactory.newXPath();

            // Compile and evaluate the XPath expression
            XPathExpression expression = xPath.compile(xpathExpression);
            NodeList nodeList = (NodeList) expression.evaluate(document, XPathConstants.NODESET);

            // Print the results
            for (int i = 0; i < nodeList.getLength(); i++) {
                System.out.println(nodeList.item(i).getTextContent());
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}