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.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;

public class Main {

    private static final String CFG_FILE = "test.xml";
    private static final String XPATH_FOR_PRM_MaxThread = "/config/param[@id='MaxThread']/text()";

    public static void main(String[] args) throws Exception {
        DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
        docFactory.setNamespaceAware(true);
        DocumentBuilder builder;
        builder = docFactory.newDocumentBuilder();
        Document doc = builder.parse(CFG_FILE);
        XPathExpression expr = XPathFactory.newInstance().newXPath().compile(XPATH_FOR_PRM_MaxThread);
        Object result = expr.evaluate(doc, XPathConstants.NUMBER);
        if (result instanceof Double) {
            System.out.println(((Double) result).intValue());
        }

    }
}