Java get Node Value

In this section, you will learn how to obtain the node value. Before any further processing, you need a XML file. For this we have create a employee.xml file. Now to read the 'employee.xml' file, we have used DocumentBuilderFactory to enable application to obtain a parser Then the DocumentBuilder parse and build the XML document. The Document class access the document's data.

builder.parse(file)- This method parse the content of 'employee.xml' file as an XML document an return the DOM object.
getDocumentElement()- This method allows direct access to the child node that is the root element.
getNodeName()- This method returns the node name.
doc.getElementsByTagName("employee")-This method returns the list of nodes of all the Elements with a given tag name.
getChildNodes()-This method provides all the children of this node.
getNodeValue()- This method returns the node value.

Here is the 'employee.xml' file

<?xml version="1.0" encoding="UTF-8"?>
<company>
<employee>
<firstname>Anusmita</firstname>
<lastname>Singh</lastname>
</employee>
</company>

Here is the code of GetNodeValue


import java.io.*;

import org.w3c.dom.*;

import javax.xml.parsers.*;



public class GetNodeValue {

    public static void main(String[] args) throws Exception {

        File file = new File("employee.xml");

        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

        DocumentBuilder db = dbf.newDocumentBuilder();

        Document doc = db.parse(file);

        new GetNodeValue().GettingText(doc);

    }

    public void GettingText(Document doc) {

       Element e = doc.getDocumentElement();

        NodeList nodeList = doc.getElementsByTagName("employee");

        for (int i = 0; i < nodeList.getLength(); i++) {

            Node node = nodeList.item(i);

            if (node.getNodeType() == Node.ELEMENT_NODE) {

                Element element = (Element) node;

                NodeList nodelist = element.getElementsByTagName("firstname");

                Element element1 = (Element) nodelist.item(0);

                NodeList fstNm = element1.getChildNodes();

                System.out.print("First Name : " + (fstNm.item(0)).getNodeValue());

               }

        }

    }

}

Output will be displayed as:

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