Java - Read XML File - DOM Parser

File.xml

<?xml version="1.0" encoding="UTF-8"?>
<company>
   <staff>
      <firstname>prasanna</firstname>
      <lastname>sherekar</lastname>
      <nickname>pashyaa</nickname>
      <salary>100000</salary>
   </staff>
   <staff>
      <firstname>james</firstname>
      <lastname>anderson</lastname>
      <nickname>lolo</nickname>
      <salary>200000</salary>
   </staff>
</company>

<?xml version="1.0" encoding="UTF-8"?>

<staff>

<firstname>prasanna</firstname>

<lastname>sherekar</lastname>

<nickname>pashyaa</nickname>

</staff>

<staff>

<firstname>james</firstname>

<lastname>anderson</lastname>

</staff>

</company>

ReadXMLFile.java

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
import java.io.File;

public class ReadXMLFile {

    public static void main(String argv[]) {

        try {

            File fXmlFile = new File("c:\\file.xml");
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(fXmlFile);
            doc.getDocumentElement().normalize();

            System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
            NodeList nList = doc.getElementsByTagName("staff");
            System.out.println("-----------------------");

            for (int temp = 0; temp < nList.getLength(); temp++) {

                Node nNode = nList.item(temp);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {

                    Element eElement = (Element) nNode;

                    System.out.println("First Name : " + getTagValue("firstname", eElement));
                    System.out.println("Last Name : " + getTagValue("lastname", eElement));
                    System.out.println("Nick Name : " + getTagValue("nickname", eElement));
                    System.out.println("Salary : " + getTagValue("salary", eElement));

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

    private static String getTagValue(String sTag, Element eElement) {
        NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes();

        Node nValue = (Node) nlList.item(0);

        return nValue.getNodeValue();
    }

}

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.DocumentBuilder;

import org.w3c.dom.Document;

import org.w3c.dom.NodeList;

import org.w3c.dom.Node;

import org.w3c.dom.Element;

import java.io.File;

public class ReadXMLFile {

public static void main(String argv[]) {

try {

File fXmlFile = new File("c:\\file.xml");

DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();

DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

Document doc = dBuilder.parse(fXmlFile);

doc.getDocumentElement().normalize();

System.out.println("Root element :" + doc.getDocumentElement().getNodeName());

NodeList nList = doc.getElementsByTagName("staff");

System.out.println("-----------------------");

for (int temp = 0; temp < nList.getLength(); temp++) {

Node nNode = nList.item(temp);

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

Element eElement = (Element) nNode;

System.out.println("First Name : " + getTagValue("firstname", eElement));

System.out.println("Last Name : " + getTagValue("lastname", eElement));

System.out.println("Nick Name : " + getTagValue("nickname", eElement));

System.out.println("Salary : " + getTagValue("salary", eElement));

}

} catch (Exception e) {

e.printStackTrace();

}

private static String getTagValue(String sTag, Element eElement) {

NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes();

Node nValue = (Node) nlList.item(0);

return nValue.getNodeValue();

}

Output:

Root element :company
———————–
First Name : prasanna
Last Name : sherekar
Nick Name : pashyaa
Salary : 500000
First Name : james
Last Name : anderson
Nick Name : james
Salary : 200000

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