Jaxp Parsing Examples

JaxpParsing.java

package test.xml;

import java.io.InputStream;

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;

public class JaxpParsing {

  public static void main(String[] args) {
    try {

      InputStream ins = JaxpParsing.class.getClassLoader().getResourceAsStream("staff_list .xml");
      DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
      DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
      // Document doc = dBuilder.parse(fXmlFile);
      Document doc = dBuilder.parse(ins);
      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();
  }
}

staff_list.xml

<?xml version="1.0"?>
<company>
    <staff>
        <firstname>yong</firstname>
        <lastname>mook kim</lastname>
        <nickname>mkyong</nickname>
        <salary>100000</salary>
    </staff>
    <staff>
        <firstname>low</firstname>
        <lastname>yin fong</lastname>
        <nickname>fong fong</nickname>
        <salary>200000</salary>
    </staff>
</company>