Element retrieve by tag name

In this chapter you will learn:

How to get element from an XML document by tag name

Get element by tag name

getElementsByTagName accepts tag name as parameter and return a NodeList containing elements whose tag name is passed in parameter.

The following code gets tags by tag name employee.

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

The following code shows how to use getElementsByTagName to get element by tag name.

import java.io.StringReader;
//  j  a v  a2 s .co  m
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

public class Main {

  public static void main(String[] args) throws Exception {
    InputSource is = new InputSource();
    is.setCharacterStream(new StringReader(xmlRecords));
    
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    
    Document doc = db.parse(is);
    NodeList nodes = doc.getElementsByTagName("employee");
    for (int i = 0; i < nodes.getLength(); i++) {
      Element element = (Element) nodes.item(i);
    }
  }
  static String xmlRecords = 
      "<data>" +
      "  <employee>" +
      "    <name>Tom</name>"+ 
      "    <title>Manager</title>" +
      "  </employee>" +
      "  <employee>" +
      "    <name>Jerry</name>"+ 
      "    <title>Programmer</title>" +
      "  </employee>" +
      "</data>";
}