Element: getElementsByTagName(String name) : Element « org.w3c.dom « Java by API

1. Java by API
2. org.w3c.dom
3. Element

Element: getElementsByTagName(String name)

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;

public class MainClass {

  public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setValidating(true);
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document doc = builder.parse("yourFile.xml");
    Element rootElement = doc.getDocumentElement();
    NodeList children = rootElement.getChildNodes();
    Node current = null;
    int count = children.getLength();
    for (int i = 0; i < count; i++) {
      current = children.item(i);
      if (current.getNodeType() == Node.ELEMENT_NODE) {
        Element element = (Element) current;
        if (element.getTagName().equalsIgnoreCase("tableOfContents")) {
          // Get the list of <tocEntry> items
          NodeList tocitems = element.getElementsByTagName("tocEntry");
          // Obtain a reference to the second one
          Node secondChild = tocitems.item(1);
          // Create a new <tocEntry> element
          Element newTOCItem = doc.createElement("tocEntry");
          // Create a new "Help" text node
          Text newText = doc.createTextNode("Help");
          // Make it a child of the new <tocEntry> element
          // <tocEntry>Help</tocEntry>
          newTOCItem.appendChild(newText);
          // Add the new <tocEntry> element to <tableOfContents>
          element.insertBefore(newTOCItem, secondChild);
        }
      }
    }

    System.out.println(doc.getDocumentElement());
  }

}

 

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