DOM Util: get Element Text : DOM Element « XML « Java






  1. Java
  2. XML
  3. DOM Element

DOM Util: get Element Text

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

public class Main {

  public static String getChildText(Element parent, String childName) {
    NodeList list = parent.getElementsByTagName(childName);
    if (list.getLength() > 1) {
      throw new IllegalStateException("Multiple child elements with name " + childName);
    } else if (list.getLength() == 0) {
      return null;
    }
    Element child = (Element) list.item(0);
    return getText(child);
  }

  public static String getText(Element element) {
    StringBuffer buf = new StringBuffer();
    NodeList list = element.getChildNodes();
    boolean found = false;
    for (int i = 0; i < list.getLength(); i++) {
      Node node = list.item(i);
      if (node.getNodeType() == Node.TEXT_NODE) {
        buf.append(node.getNodeValue());
        found = true;
      }
    }
    return found ? buf.toString() : null;
  }
}








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