get Value from Element by tag name - Java XML

Java examples for XML:XML Element Value

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Description

get Value from Element by tag name

Demo Code


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

public class Main{
    public static String getValue(Element node, String tagName) {
        String value = null;//from  ww w. j  ava2s .  c om

        do {
            if (node == null) {
                break;
            }

            Element e = XmlUtil.getChild(node, tagName);
            if (e == null) {
                break;
            }

            value = e.getTextContent();
        } while (false);

        return value;
    }
    public static Element getChild(Element node, String tagName) {
        Element element = null;

        do {
            if (node == null) {
                break;
            }

            NodeList childNodes = node.getChildNodes();
            for (int i = 0; i < childNodes.getLength(); i++) {
                Node child = childNodes.item(i);

                if (child.getNodeType() == Node.ELEMENT_NODE) {
                    if (child.getNodeName().equals(tagName)) {
                        element = (Element) child;
                        break;
                    }
                }
            }
        } while (false);

        return element;
    }
}

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