Java XML Element Value getElementValue(Element element)

Description

get Element Value

License

Apache License

Declaration

public static String getElementValue(Element element) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.ArrayList;
import java.util.List;

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

public class Main {
    public static String getElementValue(Element parent, String tagName) {
        Element element = getChildElement(parent, tagName);
        if (element != null) {
            NodeList nodes = element.getChildNodes();
            if ((nodes != null) && (nodes.getLength() > 0)) {
                for (int i = 0; i < nodes.getLength(); i++) {
                    Node node = nodes.item(i);
                    if ((node instanceof Text)) {
                        return ((Text) node).getData();
                    }//from   w ww  .j  ava 2 s  .c o  m
                }
            }
        }
        return null;
    }

    public static String getElementValue(Element element) {
        if (element != null) {
            NodeList nodes = element.getChildNodes();
            if ((nodes != null) && (nodes.getLength() > 0)) {
                for (int i = 0; i < nodes.getLength(); i++) {
                    Node node = nodes.item(i);
                    if ((node instanceof Text)) {
                        return ((Text) node).getData();
                    }
                }
            }
        }
        return null;
    }

    public static Element getChildElement(Element parent, String tagName) {
        List<Element> children = getChildElements(parent, tagName);
        if (children.isEmpty()) {
            return null;
        }
        return (Element) children.get(0);
    }

    public static List<Element> getChildElements(Element parent, String tagName) {
        NodeList nodes = parent.getElementsByTagName(tagName);
        List<Element> elements = new ArrayList();
        for (int i = 0; i < nodes.getLength(); i++) {
            Node node = nodes.item(i);
            if (((node instanceof Element)) && (node.getParentNode() == parent)) {
                elements.add((Element) node);
            }
        }
        return elements;
    }
}

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