Java XML Child Element Text getChildTextByTagName(Element e, String tagName)

Description

get Child Text By Tag Name

License

Apache License

Declaration

public static String getChildTextByTagName(Element e, String tagName) 

Method Source Code

//package com.java2s;
/**/* w ww  . j  a va 2 s .  co  m*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

public class Main {
    public static String getChildTextByTagName(Element e, String tagName) {
        Element child = getChildByTagName(e, tagName);
        if (child != null) {
            return getText(child);
        }
        return null;
    }

    public static Element getChildByTagName(Element e, String name) {
        for (Node kid = e.getFirstChild(); kid != null; kid = kid.getNextSibling()) {
            if ((kid.getNodeType() == Node.ELEMENT_NODE) && (name.equals(kid.getNodeName()))) {
                return (Element) kid;
            }
        }
        return null;
    }

    public static String getText(Node e) {
        StringBuffer sb = new StringBuffer();
        getTextBuffer(e, sb);
        return sb.toString();
    }

    private static void getTextBuffer(Node e, StringBuffer sb) {
        for (Node kid = e.getFirstChild(); kid != null; kid = kid.getNextSibling()) {
            switch (kid.getNodeType()) {
            case Node.TEXT_NODE: {
                sb.append(kid.getNodeValue());
                break;
            }
            case Node.ELEMENT_NODE: {
                getTextBuffer(kid, sb);
                break;
            }
            case Node.ENTITY_REFERENCE_NODE: {
                getTextBuffer(kid, sb);
                break;
            }
            }
        }
    }
}

Related

1. getChildText(Node node)
2. getChildText(Node parent, String childName)
3. getChildTextAsBoolean(Element parent, String childName, boolean defValue)
4. getChildTextAsBooleanObj(Element parent, String childName, Boolean defValue)
5. getChildTextByName(Element parent, String name)
6. getChildTextContent(Element elemenet, String childElemenetName)
7. getChildTextContent(Element element, String childTagName)
8. getChildTextList(Element elem, String childTagName)
9. getChildTextNode(Element el)