Java XML Element Get Value getText(Element element)

Description

Gets the text data enclosed by the specified element.

License

Apache License

Parameter

Parameter	Description
element	the target element

Return

the text content of the element, or null if no text content is found under the element

Declaration

static public String getText(Element element) 

Method Source Code

//package com.java2s;
/*--------------------------------------------------------------------------
 *  Copyright 2004 Taro L. Saito//from   w  ww  .j a  v  a 2  s  .c  o  m
 *
 *  Licensed 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;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;

public class Main {
    /**
     * Gets the text data enclosed by the specified element. If xml data has
     * several separated text data, the returned text will be their
     * concatination. For example, in the following XML data,
     * {@link #getText(Element)} for the wiki element gives " Hello World! Nice
     * to meet you.".
     * 
     * <pre>
     * &lt;wiki&gt; 
     *   Hello World!
     *   &lt;author&gt;leo&lt;/author&gt;
     *   Nice to meet you.
     * &lt;wiki&gt;
     * </pre>
     * 
     * The result removes ignorable white spaces between tags.
     * 
     * @param element
     *            the target element
     * @return the text content of the element, or null if no text content is
     *         found under the element
     */
    static public String getText(Element element) {
        NodeList nodeList = element.getChildNodes();
        StringBuilder buf = new StringBuilder();
        int numTextNodes = 0;
        for (int i = 0; i < nodeList.getLength(); i++) {
            Node node = nodeList.item(i);
            if (node.getNodeType() == Node.TEXT_NODE) {
                if (!((Text) node).isElementContentWhitespace()) {
                    numTextNodes++;
                    buf.append(node.getNodeValue());
                }
            }
        }
        return numTextNodes > 0 ? buf.toString() : null;
    }
}

Related

1. getText(Element elem, String ifnull)
2. getText(Element elem, String name)
3. getText(Element element)
4. getText(Element element)
5. getText(Element element)
6. getText(Element element)
7. getText(Element element)
8. getText(Element element, String name)
9. getText(Element element, String tagName)