Java tutorial
//package com.java2s; /** * 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; import org.w3c.dom.NodeList; public class Main { public static String getChildContent(Element parent, String name, String missing, String empty) { Element child = getChild(parent, name); if (child == null) { return missing; } else { String content = (String) getContent(child); return (content != null) ? content : empty; } } public static Element getChild(Element parent, String name) { for (Node child = parent.getFirstChild(); child != null; child = child.getNextSibling()) { if (child instanceof Element && name.equals(child.getNodeName())) { return (Element) child; } } return null; } public static Object getContent(Element element) { NodeList nl = element.getChildNodes(); StringBuilder content = new StringBuilder(); for (int i = 0; i < nl.getLength(); i++) { Node node = nl.item(i); switch (node.getNodeType()) { case Node.ELEMENT_NODE: return node; case Node.CDATA_SECTION_NODE: case Node.TEXT_NODE: content.append(node.getNodeValue()); break; } } return content.toString().trim(); } }