Java tutorial
//package com.java2s; /** * Copyright 2005-2016 Red Hat, Inc. * * Red Hat 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.Node; import org.w3c.dom.NodeList; public class Main { private static String mergeTextContent(final NodeList nodes) { StringBuilder buf = new StringBuilder(); for (int i = 0; i < nodes.getLength(); i++) { Node n = nodes.item(i); final String text; switch (n.getNodeType()) { case Node.COMMENT_NODE: case Node.PROCESSING_INSTRUCTION_NODE: // ignore comments when merging text = null; break; default: text = getTextContent(n); break; } if (text != null) { buf.append(text); } } return buf.toString(); } private static String getTextContent(final Node node) { switch (node.getNodeType()) { case Node.ELEMENT_NODE: case Node.ATTRIBUTE_NODE: case Node.ENTITY_NODE: case Node.ENTITY_REFERENCE_NODE: case Node.DOCUMENT_FRAGMENT_NODE: return mergeTextContent(node.getChildNodes()); case Node.TEXT_NODE: case Node.CDATA_SECTION_NODE: case Node.COMMENT_NODE: case Node.PROCESSING_INSTRUCTION_NODE: return node.getNodeValue(); case Node.DOCUMENT_NODE: case Node.DOCUMENT_TYPE_NODE: case Node.NOTATION_NODE: default: return null; } } }