Java tutorial
//package com.java2s; /* * Copyright 2017 Huawei Technologies Co., Ltd * * 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; public class Main { public static void mergeElement(Element from, Element to) { // attrs for (int idx = 0; idx < from.getAttributes().getLength(); idx++) { Node node = from.getAttributes().item(idx); to.getAttributes().setNamedItem(node.cloneNode(false)); } // children for (int idx = 0; idx < from.getChildNodes().getLength(); idx++) { Node node = from.getChildNodes().item(idx); if (!Element.class.isInstance(node)) { continue; } to.appendChild(node.cloneNode(true)); } } }