Java tutorial
//package com.java2s; /* * Copyright 2017 Andrey Timofeev. * * 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 java.io.PrintWriter; import java.io.StringWriter; import javax.xml.transform.OutputKeys; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Element; import org.w3c.dom.Node; public class Main { public static void setIntegerAttr(Element element, String name, Integer val) { if (val != null) { element.setAttribute(name, val.toString()); } } public static String toString(Node element) throws Exception { if (element == null) { return "null"; } Source source = new DOMSource(element); StringWriter stringWriter = new StringWriter(); try (PrintWriter printWriter = new PrintWriter(stringWriter)) { Result result = new StreamResult(printWriter); Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); transformer.transform(source, result); } return stringWriter.toString(); } }