Here you can find the source of domToString(Document document)
public static StringBuffer domToString(Document document)
//package com.java2s; /* /*from ww w. java 2 s . co m*/ * 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 java.io.File; import java.io.StringWriter; import javax.xml.transform.OutputKeys; 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 javax.xml.transform.stream.StreamSource; import org.w3c.dom.Document; public class Main { public static StringBuffer domToString(Document document) { if (document == null) { return new StringBuffer(); } return transformToString(new DOMSource(document), null); } public static StringBuffer transformToString(Source xmlSource, Source xslSource) { StringWriter writer = new StringWriter(); Transformer transformer; try { if (xslSource == null) { transformer = TransformerFactory.newInstance().newTransformer(); } else { transformer = TransformerFactory.newInstance().newTransformer(xslSource); } transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); transformer.transform(xmlSource, new StreamResult(writer)); return writer.getBuffer(); } catch (Exception e) { e.printStackTrace(); return writer.getBuffer(); } finally { try { writer.close(); } catch (Exception e) { e.printStackTrace(); } } } public static StringBuffer transformToString(String xmlFileName, String xslFileName) { return transformToString(new StreamSource(new File(xmlFileName)), new StreamSource(new File(xslFileName))); } public static StringBuffer transformToString(Document document, String xslFileName) { return transformToString(new DOMSource(document), new StreamSource(new File(xslFileName))); } }