从Node实例获取完整的xml文本

您将使用DOMSource（而不是StreamSource），并在构造函数中传递您的节点。

然后，您可以将节点转换为字符串。

快速样本：

public class NodeToString {    public static void main(String[] args) throws TransformerException, ParserConfigurationException, SAXException, IOException {        // just to get access to a Node        String fakeXml = "<!-- document comment -->n    <aaa>nn<bbb/>    n<ccc/></aaa>";        documentBuilder docBuilder = documentBuilderFactory.newInstance().newdocumentBuilder();        document doc = docBuilder.parse(new InputSource(new StringReader(fakeXml)));        Node node = doc.getdocumentElement();        // test the method        System.out.println(node2String(node));    }    static String node2String(Node node) throws TransformerFactoryConfigurationError, TransformerException {        // you may prefer to use single instances of Transformer, and        // StringWriter rather than create each time. That would be up to your        // judgement and whether your app is single threaded etc        StreamResult xmlOutput = new StreamResult(new StringWriter());        Transformer transformer = TransformerFactory.newInstance().newTransformer();        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");        transformer.transform(new DOMSource(node), xmlOutput);        return xmlOutput.getWriter().toString();    }}