6

我在 java 中使用 DOM 创建了一个 XML 文档。我无法添加文档类型。我想要这样的文档类型。

<!DOCTYPE IndInfo PUBLIC "EDAFileSomething" "EDAFileSomething_2_0.dtd">

这是文档创建代码。

DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.newDocument();

这是变压器对象代码。

TransformerFactory transformerFactory = TransformerFactory.newInstance();
            Transformer transformer = null;
            try {
                transformer = transformerFactory.newTransformer();
            } catch (TransformerConfigurationException ex) {
                Logger.getLogger(Reader.class.getName()).log(Level.SEVERE, null, ex);
            }
            DOMSource source = new DOMSource(doc);
            try {

                StreamResult result = new StreamResult(System.out);
                transformer.transform(source, result);
            } catch (TransformerException ex) {
                Logger.getLogger(Reader.class.getName()).log(Level.SEVERE, null, ex);
            }

            System.out.println("File saved!");
4

2 回答 2

15

您可以使用 DOM 构造 doctype 并将 doctype 设置为输出属性。

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
DOMImplementation domImpl = document.getImplementation();
DocumentType doctype = domImpl.createDocumentType("doctype",
    "-//Oberon//YOUR PUBLIC DOCTYPE//EN",
    "YOURDTD.dtd");
transformer.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC, doctype.getPublicId());
transformer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM, doctype.getSystemId());
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(new File(database));
transformer.transform(source, result);
于 2014-05-15T20:54:01.717 回答
1

如果 DOMImplementation通过调用 上的getDOMImplementation()方法获得 的实例，DocumentBuilder则可以使用该createDocument方法创建Document具有指定文档类型的新的。

它还有一个createDocumentType创建DocumentType对象的方法

请参阅http://docs.oracle.com/javase/1.5.0/docs/api/org/w3c/dom/DOMImplementation.html和http://docs.oracle.com/javase/1.5.0/docs/ api/javax/xml/parsers/DocumentBuilder.html 了解更多信息。

于 2012-11-25T19:16:23.127 回答