将dom4j docment转换为W3c文档

Question

我需要将带有dom4j的xml构建转换为w3c文档,并且不知道它是如何做的...

Answer 1

查看DOMWriter.这对我有用:

import org.dom4j.DocumentHelper;    
import org.dom4j.io.DOMWriter;

org.dom4j.Document dom4jDoc = DocumentHelper.createDocument();    
org.w3c.dom.Document w3cDoc = new DOMWriter().write(dom4jDoc)

Answer 2

我假设你想从：

org.dom4j.Document

到：

org.w3c.dom.Document

从dom4j 快速入门指南：

Document document = ...;
String text = document.asXML();

从字符串到文档的JavaRanch 示例：

public static Document stringToDom(String xmlSource) 
        throws SAXException, ParserConfigurationException, IOException {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    return builder.parse(new InputSource(new StringReader(xmlSource)));
}

结合 2，你应该有你需要的。

Answer 3

如果您有大型文档,则可能需要避免出于性能原因将文档序列化为文本.在这种情况下,最好直接使用SAX事件进行转换:

private static final TransformerFactory transformerFactory =
                                           TransformerFactory.newInstance();

public static org.w3c.dom.Document toW3c(org.dom4j.Document dom4jdoc)
         throws TransformerException {

    SAXSource source = new DocumentSource(dom4jdoc);
    DOMResult result = new DOMResult(); 

    Transformer transformer = transformerFactory.newTransformer(); 

    transformer.transform(source, result);
    return (org.w3c.dom.Document) result.getNode();
}