在下面的代码中：

private Document transformDoc(Source source) throws TransformerException, IOException {

TransformerFactory factory = TransformerFactory.newInstance();

Transformer transformer =

factory.newTransformer(new StreamSource(xsltResource.getInputStream()));

JDOMResult result = new JDOMResult();

transformer.transform(source, result);

return result.getDocument();

}

我得到这个异常：

java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd

我通过xsl转换的XHTML是：

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