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Answer 1

A:

You need to be using javax.xml.parsers.DocumentBuilderFactory

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(false);
DocumentBuilder builder = factory.newDocumentBuilder();
InputSource src = new InputSource("http://de.wikipedia.org/wiki/Right_Livelihood_Award")
Document xmlDocument = builder.parse(src.getByteStream());
DOMSource source = new DOMSource(xmlDocument);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer(xsltSource);
transformer.transform(source, new StreamResult(System.out));

Chris 2009-10-15 16:06:29

Thanks for the answer, but this code actually throws the same exception:`java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd`You have to change the `src.getByteStream()` to `src` in line 5 to get it working at all but there is still the same exception.

theomega 2009-10-16 14:23:29

Answer 2

+2 A:

I recently had this issue while unmarshalling XML using JAXB. The answer was to create a SAXSource from an XmlReader and InputSource, then pass that to the JAXB UnMarshaller's unmarshal() method. To avoid loading the external DTD, I set a custom EntityResolver on the XmlReader.

SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XmlReader xmlr = sp.getXMLReader();
xmlr.setEntityResolver(new EntityResolver() {
    public InputSource resolveEntity(String pid, String sid) throws SAXException {
     if (sid.equals("your remote dtd url here"))
      return new InputSource(new StringReader("actual contents of remote dtd"));
     throw new SAXException("unable to resolve remote entity, sid = " + sid);
    } } );
SAXSource ss = new SAXSource(xmlr, myInputSource);

As written, this custom entity resolver will throw an exception if it's ever asked to resolve an entity OTHER than the one you want it to resolve. If you just want it to go ahead and load the remote entity, remove the "throws" line.

2009-10-15 16:59:48

Answer 3

A:

Try setting a feature in your DocumentBuilderFactory:

URL url = new URL(urlString);
InputStream is = url.openStream();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
DocumentBuilder db;
db = dbf.newDocumentBuilder();
Document result = db.parse(is);

Right now I'm experiencing the same problems inside XSLT(2) when calling the document function to analyse external XHTML-pages.

Kai Woska 2009-11-11 10:09:44

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Java, xml, XSLT: Prevent DTD-Validation

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