Java SAX Parser raises UnknownHostException

Question

The XML file I want to parse starts with :

<!DOCTYPE plist PUBLIC "-//...//DTD PLIST 1.0//EN" "http://www.....dtd">

So when I start the SAX praser, it tries to access this DTD online, and I get a java.net.UnknownHostException.

1. I cannot modify the XML file before feeding it to the SAX parser
2. I have to run even with no internet connection

How can I change the SAX Parser behaviour so that it does not try to load the DTD ? Thanks.

javax.xml.parsers.SAXParserFactory factory = javax.xml.parsers.SAXParserFactory.newInstance();
factory.setValidating(false);

javax.xml.parsers.SAXParser parser = factory.newSAXParser();
parser.parse(xmlFile, handler);

Answer 1

Ok, turns out the parse() method overrides any previously set entity resolvers with the handler passed in to the parse method. The following code should work:

javax.xml.parsers.SAXParserFactory factory = javax.xml.parsers.SAXParserFactory.newInstance();
factory.setValidating(false);
javax.xml.parsers.SAXParser parser = factory.newSAXParser();
parser.parse(new java.io.File("x.xml"), new org.xml.sax.helpers.DefaultHandler(){
        public org.xml.sax.InputSource resolveEntity(String publicId, String systemId)
                throws org.xml.sax.SAXException, java.io.IOException {
            System.out.println("Ignoring: " + publicId + ", " + systemId);
            return new org.xml.sax.InputSource(new java.io.StringReader(""));
        }
    }); 

Answer 2

Use XMLReader instead of SAXParser.

    XMLReader reader =XMLReaderFactory.createXMLReader();
 reader.setEntityResolver(new DummyEntityResolver());
    reader.setContentHandler(handler);
 reader.parse(inputSource);

It should also work with SAXParser, but for some reasons it doesn't.