Comments on: Making Xerces ignore a DTD

By: Glenn

Glenn — Mon, 23 Jan 2012 20:12:51 +0000

I should have added… if you want to validate, bundle the DTD in your JAR, in the same folder as your parsing utility class. That way, you know exactly where it is, and after all, it is a class resource in this context. Then have your utility class implement EntityResolver thus:

@Override
public InputSource resolveEntity(String publicId, String systemId) {
return new InputSource(MyUtilityClass.class.getResourceAsStream(“logger.dtd”));
}

And set the entity resolver of the parser to the instance of your utility class (eg, “this”).

By: Glenn

Glenn — Mon, 23 Jan 2012 19:34:46 +0000

Pass the parser an EntityResolver that returns an empty DTD:

final SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
saxParserFactory.setValidating(false);
final SAXParser saxParser = saxParserFactory.newSAXParser();
final XMLReader parser = saxParser.getXMLReader();

parser.setEntityResolver(new EntityResolver(){
	public InputSource resolveEntity(String publicId, String systemId) {
		return new InputSource(new ByteArrayInputStream(new byte[]{}));
	}
});

By: DenisH

DenisH — Thu, 01 Dec 2011 11:20:52 +0000

Hi smac, what exactly do you mean when you say “where did you add this”?

To make Xerces ignore the DTD, just after you’ve created the XMLReader (assigned to parser in my example above), you set the two features shown and then it ignores the DTD (but obviously this means that it won’t check to ensure that the XML conforms to it).

That’s all you have to do.

By: smac

smac — Wed, 30 Nov 2011 20:00:04 +0000

Where did you add this? Sorry, total newb question, but I’ve needed to do this for years, and I’ve no one to walk me through it.

By: Hoschi

Hoschi — Wed, 15 Sep 2010 08:57:56 +0000

Thx alot.
it was quite useful for me.
I searched the hell for a solution and this works quite fine,
But…are there any disadvantages which I’m getting with this solution?
XML validation still persists or is switched off as well?

By: Purrfect

Purrfect — Wed, 12 May 2010 17:38:45 +0000

You are a star, scholar and gentleman. I was at the point of doing some string manipulation to get rid of the frigging DOCTYPE !

By: NS

NS — Mon, 19 Apr 2010 16:53:06 +0000

Yeah, even I spent quite a lot of time wandering on different sites before I came across this. Works perfectly. Thanks.

By: sumit

sumit — Wed, 31 Mar 2010 16:22:59 +0000

awesome!

By: Mansi

Mansi — Wed, 20 Jan 2010 13:45:24 +0000

Hi…
thanx for ur reply ..i was struggling with this thing for the past two days … …thnx a ton

By: Tony

Tony — Thu, 14 Jan 2010 13:06:18 +0000

Hello forum & poster of this solution.
Been reading, trying various things and searching the web for two days before coming across this!

Thanks it worked a treat.
Java newbie.