How to ignore inline DTD when parsing XML file in Java

问题

I have a problem reading a XML file with DTD declaration inside (external declaration is solved). I'm using SAX method (javax.xml.parsers.SAXParser). When there is no DTD definition parsing looks like for example StartEement-Characters-StartElement-Characters-EndElement-Characters...... So there is characters method called immediately after Start or End element and thats how I need it to be. When DTD is in file parsing schema changes to for example StartElement-StartElement-StartElement-Characters-EndEement-EndEement-EndEement. And I need Characters method after every element. So I'm asking is there any way to prevent change of parsing schema?

My code:

SAXParserFactory factory = SAXParserFactory.newInstance();   
factory.setValidating(false);  

SAXParser parser = factory.newSAXParser();
XMLReader reader = parser.getXMLReader(); 

reader.setFeature("http://xml.org/sax/features/validation", false);
reader.setFeature("http://apache.org/xml/features/nonvalidating/load-dtd-grammar", false);
reader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
reader.setFeature("http://xml.org/sax/features/external-general-entities", false);
reader.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
reader.setFeature("http://xml.org/sax/features/use-entity-resolver2", false);   
reader.setFeature("http://apache.org/xml/features/validation/unparsed-entity-checking", false);
reader.setFeature("http://xml.org/sax/features/resolve-dtd-uris", false);
reader.setFeature("http://apache.org/xml/features/validation/dynamic", false);
reader.setFeature("http://apache.org/xml/features/validation/schema/augment-psvi", false);

reader.parse(input);

There is XML file that I'm trying to parse link (its link on my dropbox).

回答1:

I suspect that the nodes that were previously being reported to the characters() callback are now being reported to the ignorableWhitespace() callback. The simplest solution might be to simply call characters() from ignorableWhitespace().

This is what the spec has to say about ignorableWhitespace():

Validating Parsers must use this method to report each chunk of whitespace in element content (see the W3C XML 1.0 recommendation, section 2.10): non-validating parsers may also use this method if they are capable of parsing and using content models.

In other words, if there is a DTD, and if you are not validating, then it's up to the parser whether it reports whitespace in element-only content models using the characters() callback or the ignorableWhitespace() callback.

来源：https://stackoverflow.com/questions/10257576/how-to-ignore-inline-dtd-when-parsing-xml-file-in-java

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dtd

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