Not able to validate the xml document against DTD using SAX

Question

Hi ,
i am not able to validate xml document against its DTD using SAX parser even after setting setValidating = true. even if the file is not correct according to DTD , it is not throwing any exception. what could be the reason.? please help..
kranthi
this is the code sample i used.
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(true);
     try {
factory.newSAXParser().parse(new File("sample.xml"), handler);
     } catch (SAXException e) {
     e.printStackTrace();                         System.exit(2);
     } catch (ParserConfigurationException e) {
e.printStackTrace();
}

Answer 1

Hi karthik
Thanks for your response
Actually iam a beginner in java coding hence struggling to come up with the things
I tried putting your code and onserver side i see it is returning 09:12:17,234 INFO [STDOUT] [root: null]
actually the same program i wrote in java
and the same method i was calling from the main
and it is working fine and the xml document is getting displayed one important thing to be noted here is that the factory.newDocumentBuilder().parse(new File(filename));is returing XmlDocument
and the printing takes place
but the in same method public static Document parseXMLFile(String filename, boolean b) in servlet
the line factory.newDocumentBuilder().parse(new File(filename)); is returning DeferredDocumentImpl
and this creating problem , had it returned XmlDocument
i would have printed the elements one one
but as it is returning deferredimpl
iam unable to print the elements
could you please tell me why factory.newDocumentBuilder().parse(new File(filename)); is returning DeferredDocumentImpl
in servlets but in plain java pogram it is returing XmlDocument
Thanks
Bhanu