Failures on JSP Pgaes 2003-06-23 - By Schwartz, Rechell R, ALABS
I have tried running numerous Xalan examples involving SAX ContenHandlers and
Transformations from JSP pages. In all cases I get the same result: no
exceptions are throws, but the output that was supposed to be sent from the
Content Handler is never sent to the brwoser. Following is sample code that
failed. Any insights would be greatly appreciated, as I am at my wits end. Also
, I am not subscribed to the email list. Please tell me how to subscribe.
Thanks,
Rechell Schwartz
TransformerFactory tfactory = TransformerFactory.newInstance();
SAXTransformerFactory stfactory = ((SAXTransformerFactory) tfactory);
TransformerHandler handler = stfactory.newTransformerHandler(new
StreamSource(stylesheet1));
// Set the result handling to be a serialization to System.out.
Result result = new SAXResult(new MyHandler(out));
handler.setResult(result);
XMLReader reader=null;
// Use JAXP1.1 ( if possible )
try {
javax.xml.parsers.SAXParserFactory factory javax.xml.parsers
.SAXParserFactory.newInstance();
factory.setNamespaceAware( true );
javax.xml.parsers.SAXParser jaxpParser factory.newSAXParser();
reader=jaxpParser.getXMLReader();
} catch( javax.xml.parsers.ParserConfigurationException ex ) {
throw new org.xml.sax.SAXException( ex );
} catch( javax.xml.parsers.FactoryConfigurationError ex1 ) {
throw new org.xml.sax.SAXException( ex1.toString() );
} catch( NoSuchMethodError ex2 ) {
}
if( reader==null ) reader = XMLReaderFactory.createXMLReader();
reader.setContentHandler(handler);
// It's a good idea for the parser to send lexical events.
// The TransformerHandler is also a LexicalHandler.
reader.setProperty("http://xml.org/sax/properties/lexical-handler",
handler);
// Parse the source XML, and send the parse events to the
TransformerHandler.
reader.parse(new InputSource(new StringReader(hand.detailresult)));
My Content Handler looks as follows:
public class MyHandler extends DefaultHandler {
private Writer out;
public MyHandler(JspWriter out) {this.out = out;}
public void characters(char[] text, int start, int length) throws SAXException
{
try
{ out.write(text, start, length);
out.flush();
} catch (IOException e) {
throw new SAXException(e);
}
}
}
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