Question

This is a followup question of How to encode characters from Oracle to Xml?

In my environment here I use Java to serialize the result set to xml. I have no access to the output stream itself, only to a org.xml.sax.ContentHandler.

When I try to output characters in a CDATA Section:

It happens basically like this:

xmlHandler.startElement(uri, lname, 'column', attributes); String chars = '<![CDATA['+rs.getString(i)+']]>'; xmlHandler.characters(chars.toCharArray(), 0, chars.length()); xmlHandler.endElement(uri, lname, 'column'); 

I get this:

<column>&lt;![CDATA[33665]]&gt;</column> 

But I want this:

<column><![CDATA[33665]]></column> 

So how can I output a CDATA section with a Sax ContentHandler?

Answer 1

It is getting escaped because the handler.characters function is designed to escape and the <![CDATA[ part isn’t considered part of the value.

You need to use the newly exposed methods in DefaultHandler2 or use the TransformerHandler approach where you can set the output key CDATA_SECTION_ELEMENTS, which takes a whitespace delimited list of tag names that should output sub text sections enclosed in CDATA.

StreamResult streamResult = new StreamResult(out); SAXTransformerFactory tf = (SAXTransformerFactory) SAXTransformerFactory.newInstance(); TransformerHandler hd = tf.newTransformerHandler(); Transformer serializer = hd.getTransformer(); serializer.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS, 'column'); hd.setResult(streamResult); hd.startDocument(); hd.startElement('','','column',atts); hd.characters(asdf,0, asdf.length()); hd.endElement('','','column'); hd.endDocument();