Re: Problem in DefaultHandler class's startElement() method

Pete Hendry 22 Oct 2004 11:43:39 -0000

Namespace processing is not turned on in your parser. You need to set the feature

"http://xml.org/sax/features/namespaces"

to true. You are describing the correct behaviour when this feature is off I believe.

Pete

Ranjith Kodikara wrote:

Hi,

I am writing a java program to parse an XML file using SAX. In that java class, I am overriding DefaultHandler class's startElement method. This is the code for that method...

   public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
    System.out.print("Start Element: ");
    System.out.println(localName);

   }

But the output is like this

Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:
Start Element:

Nothing is printed for localName variable.

But when I put qName instead of localName in the System.out.println(qName) it give this result:

Start Element: surveys
Start Element: response
Start Element: question
Start Element: question
Start Element: question
Start Element: question
Start Element: question
Start Element: response
Start Element: question
Start Element: question
Start Element: question
Start Element: question
Start Element: question
Start Element: response
Start Element: question
Start Element: question
Start Element: question
Start Element: question
Start Element: question

It has taken element names for the qName variable.

According to the lesson I am following, this result should come for the localName. But here it takes element names for the qName. Please explain.

The corresponding XML file is given below.

<?xml version="1.0"?>
<surveys>
<response username="bob">
   <question subject="appearance">A</question>
   <question subject="communication">B</question>
   <question subject="ship">A</question>
   <question subject="inside">D</question>
   <question subject="implant">B</question>
</response>
<response username="sue">
   <question subject="appearance">C</question>
   <question subject="communication">A</question>
   <question subject="ship">A</question>
   <question subject="inside">D</question>
   <question subject="implant">A</question>
</response>
<response username="carol">
   <question subject="appearance">A</question>
   <question subject="communication">C</question>
   <question subject="ship">A</question>
   <question subject="inside">D</question>
   <question subject="implant">C</question>
</response>
</surveys>

I will be Grateful for any help.

Best Regards,

Ranjith

Ranjith Kodikara Bsc(Hons), SCJP,SCWCD
Systems Engineer DMS Software Technologies
165, Dharmapala Mawatha,
Colombo 00700

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Re: Problem in DefaultHandler class's startElement() method

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