JDOM w/ Apache Axis 2004-04-13 - By Jerry Jalenak
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Greetings All!
I'm fairly new to using JDOM to generate XML, so bear with me. I'm in the
processing of writing a web service using Apache Axis. As part of my
'learning' process, I've been able to have a dotNet client hit my web
service and retrieve a basic String, a basic JavaBean, and an Array object
from the JavaBean. I'm now trying to generate a XML document using JDOM,
and pass it back to the client. Here's my basic 'HelloWorld'
implementation:
package ws;
import org.jdom.Element  ;
/**
* @(protected) jjalenak
*
*/
public class HelloWorldImpl implements HelloWorld
{
/* (non-Javadoc)
* @(protected) ws.HelloWorld#hello()
*/
public Document hello() throws Exception
{
Document _d = new Document();
Element _e = new Element("root");
_e.setText("Hi There!");
_d.setRootElement(_e);
return _d;
}
/* (non-Javadoc)
* @(protected) ws.HelloWorld#goodbye()
*/
public Document goodbye() throws Exception
{
Document _d = new Document();
Element _e = new Element("root");
_e.setText("Good Bye!");
_d.setRootElement(_e);
return _d;
}
}
When I ran the WSDL2JAVA emitter, it created a 'Document' bean in my 'ws'
package, and removed the import for the org.jdom.Document The web service
deploys on Tomcat (5.0.18) without any problems. When I try to call the web
service from my test Java web app, I get the following exception:
exception is (500)Internal Server Error
AxisFault
faultCode: {http://xml.apache.org/axis/}HTTP
faultSubcode:
faultString: (500)Internal Server Error
faultActor:
faultNode:
faultDetail:
{}string: return code: 500
Digging into this, I found what I think is the 'true' problem :
java.io.IOException : No serializer found for class org.jdom.Element in
registry org.apache.axis.encoding.TypeMappingImpl@(protected) It appears that
although WSDL2JAVA converted the Document object to a proper bean, it didn't
do the Element object. I not quite sure where to go from here, so if anyone
has some guidance, I'd sure appreciate it. Better yet, if someone has a
working example of an Axis-based webservice using JDOM that they can share,
I'd also appreciate being able to get a look at it.
Thanks!
Jerry Jalenak
Development Manager, Web Publishing
LabOne, Inc.
10101 Renner Blvd.
Lenexa, KS 66219
(913) 577-1496
jerry.jalenak@(protected)
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