Servlet-based Web service with Axis

[Galbreath, Mark A]

So far, browsing to http://localhost:8080/axis/services/EchoHeaders returns

EchoHeaders

Hi there, this is an AXIS service!

Perhaps there will be a form for invoking the service here... 


source:
<h1>EchoHeaders</h1>
<p>Hi there, this is an AXIS service!</p>
<i>Perhaps there will be a form for invoking the service here...</i>


So I assume somebody in the Axis instigator :-) has thought of returning
HTML to the client from a servlet.  But I still cannot get header data from
(though I'm sure I've got it all screwed up):

public class EchoHeaders extends HttpServlet {
        private String endpoint =
"http://localhost:8080/axis/services/EchoHeaders";;
        private String ret = "";
        private Service service = null;
        private Call call = null;

        public void doGet( HttpServletRequest req, HttpServletResponse res )
throws ServletException, IOException  {
                doPost( req, res );
        }


        public void doPost( HttpServletRequest req, HttpServletResponse res
) throws ServletException, IOException {
                res.setContentType( "text/html" );
                Writer out = res.getWriter();

                try {
                        service = new Service();
                        call = ( Call ) service.createCall();
                        call.setTargetEndpointAddress( new URL( endpoint ));
                        call.setOperationName( new QName(
"http://soapinterop.org/";, "echoHeaders" ));
                        call.invoke( new Object[] { "list" });

                } catch( ServiceException e ) {
                        e.printStackTrace();
                }

                if( !req.getParameter( "list" ).equals( "" ) ) {
                        Enumeration headers = req.getHeaderNames();
                        List list = new ArrayList();

                        while( headers.hasMoreElements() ) {
                                String h = ( String ) headers.nextElement();
                                String header = h + ":" + req.getHeader( h
);
                                list.add( header );
                        }

                        String[] results = new String[ list.size() ];

                        for( int i = 0; i < list.size(); i++ ) {
                                out.write(( String ) list.get( i ));
                        }
                }

                if( !req.getParameter( "whoami" ).equals( "" ) ) {
                        String remote = req.getRemoteHost();
                        out.write( "\n\nI am " + remote );

                }

                if( !req.getParameter( "echo" ).equals( "" ) ) {
                        String echo = req.getParameter( "echo" );
                        out.write( "\n\n" + echo );

                }
        }
}