How to call a web service from forms 9i

Question

Hello all, I was trying to run the example on this website that shows how to call a webservice from forms, and I recieved an error. I am at the last step, where it tells me to create a button and add a when button pressed trigger. Here is the code I am using from the example:
DECLARE
jo ora_java.jobject;
rv ora_java.jobject;
ex ora_java.jobject;
BEGIN
jo := CurrencyExchangeServiceStub.new;
--This will get the exchange rate from US Dollars to UK Sterling.
rv := CurrencyExchangeServiceStub.getRate(jo,'USA','UK');
message (float_.floatValue(rv));
EXCEPTION
WHEN ORA_JAVA.JAVA_ERROR then
message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
WHEN ORA_JAVA.EXCEPTION_THROWN then
ex := ORA_JAVA.LAST_EXCEPTION;
message(Exception_.toString(ex));
END;
It gives me an error on"Exception_.tostring" component must be declared. Does anyone have any suggestions? I am trying to figure out how to call an external WS from a form. Thanks.

Answer 1

IN forms Builder under Import java classes
Change the Import Classes field to java.lang.Exception and press Import. This will create a PL/SQL package for the Exception Java class. While this is not essential, it does make error reporting easier. Now press Close to dismiss the dialog.