Can I use Pure JSP Code without any java beans for a web application

Can I use JSP Code without any java beans for web application.
I am working on a web application. It takes a userid and password
on the first page and checks the table for validity and then
it takes to a second page where it lists a set of stored procedures, when user clicks a stored procedure then it prompts
for the parameters, after in putting the parameters the user can
execute the stored procedure, the stored procedure gets executed on oracle in unix, after execution, the resulting data should
be able to download to the user machine.
Did anyone work on similar application does anyone has code to
similar.
I will appreciate if they can guide me