This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
It's all a question of when you need the values from the database. If you need them before the JSP is displayed, then you should call databasevalues.do as the URL. If you don't need them until after the form is submitted, then just make databasevalues the action for your form.