I don't think jsp connecting to your device to get the thumb print is possible. one way to do this is when you scan finger print on the device the software associated with that device should let you save the finger print as an image. once you save the finger print as an image then upload it via a jsp page and store the image in database and also display it on a jsp page.
Are you successful with capturing the fingerprint data and store it in the database? I am using Oracle database and Apex 4.2 for developing Voter registration system for school project. I am planning to get U.Are.U 4500 fingerprint device from Digital Persona. Can you help me with this?