Swapping an Access database for an oracle database to connect to my JSP website

Hi, i am not sure if this is the correct place to be posting this message, but anyway here goes. I currently have a Microsoft Access database connected to my JSP website which allows dynamic activities such as searching and login etc. All of this is on my local laptop which has the following installed:
Microsoft Access, Dreamweaver, and Tomcat as the server. I also have Oracle installed and would like to use this as the back end database to connect to my site instead of the Access database.
The problem i have is that i dont really know where to start. I believe i need a JDBC driver, If so where do i get it from? Also which bits of code do i need to modify?

Any replies will be apprecited.

Indeed, you do need a JDBC driver. Normally, I would expect Oracle to let you download it from their site. I know MySQL offers a JDBC driver, so I'd expect Oracle to do the same.