I am doing a project using j2ee. It is a process management project that will be used inside my company to manage the software development processes.
basically, the system have three types of users: admin, user, release user.
admin can add/delete user accounts.
user can send requests through the system to admin or release user.
release user can receive requests.
all users can query information from a database.
All information such as developent project name, start date....etc are stored in database. Certain actions of users can update the database accordinglly.

the problem is I just start learning j2ee. what should I learn to finish such a project? Is jsp+ejb+jdbc enough? need servlets?

besides the above, i have very limitted experience on web programming. I only have about 4 months to do it.

How Do You Decide?
• Only you can decide what's best for your project.
• Use page-centric
       â€“ If the application is simple enough that links from page to page.
• Use servlet-centric
       â€“ Each link or button click requires a great deal of processing and decision-making about
         what should be displayed next.
• Mapping between requests and responses can help
       â€“ Each request maps to one and only one response
• No need for controller.
       â€“ Each request spawns a great deal of logic and a variety of different views can result
• A servlet is ideal.

Thanks very much

I will use bea weblogic workshop to finish it, and a teammate of mine told me today that my project may need several professional people and one year to finish.....he is good at JAVA.
but my boss seems not familiar with java