Disk storage in a Java EE application

Question

I have Java EE app in which I want to small little amount of data to disk, eg just user/passwords.

I dont want to go through the hassle of integrating with a full db for this little amount of data.

Is there a standard way to access the file system and a standard folder where web applications can store their data on disk, other than using a database?

Note:

I am not using EJBs. It's a web application using Servlets.

Answer 1

You could consider using the preferences API to store this data - it's available on Java EE as well.

Answer 2

Use a simple Java based database, like HSqlDB or h2. The setup won't be that complicated compared to a heavyweight DB. The key advantage this will give you is managing concurrent updates, which you would have to code yourself if you use direct file access.