How to get the current logged in user's username anywhere in the session?

Hi all,

I've a very basic problem with Spring Security.

I've implemented Spring Security 3 and have a login form which is working fine.

But once inside I need to fetch data from the Database which is related to the current logged-in user.

So how can I get the username of the current user?

I've tried request.getRemoteUser() on the first request, but will it work on every request. I really doubt that.

Please guide me. HELP. Any help is really appreciated.

I've found a solution to the problem:

I've used SecurityContextHolder to get the principal & use in in my impl class.
Works as a charm. :)
Here's the code for anyone looking for the same problem.

Code:

---

User user = (User)SecurityContextHolder.getContext().getAuthentication().getPrincipal();
                String email = user.getUsername();

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But is there any way to inject it in my classes. How to do that? Please guide.