You probably want to architect the classes in such a way that they are
not tightly coupled to the http servlet session.
Anyway, when you were working with ThreadLocal earlier, did you first
set the ServletRequest from the filter?
class UserService {
private UserDAO userDAO;
public Collection <Item> getItemsForUser(User user){
return userDao.getItemsForUser(user);
}
}
class UserDAO {
public Collection<Item> getItemsForUser(User user) {
Long userId = user.getId();
String userName = user.getUserName();
// query the database based on user information
}
}
On Jan 9, 3:53 am, Prashant Gupta <[email protected]> wrote:
> I tried following code, getting null all the time.
>
> public static HttpSession getSession(){
> return new ThreadLocal<HttpServletRequest>().get().getSession();
>
> }
>
> 2010/1/9 Elias Mårtenson <[email protected]>
>
>
>
> > On 9 Jan, 01:27, Prashant Gupta <[email protected]> wrote:
>
> > > I am trying to implement my own user management system, for that I need
> > some
> > > way to make session id available to all classes independent of whether it
> > > extends HttpServlet or not. I know there is some way to do that but I am
> > not
> > > able to find it. Any kind of help would be appreciated.
>
> > One way to do it is to use a servlet filter to make the user
> > information available through a ThreadLocal instance. That way you can
> > have a single static method that returns the user wherever you are.
>
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