How to stop processing a JSP early?

Question

I\'ve got a JSP page, which calls a function and checks its return value. If the return value is not null, the JSP page goes on to use it. If the return value IS null, I wan

Answer 1

Regardless of how to terminate processing of a JSP early, I would suggest handling flow control in a servlet prior to handling the display, and switch to an appropriate JSP depending on the outcome of the function call.

I tend to use JSPs purely for displaying the contents of a bean (or more than one), and all logic is contained within the invoking servlet. By doing this you get a much cleaner separation of concerns between your components, and a more easily comprehensible and debuggable system.