Jorge Saenz wrote:
> hello,
>
> could anybody say me if it�s possible making a servlet to invoke a method
> of another servlet that is loaded in the same server???
>
> thanks...and regards
>
> Jorge
>
Under the 2.0 API, this is possible -- you can use ServletContext.getServlet()
to get a reference to another servlet, and then call its methods like any
other Java class.
However, this is a very bad idea (for lots of reasons that have been hashed
over and over on this list). In any case, the arguments are now academic,
because the 2.1 API has deprecated the getServlet() call, with no
replacement. Thus, you need to go back to why you want to do this in the
first place.
Examples of reasons you might want to, and what to do about them:
* Gain access to shared data --> store shared
data objects with ServletContext.setAttribute()
(if global) or HttpSession.putValue() (if private
to a user).
* Include the output of one servlet in the page
generated by another --> Use RequestDispatcher.include
* Call common utility functions coded in one
servlet --> Redesign your code to separate
out the common functions into a non-servlet
class that you can address directly.
Craig McClanahan
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