Try using session.getNameValues() or getValueNames() ( I always forget which
one!) that should return u a list of all the session variables. Use this to
debug and see exactly at what page u lose the session variables..might help
in debugging..other thing is increasing the session timeout values..increase
it just in case though I am not sure it will help..
hth,
A
> i am creating a web app that uses a servlet to login and then passes the
> user along to an initial jsp and several sub-jsps below that. once i
> authenticate the user in the servlet i store their info (userid,
logintime)
> in the session object because i want to display that on all the subsequent
> jsps.
>
> After placing the info in the session object and redirecting to the first
> jsp i am able to extract and display that information 100% of the time.
>
> my problem is this: any calls to subsequent jsps may or may not be able
to
> extract the info. about 30% of the time when i try to display the info my
> variables are null. in other words, the information is no longer there.
> here is the code i'm using on each page. it comes before the </head> tag:
>
> String foo
> ...
> foo = (String) session.getValue("userName"); file://get the value
> ...
> session.putValue("userName", foo); file://place back in the session for
next
> page
> ...
>
> as i said before, this works about 60-70% of the time, and the subsquent
> page will successfully extract 'userName' and assign it to 'foo'. but
other
> times the value isn't there and foo is null, throwing a
nullpointerexception
> when i try to put it back into the session.
>
> am i doing something completely wrong here? am i leaving something out?
any
> help would be very welcome.
>
> bradley
>
>
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