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Checking to see if the session is valid and not NULL

Posted on 2011-09-28
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Last Modified: 2012-05-12
How can I check to make sure that my session is valid and not null?
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Question by:jkteater
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6 Comments
 
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Accepted Solution

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CEHJ earned 50 total points
ID: 36717968
Something like
HttpSession s = req.getSession(false);
boolean validSession = (s != null);

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Author Comment

by:jkteater
ID: 36718318
can you print out anything related to the session?

HttpSession s = req.getSession(false);

System.out.println( s.toString());
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LVL 47

Expert Comment

by:for_yan
ID: 36718347
You cann printa arrayy of names:
String [] ss = session.getValueNames();
for(String s: ss)System.out.println(s);

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LVL 47

Assisted Solution

by:for_yan
for_yan earned 50 total points
ID: 36718405
You may try tp print s.toString() but chances are you'll get some cryptic like Session@...(some numbers or something).
 And if you print list of stored filed names - that would be meaningful:

HttpSession session = req.getSession(false);
if(session != null){
String [] ss = session.getValueNames();
for(String s: ss)System.out.println(s);
}

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Author Comment

by:jkteater
ID: 36718427
Thanks to Both of you
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LVL 86

Expert Comment

by:CEHJ
ID: 36814180
:)
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