my dog learned polymorphism*
The moose likes Web Component Certification (SCWCD/OCPJWCD) and the fly likes HttpSession Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Certification » Web Component Certification (SCWCD/OCPJWCD)
Bookmark "HttpSession" Watch "HttpSession" New topic
Author

HttpSession

Parth Twari
Ranch Hand

Joined: Jan 20, 2010
Posts: 163
Source: Marcus quiz

Data in a HttpSession attribute will not be available if the web server restarts
true or false?
Answer: false

Explaination: Although session attribute data may dissapear if Tomcat is restarted, this is not guaranteed behaviour and some web servers may store session data in a database.

What does the spec say?


Parth Tiwari
| Pursuing Bachelor of Engineering | OSUM Club Leader | SCJP 6 | SCWCD 5 |...
Frits Walraven
Creator of Enthuware JWS+ V6
Bartender

Joined: Apr 07, 2010
Posts: 1640
    
  23

What does the spec say?

There is no requirement in the specs that say that the session information should be kept when the server goes down. So you are lucky (or not) if it is still available....

Regards,
Frits
Abimaran Kugathasan
Ranch Hand

Joined: Nov 04, 2009
Posts: 2066

So, it's up to implementing the container? Then we nee to know this, that there are some container will restore the session and some are not. Please confirm!


|BSc in Electronic Eng| |SCJP 6.0 91%| |SCWCD 5 92%|
Parth Twari
Ranch Hand

Joined: Jan 20, 2010
Posts: 163
Yes, tomcat does not store sessions others may decide to store them in a database while they are restarted.
Abimaran Kugathasan
Ranch Hand

Joined: Nov 04, 2009
Posts: 2066

then, what about the browser side? Is it also depends on the browser?
Parth Twari
Ranch Hand

Joined: Jan 20, 2010
Posts: 163


On browser its not about HttpSession its about cookies or about rewritten urls in the links you click.

So you can set your browser about how to deal with cookies and in case of links once the page is gone the appended jsessionid is gone as well.
Abimaran Kugathasan
Ranch Hand

Joined: Nov 04, 2009
Posts: 2066

Yea, thanks Parth, in browser side, it's cookie! Thanks!
 
 
subject: HttpSession
 
Similar Threads
STRUTS : diff between JSP implicit session object and HttpSession object
session attribute
Question from Marcus green
a question about sessions ...
SESSION related Questions