This week's book giveaway is in the Python forum.
We're giving away four copies of Python Continuous Integration and Delivery and have Moritz Lenz on-line!
See this thread for details.
Win a copy of Python Continuous Integration and Delivery this week in the Python forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Bear Bibeault
  • Paul Clapham
  • Jeanne Boyarsky
Sheriffs:
  • Devaka Cooray
  • Junilu Lacar
  • Tim Cooke
Saloon Keepers:
  • Tim Moores
  • Ron McLeod
  • Tim Holloway
  • Claude Moore
  • Stephan van Hulst
Bartenders:
  • Winston Gutkowski
  • Carey Brown
  • Frits Walraven

Session from JSP to Servlet lost  RSS feed

 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello. Can anyone help me with my problem?
i have a web application with many servlets and JSPs. The application has a LogIn option. In the LogIn servlet i start a new session, and after placing some informations in the session i go forward to a JSP.

LogIn.java relevant code:



After I forward, I get a Jsp page called Insert.jsp where I get the sessions attributes.

Insert.jsp relevant code:



After this i have a form that directs me to a servlet Adaugare.java. Here i do the same thing:

Adaugare.java code:


Here comes the problem. This returns null, as no session exists. Then i forward to same Insert.jsp file and there, even if i have HttpSession sess = request.getSession(false);, a new session with a new session ID is created different from the first one. So obviously out.println(sess.getAttribute("GLN")); returns null.

This is the long story. The short version:

When i go from a servlet to a jsp, session is ok, when i go from a jsp to a servlet, session is nowhere to be found . Then a new session is created when i forward to a JSP. Practically it creates a new cookie. If i print the contextPath from JSP and serlet, it's the same.

But here is the strange thing. This happens when i run the application on a apache with a mod_jk. When i run the app from a tomcat, it works fine.......

Please help, i've been stuck for 2 weeks on this problem.
 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,
I have this same problem you had 5 years ago.
Could you write the solution?
Thanks.
 
It is difficult to free fools from the chains they revere - Voltaire. tiny ad:
Become a Java guru with IntelliJ IDEA
https://www.jetbrains.com/idea/
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!