wood burning stoves*
The moose likes Servlets and the fly likes storing a whole page in a session 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 » Java » Servlets
Bookmark "storing a whole page in a session" Watch "storing a whole page in a session" New topic
Author

storing a whole page in a session

ali al
Greenhorn

Joined: May 02, 2005
Posts: 9
hello guys

can any one tell me how can i store a whole page in a servlet session?

thanks
Ben Souther
Sheriff

Joined: Dec 11, 2004
Posts: 13410

To bind a Java object to session, use
request.getSession().setAttribute(String, Object);
The first argument is the name you give to the object.

To retrieve it use:
reqeust.getSession().getAttribute(String);
You'll need to cast the object back down to it's original type.

So, if you want to cache the entire page to session, write all the text to a String or StringBuffer and bind it to the session.

Why do you want to do this?


Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf
ali al
Greenhorn

Joined: May 02, 2005
Posts: 9
i need to do some thing like this:

i have a page which has two questions and every question has three choices, the user should choose one choice of every quetion, if the user press a button to submit this page with out answering the quetion an error will come up probting the user to go back, so when he goes back he should see one of he is choices unchanged with out using the back button.
Ben Souther
Sheriff

Joined: Dec 11, 2004
Posts: 13410

The normal way of dealing with this is to retrieve the values from the form,
validate them and redraw the form if any are invalid.
There is no need to store the entire page.
Besides, you'll want to add a message to the page telling the user what values are invalid.
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: storing a whole page in a session
 
Similar Threads
Session Does Not Time Out
Tag Files - session implicit object availability
Maintaining sessions
HFSJ 2ed - about <c:set>
Updating a JSP session attribute and html code on mouse click