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FrontPage, call, Servlet, Forwarded, Rendered, what's wrong?  RSS feed

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Hello guys...!!
I'm having a question here.

Actually, is it wrong if my flow use this one;

1) FrontPage have a link
2) Link call ajax (call a Servlet)
3) Servlet Request some data from DB and also this Servlet assign some session variables
4) Forwarding the page using RequestDispatcher --> actually calling another jsp
6) JSP rendered and returned into ajax call
7) Interface updated obtained.

Is that correct way to go through?

OKay, let me start from number 2-Link call ajax

Whereas the refine-datatable-bank is the url which is firstly from jsp.

Then, the number 3-Servlet Request data from DB ( i just put 'X' variable, we assume it's database data okay?)
and then forwarding 'em into the interface.

Okay, then the last number 6-Rendering the value obtained from session;

But why it doesn't give me a returned anything ??
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