Question

I have a problem with forwarding to a .jsp page. Let me describe my program:

In Servlet I would like to confirm something so I did .forward() to .jsp where I have included javascript with confirm in $(document).ready(function()…

In case OK was selected I make new XMLHttpRequest() and set a parameter confirm=1 and go back to previous Servlet where a block of code which has to execute after confirmation(confirm=1) is executed as expected. But the very last line of that block which is .forward back to .jsp seems to have no effect at all.

Servlet code:

if("1".equals(request.getParameter("confirm"))){
  ...
   setting some request.setAttribute();
}
else{
  ...
}

RequestDispatcher  rd = request.getRequestDispatcher(...);
rd.forward(req, res);

Actually, I see the correct page, but it’s from before confirmation I think. It should have probably been reloaded because I have to take some attributes from request and display some things with jquery, depending on those attributes values.

So what do you think is the cause for .forward() not having effect? Can I force the page somehow to reload?

EDIT: The first time Servlet code is executed(else case) .forward() call works fine. But next time it does nothing, no matter which page I try to forward to. Just like I would have no forward call at all. Strange. I really hope somebody has an explanation for this.

EDIT2: It’s not forward problem I guess. If I do system.out.print of needed attributes I get correct values. But why is page not reloading? Even if I forward to different .jsp I still see the previous one.

Answer 1

I didn’t really managed to solve my problem with .jsp page not loading. I actually only needed to pass some attributes from Servlete to javascript so I used jQuery ajax call for PrintWriter so I got those attributes as a key:value pairs in javascript function. Then I simply used javascript to set those values to some spans.