dynamically refreshing webpage content

pesho318i · November 13th, 2007, 02:59 PM

hi guys

(obviously) I have a problem

I'll try to explain it as clearly as I can. If I sound confusing somewhere, please don't hesitate to ask me for clarificaiton.

My webpage consists of different sectors. Each one is a separate JSP page.

When I want to refresh a single sector, I use a javascript function, which issues a request to the controller servlet and the servlet returns the appropriate JSP page along with a Java object, containing information used in the JSP. The servlet code is something of the sort:

Code:

MyCar aCar = new MyCar();
// Set attributes
request.setAttribute("aCar", aCar);

// Forward to the appropriate JSP
if (p.getServerInfo().getPageType().equals("advertisement"))
{             getServletContext().getRequestDispatcher("/advertisement.jsp").forward(request, response);
} else if(......) {
       ...... forward to another JSP
}

then in the JavaScript function I plug the response of the servlet into the appropriate place (<div>) in my webpage.
However, sometimes I need to change more than one <div> based on the information that I pass with the Java object sent by the servlet.

A simple example: looking at the current(webforumz) page, let's say that the division on the right is advertisement.jsp. (As far as I understand) when I want to refresh it, I send a request to the servlet and it forwards the response to the advertisement.jsp and the result can be plugged from the JavaScript function into <div id=advertisement>
BUT let's say I also want to change the <div id=welcome>Welcome, Pesho318i</div> with another content, which I also can get from the Java object that the servlet sends as a request.
So, Ze question is how do I do that ???

Thank you in advance!
Pesho

Stuart · November 13th, 2007, 10:33 PM

I think it would be easiest to refresh the entire page. Like this:

HTML Code:

<meta http-equiv="refresh" content="0">

Set '0' to the number of seconds you want the page to wait before refreshing itself...
If this is not what you want, could you clarify.
If anyone else has a suggestion or thinks my suggestion is deprecated, don't hesitate to post...

pesho318i · November 14th, 2007, 09:28 AM

thanks, but a full page refresh is not what I want. To solve the problem I will probably use two Ajax requests from my JavaScript function...

P.

Stuart · November 14th, 2007, 05:51 PM

That should work. Good luck, and if you have any problems, just ask...