it does sound like a caching issue.. try this directive before your <html>
<%
response.setHeader("Cache-Control", "no-cache"); //HTTP 1.1
response.setHeader("Pragma", "no-cache"); //HTTP 1.0
response.setDateHeader("Expires", 0); //prevents caching at the proxy
server
%>
?
Martin
----- Original Message -----
From: "Laurie Harper" <[EMAIL PROTECTED]>
To: <user@struts.apache.org>
Sent: Thursday, July 31, 2008 2:28 AM
Subject: Re: Struts 2 And JFreeChart
I don't see what Ajax has to do with this... It sounds more like an HTTP
caching issue. Cree, if you do a page refresh, is the image updated
correctly? I haven't used the JFreeChart result, but maybe it's not setting
the right cache control headers.
L.
Randy Burgess wrote:
Ajax is text only so you can't use it with an image type.
Regards,
Randy Burgess
Sr. Software Architect
D5 Systems, LLC
From: cree <[EMAIL PROTECTED]>
Reply-To: Struts Users Mailing List <user@struts.apache.org>
Date: Wed, 30 Jul 2008 12:14:02 -0700 (PDT)
To: <user@struts.apache.org>
Subject: Struts 2 And JFreeChart
Hello Everyone,
Got a quick question regarding the streaming of a JFreeChart (or any
image)
and how to be able to handle it on a jsp. I have create a servlet that
will
stream out an image to the jsp using a syntax similar to (in my
struts.xml):
<action name="testChart"
class="TestBarChart">
<result name="success" type="chart">
350
300
</result>
</action>
So if I, in my html, created an img tag such that <img
src="testChart.action"/ , it will correctly create the chart. My
problem
arises when I am using it under a dynamic context. For example, if
initially I submit a form button (theme="ajax" targets="divTarget") then
it
would render new data and an initial image.
If I submit the form again with different user input the data would
change
but the image is still the same. I assume it is the same buffered image
that
it first loaded, but the action itself will never get reloaded. The
action
would not get executed at all.
My question is whether there is a way I can manually force the img tag
to
invoke the action itself.
Thanks for any input
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