--- On Wed, 8/6/08, dynamicd <[EMAIL PROTECTED]> wrote:
> Also tried implementing the SessionAware. However the same thing.
Why?
Did you try setting the headers for not caching?
Dave
> dynamicd wrote:
> >
> > This is cool.. I tried it out. However once the
> > chart_display.jsp is called the first time through the
> image tag. it does
> > not call the DisplayChart.action again to refresh the
> image with a new one
> > when clicked on the DrawChart.action. (I added the
> println statement in
> > the display method to find out that the div is not
> refreshing) I have to
> > log out and log in (invalidate session) to get the new
> chart. I am missing
> > something
> >
> >
> >
> > public String display() throws Exception {
> > System.out.println("I AM IN THE DISPLAY
> NOW ");
> > Map attributes =
> ActionContext.getContext().getSession();
> > this.chart = (JFreeChart)
> attributes.get("CHART");
> >
> > if(chart == null) {
> > return Constants.FORWARD_INVALIDACTION;
> > }
> > return Constants.FORWARD_SUCCESS;
> > }
> >
> >
> > private void setChart(JFreeChart chart){
> > Map attributes =
> ActionContext.getContext().getSession();
> > attributes.put("CHART", null);
> > this.chart = chart;
> > attributes.put("CHART", this.chart);
> > }
> >
> > public JFreeChart getChart() {
> > return chart;
> > }
> >
> >
> >
> > Leena Borle wrote:
> >>
> >> Hello,
> >> See if this helps you.
> >> I have a form with remote DIV which displays
> chart after user clicks on
> >> submit.
> >> Trick here is to generate chart object, store it
> in session and display
> >> it
> >> in separate JSP. Remove the form part if you
> want to display just the
> >> dynamic-DIV using Chart image.
> >>
> >> Form.jsp [
> >> <s:form>
> >> <s:url id="display_chart"
> value="DrawChart_draw.action"
> >> namespace="/user" />
> >>
> >> <s:submit value="Draw
> chart" href="%{display_chart}"
> >> theme="ajax"
> targets="*chart_div*" />
> >> <br />
> >> </s:form>
> >>
> >> <h4>Your Running Chart</h4>
> >> <div id="*chart_div*">
> >> </div> <!-- End display chart
> -->
> >> </div>
> >>
> >> ]
> >>
> >>
> >> display_chart.jsp [
> >> <body>
> >>
> >> /MyApp/user/DrawChart_display.action
> >> </body>
> >>
> >> ]
> >>
> >>
> >> struts.xml[
> >> <package name="user"
> extends
> >> ="struts-default,jfreechart-default">
> >> <!-- Separate method to draw and
> display due to Remote
> >> DIV/Button tag contsraints.
> >> -->
> >> <action
> name="DrawChart_input" method="input"
> >> class=".xxx.DrawChart">
> >> <result
> name="input">form.jsp </result>
> >> </action>
> >>
> >> <action
> name="DrawChart_draw" method="draw"
> >> class="xxx..DrawChart">
> >> <result
> name="success">/jsp/display_chart.jsp
> >> </result>
> >> </action>
> >> <action
> name="DrawChart_display"
> method="display"
> >> class="xxx.DrawChart">
> >> <result
> name="success" type="chart">
> >> 400
> >> 300
> >> </result>
> >> </action>
> >>
> >> </package>
> >> ]
> >>
> >>
> >> DrawChart.java [
> >> JFreeChart chart;
> >> public String draw() throws Exception {
> >> //chart creation logic.
> >> //generate chart object
> >> chart = ....
> >> session = ....
> >> session.put("CHART",
> chart);
> >> return success;
> >> }
> >>
> >> /**
> >> * returns chart obejct from the session.
> >> This methos is used by display_chart.jsp
> >> */
> >> public String display() throws Exception {
> >> session = ...get session ...
> >> this.chart = (JFreeChart)
> session.get("CHART");
> >> if(chart == null) {
> >>
> addActionError(getText("error.nochart"));
> >> return ERROR;
> >> }
> >> return SUCCESS;
> >> }
> >>
> >> // this method will get called if we specify
> chart
> >> public JFreeChart getChart() {
> >> return chart;
> >> }
> >>
> >> /**
> >> * <p> input action
> >> */
> >> public String input() throws Exception {
> >> return INPUT;
> >> }
> >>
> >> ]
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