Yes...exactly... We are using the standardized one...unfortunately....we are not able to retrieve the chart of the value stack....that is why the error....
Tks....VJ dusty wrote: > > Here are some JFreeChart results used in WebWork (Struts2's parent). > > http://www.opensymphony.com/webwork/wikidocs/JFreeChartResult.html > > It looks like in Struts they have formalized the JFreeChart result type: > http://struts.apache.org/2.x/struts2-plugins/struts2-jfreechart-plugin/apidocs/index.html > > > > VJ22 wrote: >> >> Thanks Matt/David, >> >> I presume that by a servlet class you mean you flush the PNG file onto >> the output stream which is then rendered by the JSP....We are aware of >> that solution.... >> >> What we intend to use is the pull-MVC mechanism of Struts2...which helps >> us use the getChart() method to render the chart >> >> Tks...Vijay >> >> >> J. David Mendoza R. wrote: >>> >>> Hello Vijay... >>> >>> I'm using appfuse 1.9.4, spring and jfreechart, and what I did is, I >>> made a servlet that uses jfreechart's tools to generate the chart as a >>> PNG image and just present it within the JSP... This should work with >>> any web framework... >>> >>> David M. >>> >>> VJ22 wrote: >>>> Hello All, >>>> >>>> The problem that I face while integrating AppFuse with JFreeChart >>>> >>>> So I have a link which points to viewChart.html configured from the >>>> menu..When I click on this link I got an action class which populates >>>> the >>>> chart (Unit-tests prove that the png file is generated >>>> fine)...re-directs it >>>> to viewChart.jsp which has got the following image code >>>> >>>> <image src="/viewChart.html"/> -> which I presume will get the chart >>>> from >>>> the action >>>> >>>> The problem exception happens when it tries to execute the getChart() >>>> method...in the action class....A part of the stack-trace is attached >>>> here >>>> >>>> java.lang.NullPointerException: No chart found >>>> at >>>> org.apache.struts2.dispatcher.ChartResult.execute(ChartResult.java:105) >>>> at >>>> com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvo >>>> cation.java:343) >>>> >>>> So I assume that the chart object is being invalidated....but why ? I >>>> assume >>>> this uses a pull-MVC architecture...any help would be gladly >>>> appreciated..... >>>> >>>> struts.xml configuration >>>> >>>> <package name="chart" extends="jfreechart-default"> >>>> <action name="viewChart" >>>> class="com.pwmliteexp1.pwmLitexp1.web.action.PWMLitePieChartAction" >>>> scope="session"> >>>> <result name="success" >>>> type="chart">/WEB-INF/pages/viewChart.jsp</result> >>>> </action> >>>> </package> >>>> >>>> Thanks in advance >>>> >>>> Rgds....Vijay >>>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>> For additional commands, e-mail: [EMAIL PROTECTED] >>> >>> >>> >> >> > > -- View this message in context: http://www.nabble.com/JfreeChart---Struts2---Appfuse-detailed-problem-report-tf3279271s2369.html#a9140060 Sent from the AppFuse - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
