java.io.FileNotFoundException:error in showing my chart

[riadhhwajdii]

hi
i would like to preveiw a chart with jfreechart
my java code is :

Code: Select all

public String generateChartMethod(){
		 JFreeChart chart = ChartFactory.createTimeSeriesChart( 
	                "Test",  	// title 
	                "Date",		// x-axis label 
	                "Nombre",   // y-axis label 
	                getDataset(),	// data 
	                true,       // create legend? 
	                true,       // generate tooltips? 
	                false       // generate URLs? 
	        		); 
		 try {
             File file1 = new File("/JSFMonitoringJMX/pages/piechart.png");
             ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, null);
         } catch (Exception e) {
             e.printStackTrace();
         }
         return "jfreechart";
		}

but i had this error:

Code: Select all

java.io.FileNotFoundException: \Monitoring\pages\piechart.png (Le chemin d'accès spécifié est introuvable)
	at java.io.FileOutputStream.open(Native Method)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:179)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:131)
	at org.jfree.chart.ChartUtilities.saveChartAsPNG(ChartUtilities.java:318)
	at JfreeChart.generateChartMethod(JfreeChart.java:57)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:172)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
	at org.apache.jasper.el.JspMethodExpression.invoke(JspMethodExpression.java:68)
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
	at javax.faces.component.UICommand.broadcast(UICommand.java:387)
	at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:321)
	at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:296)
	at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:253)
	at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:466)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at TimeoutFilter.doFilter(TimeoutFilter.java:60)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
	at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
	at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.jstripe.tomcat.probe.Tomcat55AgentValve.invoke(Tomcat55AgentValve.java:20)
	at org.jstripe.tomcat.probe.Tomcat55AgentValve.invoke(Tomcat55AgentValve.java:20)
	at org.jstripe.tomcat.probe.Tomcat55AgentValve.invoke(Tomcat55AgentValve.java:20)
	at org.jstripe.tomcat.probe.Tomcat55AgentValve.invoke(Tomcat55AgentValve.java:20)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:595)

[david.gilbert]

According to the Javadocs for FileOutputStream, it throws a FileNotFoundException "if the file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason." I suspect you don't have the correct permission to create the directory that you've specified...