jak dostosować kolory grafiki JFreeChart. pozwala zobaczyć mój kod java:

private StreamedContent chartImage ;

public void init(){
    JFreeChart jfreechart = ChartFactory.createPieChart("title", createDataset(), true, true, false);
    File chartFile = new File("dynamichart");
    ChartUtilities.saveChartAsPNG(chartFile, jfreechart, 375, 300);
    chartImage = new DefaultStreamedContent(new FileInputStream( chartFile), "image/png");
}

public PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
          dataset.setValue("J-2", 10);
          dataset.setValue("J-1", 15);
          dataset.setValue("J", 50);
          dataset.setValue("J+1", 20);
          dataset.setValue("J+2", 15);
    return dataset;
}

strona html:

<p:graphicImage id="MyImage" value="#{beanCreateImage.chartImage}" />