jfreechart

/*
  Before to use this, U need to place 2 jar file in lib folder of your
  play project.
  jcommon-xx.jar
  jfreechart-xx.jar
  ( These File can found in JFreeChart Download Package lib folder)
  
  Here is Code in controller Method.
*/

public static void chart() throws IOException {
  DefaultPieDataset data = new DefaultPieDataset();
   data.setValue("Category 1", 250);
   data.setValue("Category 2", 500);
   data.setValue("Category 3", 310);

   JFreeChart chart = ChartFactory.createPieChart(
           "Sample Pie Chart",
           data,
           true, // legend?
           true, // tooltips?
           false // URLs?
           );
   BufferedImage bf = chart.createBufferedImage(500, 500);
   ByteArrayOutputStream baos = new ByteArrayOutputStream();
   ImageIO.write(bf, "jpg", baos);
   baos.flush();
   byte[] imageInByte = baos.toByteArray();
   baos.close();
   InputStream is = new ByteArrayInputStream(imageInByte);

   response.contentType = "image/jpg";
   renderBinary(is);
}

JfreeChart