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Create a pie chart in jsp page using JFreeChart

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This Example shows you how to create a pie chart in jsp page using JFreeChart. Code given below creates a simple pie chart for given values.

Create a pie chart in jsp page using JFreeChart

     

This Example shows you how to create a pie chart in jsp page using JFreeChart. Code given below creates a simple pie chart for given values.
In the code given below we have extended class ApplicationFrame to create a frame and also pass a string value to the constructor of ApplicationFrame class by using super keyword that will be name of the created frame.

Methods used in this example are described below:

pack(): This method invokes the layout manager.

centerFrameOnScreen(): This method is used for the position of the frame in the middle of the screen.

setVisible(): This method is used for display frame on the screen.

createCategoryDataset(): This method is used to create the instance of CategoryDataset Interface and that contains a copy of the data in an array.

createPieChart(): This method is used to create bar chart for given values. It takes title, category axis label, , dataset, legend, tool tips and urls as parameters.

saveChartAsPNG(): This method is used to save chart in to png format.

jsppiechart.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<%page  import="java.awt.*" %>
<%page  import="java.io.*" %>
<%page  import="org.jfree.chart.*" %>
<%page  import="org.jfree.chart.entity.*" %>
<%page  import ="org.jfree.data.general.*"%>
<%
  final DefaultPieDataset data = new DefaultPieDataset();
  data.setValue("One"new Double(43.2));
  data.setValue("Two"new Double(10.0));
  data.setValue("Three"new Double(27.5));
  data.setValue("Four"new Double(17.5));
  data.setValue("Five"new Double(11.0));
  data.setValue("Six"new Double(19.4));

  JFreeChart chart = ChartFactory.createPieChart
  (
"Pie Chart ", data, true, true, false);

 try {
 final ChartRenderingInfo info = new 
  ChartRenderingInfo
(new StandardEntityCollection());

  final File file1 = new File("../webapps/jspchart/
  web/piechart.png"
);
  ChartUtilities.saveChartAsPNG(
   file1, chart, 
600400, info);
  catch (Exception e) {
  out.println(e);
  }
%>
<html>
  <head>
  <meta http-equiv="Content-Type" 
 
content="text/html; charset=UTF-8">
  <title>JSP Page</title>
  </head>
  <body>
  <IMG SRC="piechart.png" WIDTH="600" HEIGHT="400" 
   BORDER=
"0" USEMAP="#chart">
  </body>
</html>


Output:



Download code
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Posted on: September 2, 2008

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Comments
Kelvin Angom
May 29, 2011
Re: Details about PieChart.png

what is PieChart.png in jsppiechart.jsp...is it a piechart picture or an empty file??
Ajay
February 8, 2012
File is not working

I am using Apache & trying this code, but it is not creating image file as per code :: final File file1 = new File("../webapps/jspchart/web/piechart.png"); any clue ...? & please ease out you capthca
somye
July 1, 2012
Query

this code is giving me exception "java.io.FileNotFoundException: ../webapps/jspchart/web/piechart.png (No such file or directory) " Any solution??
Indranil
May 29, 2014
Total wrong

This code is totally wrong...
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