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Create a pie chart in jsp page using JFreeChart
Posted on: September 2, 2008 By Deepak Kumar

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, 600, 400, 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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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??

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