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Create a bar chart in JSP page using JFreeChart

                         

This Example shows you how to create a bar chart in JSP page using JFreeChart. Code given below creates a bar chart of scores of two teams in matches.

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.

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

jspbarchart.jsp


<%@page contentType="text/html" pageEncoding="UTF-8"%>

<%page  import="java.awt.*" %>
<%page  import="java.io.*" %>
<%page  import="org.jfree.chart.*" %>
<%page  import="org.jfree.chart.axis.*" %>
<%page  import="org.jfree.chart.entity.*" %>
<%page  import="org.jfree.chart.labels.*" %>
<%page  import="org.jfree.chart.plot.*" %>
<%page  import="org.jfree.chart.renderer.category.*" %>
<%page  import="org.jfree.chart.urls.*" %>
<%page  import="org.jfree.data.category.*" %>
<%page  import="org.jfree.data.general.*" %>

<%
            final double[][] data = new double[][]{
                {210300320265299},
                {200304201201340}
            };

            final CategoryDataset dataset = DatasetUtilities.createCategoryDataset(
                    "Team """, data);

            JFreeChart chart = null;
            BarRenderer renderer = null;
            CategoryPlot plot = null;


            final CategoryAxis categoryAxis = new CategoryAxis("Match");
            final ValueAxis valueAxis = new NumberAxis("Run");
            renderer = new BarRenderer();

            plot = new CategoryPlot(dataset, categoryAxis, valueAxis, 
            renderer
);

            plot.setOrientation(PlotOrientation.VERTICAL);
            chart = new JFreeChart("Srore Bord", JFreeChart.DEFAULT_TITLE_FONT, 
            plot, 
true);

            chart.setBackgroundPaint(new Color(249231236));

            Paint p1 = new GradientPaint(
                    0.0f0.0fnew Color(1689172)0.0f0.0fnew Color
                   (
201201244));

            renderer.setSeriesPaint(1, p1);

            Paint p2 = new GradientPaint(
                    0.0f0.0fnew Color(2553535)0.0f0.0fnew Color
                    (
255180180));

            renderer.setSeriesPaint(2, p2);

            plot.setRenderer(renderer);

            try {
                final ChartRenderingInfo info = new ChartRenderingInfo
                (
new StandardEntityCollection());
                final File file1 = new File("../webapps/jspchart/web/barchart.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" >
        <!meta  http-equiv="refresh" content="1">
        <title>JSP Page</title>
    </head>
    
    <body>
        <IMG SRC="barchart.png" WIDTH="600" HEIGHT="400" BORDER="0" USEMAP="#chart">
    </body>
</html>


Output:



Download code

                         

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