JSP 에서 JFreeChart 사용하기

예제 구성파일

package chart;
import org.jfree.chart.*;
import org.jfree.data.category.*;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.xy.*;
import org.jfree.data.*;
import org.jfree.chart.renderer.category.*;
import org.jfree.chart.plot.*;
import java.awt.*;

public class BarChartBean {

public static void main(String arg[]){
BarChartBean bcb = new BarChartBean();
JFreeChart chart = bcb.getBarChart();
ChartFrame frame1=new ChartFrame("Bar Chart",chart);
frame1.setSize(400,350);
frame1.setVisible(true);
}

public JFreeChart getBarChart() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(2, "Marks", "Rahul");
dataset.setValue(7, "Marks", "Vinod");
dataset.setValue(4, "Marks", "Deepak");
dataset.setValue(9, "Marks", "Prashant");
dataset.setValue(6, "Marks", "Chandan");
JFreeChart chart = ChartFactory.createBarChart (
"BarChart using JFreeChart","Student", "Marks", dataset,
PlotOrientation.VERTICAL, false,true, false);
chart.setBackgroundPaint(Color.yellow);
chart.getTitle().setPaint(Color.blue);
CategoryPlot p = chart.getCategoryPlot();
p.setRangeGridlinePaint(Color.red);
return chart;
}
}

invalid-file

<%@ page contentType="image/jpeg"%>
<%@ page import = "org.jfree.chart.*" %>
<%@ page import ="chart.*"%>
<%
ServletOutputStream sos = response.getOutputStream();
BarChartBean bcb = new BarChartBean();
JFreeChart chart = bcb.getBarChart();
ChartUtilities.writeChartAsPNG(sos, chart, 400, 400);
%>

invalid-file

<%@ page contentType="text/html;charset=KSC5601"%>
<html>
<head><title>JFreeChart with JSP example</title></head>
<body>
<center>
JFreeChart를 JSP 에서 사용하는 예제
<hr width="50%">
<img src="chart.jsp">
</center>
</body>
</html>

Programming

JSP 에서 JFreeChart 사용하기

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