Hi Friend,

Create database table chart(id,score) and try the following code:

<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page import="org.jfree.chart.ChartFrame" %>
<%@ page import="org.jfree.chart.ChartFactory" %>
<%@ page import="org.jfree.chart.ChartUtilities" %>
<%@ page import="org.jfree.chart.JFreeChart" %>
<%@ page import="org.jfree.chart.plot.PlotOrientation"%>
<%@ page import="org.jfree.data.*" %>
<%@ page import="org.jfree.data.jdbc.JDBCCategoryDataset"%>

<%
String query="SELECT * from chart";
JDBCCategoryDataset dataset=new JDBCCategoryDataset("jdbc:mysql://localhost:3306/test";,
"com.mysql.jdbc.Driver","root","root");

dataset.executeQuery( query);
JFreeChart chart = ChartFactory .createBarChart3D(
"Bar Chart",
"id",
"score",
dataset,
PlotOrientation.VERTICAL,true, true, false);

try
{
File image = new File("C:\\chart.jpg");
ChartUtilities.saveChartAsJPEG(image, chart, 400, 300);
FileInputStream fileInStream=new FileInputStream(image);
ServletOutputStream outStream=response.getOutputStream();
long fileLength;
byte[] byteStream;

fileLength = image.length();
byteStream = new byte[(int)fileLength];
fileInStream.read(byteStream, 0, (int)fileLength);

response.setContentType("image/jpg");
response.setContentLength((int)fileLength);
fileInStream.close();
outStream.write(byteStream);
outStream.close();

}
catch (IOException e)
{
System.out.println("Problem in creating chart.");
}
%>

Hope that it will be helpful for you.
Thanks