create bar chart in jsp using msaccess database

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 8 in the jsp file: /bar.jsp Generated servlet error: C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\chetana\org\apache\jsp\bar_jsp.java:57: cannot find symbol symbol : constructor JDBCCategoryDataset(java.lang.String,java.lang.String) location: class org.jfree.data.jdbc.JDBCCategoryDataset

An error occurred at line: 8 in the jsp file: /bar.jsp Generated servlet error: JDBCCategoryDataset dataset = new JDBCCategoryDataset("jdbc:odbc:Driver={Microsoft Access Driver(.mdb,.accdb)};DBQ=C:\mithu.accdb", "sun.jdbc.odbc.JdbcOdbcDriver"); ^ 1 error

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

View Answers

April 2, 2011 at 3:58 PM

Follow these steps:

1)Go to the start->Control Panel->Administrative Tools-> data sources.

2)Click Add button and select the driver Microsoft Access Driver(*.mdb).

3)After selecting the driver, click finish button.

4)Then give Data Source Name and click ok button.

5)Your DSN will get created.

6) Restart your server and run given jsp code.

<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page import="org.jfree.data.*" %>
<%@ page import="org.jfree.chart.*" %>
<%@ page import="org.jfree.chart.plot.PlotOrientation"%>
<%@ page import="org.jfree.data.jdbc.JDBCCategoryDataset"%>
<%
String query="SELECT * from chart";
JDBCCategoryDataset dataset=new JDBCCategoryDataset("jdbc:odbc:student","sun.jdbc.odbc.JdbcOdbcDriver","","");
dataset.executeQuery(query);
JFreeChart chart = ChartFactory .createBarChart3D(
"Test", 
"Id", 
"Score", 
dataset, 
PlotOrientation.VERTICAL,true, true, false);
ChartFrame frame1=new ChartFrame("Bar Chart",chart);
frame1.setVisible(true);
frame1.setSize(350,450);
%>

Here student is our dsn and chart is table.

Ads