Cannot connect and run query for Access database

Hi,
I have a html file and a servlet file which contains code to connect to a database. I also have a sales database with customer table along with other tables in Access. I have created a DSN in Windows named sales which connects to the sales database. Now, when I am running the html form, the servlet does not run the query "Select * from Customer". It seems it cannot make any connection to the database.
Any help is appreciated. I am very new to JDBC technology. Thanks.
HTML FORM CODE:
<html>
<head><title>Sales</title></head>
<body>
<form action="http://localhost:8100/servlet/SalesServlet" method=POST>
<strong>Select:</strong>
<textarea cols=50 rows=8 name=select></textarea><p>
<input type=submit value="Query">
<input type=reset>
</form></body></html>
SALESSERVLET CODE:
//Copyright (c) 2000, Art Gittleman
//This example is provided WITHOUT ANY WARRANTY either expressed or implied.
/* Queries the Sales database. Needs to be modified
* to use metadata to correctly output the result set.
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import sun.jdbc.odbc.JdbcOdbcDriver;
public class SalesServlet extends HttpServlet {
Connection con;
Statement stmt;
public void init(ServletConfig sc) throws ServletException {
super.init(sc);
try{
new JdbcOdbcDriver();
String url = "jdbc:odbc:Sales";
String user = "";
String password = "";
con = DriverManager.getConnection(url, user, password);
stmt = con.createStatement();
}catch (Exception e) {
e.printStackTrace();
System.exit(1);
public void doGet(HttpServletRequest req,
HttpServletResponse resp)
throws ServletException, IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
try{
String query = req.getParameter("select");
ResultSet rs = stmt.executeQuery(query);
ResultSetMetaData rsMetaData = rs.getMetaData();
int cols = rsMetaData.getColumnCount();
while(rs.next()) {
String s = "";
for(int i=1; i<=cols; i++)
s += rs.getString(i) + ' ';
s += "<br>";
out.println(s);
}catch(Exception e) {
e.printStackTrace();
out.close();
public void doPost(HttpServletRequest req,
HttpServletResponse resp)
throws ServletException, IOException {
doGet(req,resp);
}

String url = "jdbc:odbc:Sales";
String user = "";
String password = "";
con = DriverManager.getConnection(url, user, password);This might be causing your problem, but not sure. Since you don't need a username or password for the ODBC connection, you can just use
con = DriverManager.getConnection(url);
The username and password aren't needed, so you can just use the above call instead. Perhaps the ODBC is trying to find a user called "" with a password "" and puking on itself, who knows... but you should post whatever exceptions or specific problems you're having that make you think you're not connecting.

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Cannot connect and run query for Access database

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