Java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name no

Question

Hi,
I am working with the following program. The same program is working with JBOSS but not with Tomcat-5. I am using MS-Access. Working with this program is very essential now. Please Help me.
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.*;
public class MDBGetData extends HttpServlet{
     Connection con=null;
     Statement st=null;
     ResultSet rs=null;
     public void doGet(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException{
          PrintWriter out=res.getWriter();
          out.println("Connecting To data Base");
          try{
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
               con=DriverManager.getConnection("jdbc:odbc:cmpny","sa","");
               st=con.createStatement();
               out.println("Connected to database");
               rs=st.executeQuery("select * from cmpny");
               while(rs.next()){
                    out.println(rs.getString(1));
          catch(Exception e){
               System.out.println("Error While Creating The connection : " +e);
}

Answer 1

This is code for connect mySQL database:
Connection con=null;
     Statement stmt=null;
     ResultSet rs=null;
     // Set up the JDBC connection
     try {     
          // Create
          InitialContext ctx=new InitialContext();
          ds=(DataSource)ctx.lookup("java:comp/env/jdbc/mysql");
          con=ds.getConnection();
          stmt=con.createStatement();
          rs=stmt.executeQuery(sqlQuery);
catch(SQLException e){
Note: before you use these code you have to set datasource in tomcat
I will show you how to do it next post.