On my system I added the classpath to my mm.mysql installation directory or
/usr/local/mm.mysql.jdbc-1.2c This was enough to give me access to my
database.
Here is some sample code that you can modify to retrive data from your
database.
import java.sql.*;
import java.io.*;
public class newjavadb
{
public static void main( String [ ] args )
{
String username = "avaliduser";
String password = "avalidpwd";
String url = "jdbc:mysql://domain.com.au/databasename";
String queryString = "SELECT ves_ref FROM
lbs_web_ves_sched";
int count = 0;
// Load the driver
try
{
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
System.out.println("Success Driver Loaded" );
}
catch(java.lang.ClassNotFoundException e)
{
System.err.print("ClassNotFoundException: ");
System.err.println( e.getMessage() );
}
catch( Exception e )
{
System.err.print("Exception : " + e );
}
try
{
System.out.println("Inside Connection Try block" );
Connection con;
Statement stmt;
System.out.println("url is :" + url );
// Establish connection to the database
con = DriverManager.getConnection(url, username,
password);
System.out.println("Ok, connection to the DB
worked.");
System.out.println("Let's see can retrieve something
with : " +
queryString );
// Create a Statement object
stmt = con.createStatement();
// Send the query and bind the result to a set
ResultSet rs = stmt.executeQuery(queryString);
while( rs.next() )
{
count++;
String s = rs.getString("ves_ref");
System.out.println( s + "is the FIELD value.
Count is:" + count );
}
// Close resources
stmt.close();
con.close();
}// end try block
catch( SQLException ex)
{
System.err.println("==> SQLException: ");
while(ex != null)
{
System.out.println("Message: " +
ex.getMessage() );
System.out.println("SQLState: " +
ex.getSQLState() );
System.out.println("ErrorCode: " +
ex.getErrorCode() );
ex = ex.getNextException();
System.out.println(" ");
}
}// end catch block
}// end main
}// end class newjavadb
----- Original Message -----
From: Shailaja Someshwar <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 28, 2000 10:27 PM
Subject: mm JDBC driver
> Hello
>
> Where do I need to place the mm.jdbc driver for MySQL
> in tomcat directory so that its available system wide
> and all of the Apache virtual hosts.
>
> Also can someone direct me to a sample application to
> test my JDBC connection is working or not, as I do not
> know much about Java.
>
> Thanks in advance.
>
> Regards,
> Shailaja
>
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