JDBC For Tomcat 4.0

I don't know how to setting. Who can teach me?
The Tomcat say just can use jar file. But the JDBC Driver is zip.
It need to exchange the format?
And why I use thin driver in JBuilder, it always say "The
Network Adapter could not establish the connection"? And method
can slove it?
But I use oci8, that is success connect to the database. It need
any setting?
Thanks!

Hi there,
Firstly, check if you have the JDBC driver on the machine that runs Tomcat. You need this to talk to your database.
Secondly, "NullPointerException" can be caused by the connection to the database is not opened yet, make sure your code to open the conn before doing a query to the your database.
Thirdly, from what you stated below it looks like JDBC-ODBC bridge driver instead of pure JDBC driver connectivity.
In conclusion, you should provide more information abt your configuration for us to help you.
$-art

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