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Using Connection Pool To Access MySQL Database On Tomcat

JiaPei Jen
Ranch Hand

Joined: Nov 19, 2000
Posts: 1309
Hi, I was reading the instructions to use connection pool to access MySql database on Tomcat 4.1.18. The instructions are at the web link below:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html
I am confused and need help:
1. In the instruction, it says that DBCP uses the Jakarta-Commons Database Connection Pool. It relies on number of Jakarta-Commons componenets:
Jakarta-Commons DBCP 1.0
Jakarta-Commons Collections 2.0
Jakarta-Commons Pool 1.0
These jar files along with your the jar file for your JDBC driver should be installed in $CATALINA_HOME/common/lib.
Question: Where do I find those jar files. The links are not provided in the instruction.
2. To configure a DBCP DataSource so that abandoned dB connections are removed and recycled, add the following paramater to the ResourceParams configuration for your DBCP DataSource Resource.....
Question: I know how to add ResourceParams. But ... where do I configure DBCP DataSource Resrouce? In the server.xml? Which section in the server.xml?
Thank you for your help.
Mike Farnham
Ranch Hand

Joined: Sep 25, 2001
Posts: 76
To answer question #1:
You can find Jakarta Commons at:
http://jakarta.apache.org/commons/
Philip Shanks
Ranch Hand

Joined: Oct 15, 2002
Posts: 189
Since you are using a late model Tomcat server, then DBCP is already present and functional. You don't need to install anything.
I advise that you also use the latest production JDBC driver for MySQL (com.mysql.jdbc.Driver).


Philip Shanks, SCJP - Castro Valley, CA
My boss never outsources or has lay-offs, and He's always hiring. I work for Jesus! Prepare your resume!
Axel Janssen
Ranch Hand

Joined: Jan 08, 2001
Posts: 2164
The newer version of Tomcat ship with an admin app.
http://localhost:8080/admin/index.jsp
There you can configure datasources.
Axel
 
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