This week's book giveaway is in the OCMJEA forum.
We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line!
See this thread for details.
The moose likes Servlets and the fly likes Serlvets DB connection pool optimal implementation? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of OCM Java EE 6 Enterprise Architect Exam Guide this week in the OCMJEA forum!
JavaRanch » Java Forums » Java » Servlets
Bookmark "Serlvets DB connection pool optimal implementation?" Watch "Serlvets DB connection pool optimal implementation?" New topic
Author

Serlvets DB connection pool optimal implementation?

Joe Anderson
Greenhorn

Joined: Apr 20, 2012
Posts: 1
I've created a pool class (DBPool) to create the connection pool (Tomcat). This class is then initialized by the ServletContextListener class.

It might be good to know that my web system got several servlets, each of them containing up to maybe 20 db queries.

My question is, where should I create the connection?
1. In the beginning of each servlet (in the doPost/doGet section).
Then passing on the conn to each method containing the actual db queries.
One connection will then be used for the entire request, no matter then number of db queries performed.
But where should I close the connection?
2. Before each db query.
Then it will be easy to close the connection. But then loads of connections from the pool will be got and closed for each request.
3. Some other implementation
?

Greetings,
Joe

 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Serlvets DB connection pool optimal implementation?