Struts1 provided a data-source configuration element because, at the
time that was added, there was no consistent mechanism for configuring
data sources that worked across servlet containers. That changed a long
time ago and Struts first deprecated, and then removed, its support for
the data-source configuration element.
The preferred way to set up a data source (using a connection pool or
not) is through JNDI using your servlet container configuration. The
article Jeromy linked to mentions JNDI and links to more detailed
documentation for various servlet containers and application servers.
In short:
1) configure a data source (connection pool) and expose it via JNDI,
using your servlet container or application server as described in the
documentation linked from that article;
2) modify any code you have that uses a data source (connection pool) to
obtain it from JNDI, using the code in that article
You don't need Struts2 to be able to do this for you, as there are
standard mechanisms you can use instead. Of course the prior reference
to Spring is a good one to look into since Spring provides all sorts of
help in configuring and using data sources and the database beneath them :-)
L.
RajiR wrote:
Hi,
In this link :
http://dev.mysql.com/tech-resources/articles/connection_pooling_with_connectorj.html,
we can preform connection pooling only after configuring it in our
configuration files.If it is in the case of struts1, struts-config.xml file
has a tag called <data-source/> and there we can configure.But,what about
struts2 how can we configure in its configuration file(struts.xml)?I think
only after configuring in the configuration file(for eg., struts.xml in the
case of struts2),we can use the connection pool using a java program as it
is explained in the link provided by you.So the problem is with how to
configure the pool in the struts.xml?I think I am clear...!!
Thanks.
Jeromy Evans - Blue Sky Minds wrote:
RajiR wrote:
Can't we implement connection pooling in struts2 alone?If so ,may I know
the
reason please...!!!
Thanks.
Struts 2 itself doesn't provide a connection pooling implementation and
probably shouldn't.
MySql provide a pooled DataSource that you can use immediately. Set it
up the same way as your current DataSource
http://dev.mysql.com/tech-resources/articles/connection_pooling_with_connectorj.html
Does that help?
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