I suggest not involving Struts at all when it comes to configuration of and
access to data stores.
Write a ConnectionManager (sounds like you've already got that idea), who will
be in charge of Connections. In the ConnectionManager's init block or
constructor, look up your DataSource using a JNDI lookup based on the name you
used in your container's DataSource configuration file (in Tomcat this would
typically be your "context.xml" file, which is often called
"<my_app_name>.xml"), and cache the reference to the DataSource. Then provide a
static method (or a instance method on a singleton) for getting connections.
(Please note I didn't proofread this for errors)
DataSource ds;
. . .
InitialContext ic = new InitialContext();
Object o = ic.lookup("java:/comp/env/jdbc/MyDataSource");// "MyDataSource" was
specified in Tomcat file, "foo.xml"
ds = (DataSource) PortableRemoteObject.narrow(DataSource.class, o);
. . .
static getConnection() {
try {
return ds.getConnection();
}
catch (Exception e) {
//try using DriverManager
}
return null;
}
You probably already know all this, it's the same old fashioned J2EE way . . .
Erik
-----Original Message-----
From: Vijay K Anand <[EMAIL PROTECTED]>
Sent: Jul 8, 2005 3:47 AM
To: Struts Users Mailing List <[email protected]>
Subject: Database Connection
Hi All
I have a helper class which does creating connection and exception
handling for that . How do i create connection like
DataSource dataSource =
(DataSource)context.getAttribute(Action.DATA_SOURCE_KEY) ;
objConnection = datasource.getConnection();
it says error at context and Action.DATA_SOURCE_KEY
Any help brothers?
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
