Sharing Portal database connection with JSP page

Hi out there,
I implemented a JSP page as a selection form to be integrated into Oracle Portal. This JSP page contains a 'dynamic' form which needs to send queries to the database also integrated in the Portal.
For this I am currently using a JDBC connection but I would prefer to use the internal db connection of the Portal System.
Explanation: The user has to log in to the Portal and after that can call the JSP form. To poulate some comboboxes within this form I need some data from the database and the user does have READING privileges on that database.
Can anybody tell me how to use the user's login and password (or the established connection) to fetch the needed data from the database OTHER than with a jdbc connection?
Thanx in advance!
Cheers,
Thomas

sorry. not going to happen. you're running in a completely different environment when running Java on Portal. Portal is running in the database; your Java is running on the application server. your Java code must use JDBC to access any database resources, even if Portal related.
it is essential that you implement a connection pool on the application server to optimize your database traffic. check out bitmechanic for a very good open source option.
good luck,
rich

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package Try;
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<description>
</description>
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<attribute>
<name>scope</name>
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<description>
</description>
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<%@ taglib uri="/WEB-INF/lib.tld" prefix="db" %>
<html>
<body>
<db:connect username="root" password="203131" database="compose" />
</body>
</html>

Answered in your other post:
http://forum.java.sun.com/thread.jspa?threadID=608780&tstart=0

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