How to create a properties file for DB connection (BPEL async processes)

Hi,
In BPEL asynchronouns Project, I am trying to create the Database connection. Instead of hardcoding the details, I want to put it in the properties file and then import the connection file in order to create a connection.
I am very new to BPEL and need urgent help. Hoping for a quick reply..
Thanks

So, what would be the practical approach for implemeting this. When I use "Import Connections" option, in help I get this:
"File Name:
Click Browse to locate a file containing the connection descriptor(s) that you want to import. Select the file and click Open. Connection descriptors are saved to XML files. The recommended file extension is .xml. You can import connections from previous versions of JDeveloper by importing connections from IDEConnnections.properties in the earlier installation. You can import connections from other versions of JDeveloper by importing connections from IDEConnnections.xml. "
Please suggest.

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