oracle weblogic v10.3 configure JNDI

Step 1: log on admin portal
Step 2: select menu 'Services' - 'JDBC' - 'Data Source' and click New button to create a new data source
Step 3 : specify jndi name ad database
Step 4 : click Next button to set transaction properties
Step 5 : define connection properties
 
Step 6 : test database connection
Step 7 : select target and click finish
It is possible that config.xml can not be updated beause the access is denied when you click finish button.
If such, right click the config.xml and select menu 'Properties' - tab 'Secuirty ' to grant permission
Befor testing the jndi, expand the 'Advanced' panel in the bottom of this page and ensure property
'Test Connection On Reserve' is enabled.
go to tab 'Monitoring' - sub tab 'Testing' to test jndi