09
Mar

To use a data source in WLS (e.g. to benefit from the built-in connection pooling, XA transactions etc.) you have to configure it from the WLS admin console.
Prior to this post, we installed the Oracle DB and Oracle WLS.

  1. start the admin console, e.g. http://localhost:7001/console
  2. in the left tree menu named ‘Domain Structure’ go to ‘Services’ -> ‘JDBC’ -> ‘Data Sources’
  3. click ‘New’ and enter your data:
    • name:     mh_JDBC_DS_orcl (just a unique name in WLS to identify your ds)
    • JNDI Name:     jdbc/mh_orcl
    • Database Type:    Oracle
    • Database Driver:     oracle.jdbc.xa.client.OracleXADataSource (use the XA version if your App participates in global/distributed transactions)
    • Database Name:     orcl (the name you specified in the db installation)
    • Host Name:     localhost (or your IP where the db listens)
    • Port:     1521 (port where the db listens)
    • Database User Name:  mh (user to login)
    • Password:     <pwd>
    • under ‘Targets’: check the server, e.g. ‘AdminServer’ where you want to use this ds
  4. You can explore your settings also on the file system:
    • C:\Oracle\Middleware\user_projects\domains\mh_domain\config\jdbc\mh_JDBC_DS_orcl-5723-jdbc.xml, and an entry to this file in
    • C:\Oracle\Middleware\user_projects\domains\mh_domain\config\config.xml

Alternatively, if you need to make multiple installations/configurations, there is the possibility to use the silent installation and WLST (WebLogic Scripting Tool).

Now you can call the ds in your application via JNDI or if you use JPA you need to specify the JNDI name in persistence.xml.

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