1) 在config.xml文件中，定义一个 JDBCDataSourceFactory：

....
<JDBCDataSourceFactory DriverClassName="oracle.jdbc.driver.OracleDriver" 
FactoryName="JustAFactory" Name="JustAFactoryName" 
Properties="user=scott;password=tiger;dll=ocijdbc8;protocol=thin" 
URL="jdbc:oracle:thin:@host:1521:sid" UserName="scott" /> 
</Domain> 

2)在weblogic-application.xml文件中，定义jdbc-connection-pool：
...
<jdbc-connection-pool> 
<data-source-name>jdbc.ADataSource</data-source-name> 
<connection-factory> 
<factory-name>JustAFactory</factory-name> 
<connection-properties> 
<url>jdbc:oracle:thin:@host:1521:sid</url> 
<driver-class-name>oracle.jdbc.driver.OracleDriver</driver-class-name> 
<connection-params> 
<parameter> 
<param-name>user</param-name> 
<param-value>scott</param-value> 
</parameter> 
<parameter> 
<param-name>password</param-name> 
<param-value>tiger</param-value> 
</parameter> 
<parameter> 
<param-name>dll</param-name> 
<param-value>ocijdbc8</param-value> 
</parameter> 
<parameter> 
<param-name>protocol</param-name> 
<param-value>thin</param-value> 
</parameter> 
</connection-params> 
</connection-properties> 
</connection-factory> 
</jdbc-connection-pool> 
</weblogic-application>