In other word "How to obtain a remote connection to a DataSource in Weblogic Server"
1. Standard way to obtain a connection from a local server on web appliation
1.1 Define the DataSource name in web.xml file as follow:
<resource-ref> <description>Oracle Datasource example</description> <res-ref-name>jdbc/testDS</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref>
1.2 In Java class you lookup for the DataSource as follow:
String dataSourceName = "jdbc/testDS" Context initialContext = new InitialContext(); DataSource dataSource = (DataSource) initialContext.lookup("java:comp/env/" + dataSourceName); connection = dataSource.getConnection();
2. Obtain a REMOTE connection from a local server on web application
2.1. No need to define anything on web.xml file
2.2. In Java class you look for the DataSource as follow:
String dataSourceName = "jdbc/testDS" Context initialContext = new InitialContext(); Properties env = new Properties(); env.put("java.naming.factory.initial", "weblogic.jndi.WLInitialContextFactory"); env.put("java.naming.provider.url", "t3://localhost:7001"); DataSource dataSource = (DataSource) initialContext.lookup(dataSourceName); connection = dataSource.getConnection();
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