Question

Im having trouble mapping a Weblogic (12c) defined JNDI Datasource to a local jndi name.

I have a datasource in weblogic mysql datasource defined as “mysqltestds”, and I want to map i within a web application to a local name “localds”

My web.xml properties are

<resource-ref>
   <res-ref-name>localds</res-ref-name>
   <res-type>javax.sql.DataSource</res-type>
   <res-auth>Container</res-auth>
</resource-ref>

with the weblogic.xml

<weblogic-web-app>
   <resource-description>
      <res-ref-name>localds</res-ref-name>
      <jndi-name>mysqltestds</jndi-name>lls
   </resource-description>
</weblogic-web-app>

When I get the datasource using the global name “mysqltestds” it works correctly.

Context initialContext = new InitialContext();
Object resource = initialContext.lookup("mysqltestds");
dataSource = (DataSource) resource; 

However, when I try “localds” it fails with the error:

Context initialContext = new InitialContext();
Object resource = initialContext.lookup("localds");
dataSource = (DataSource) resource; 

javax.naming.NameNotFoundException: Unable to resolve ‘localds’. Resolved ”; remaining name ‘localds’

Can anyone help. I followed the directions in this stackOverflow question Tomcat vs Weblogic JNDI Lookup , but I haven’t had any success.

Answer 1

I ended up working this out by trial and error.

It seems when you are using a local resource reference, you have to refer to it using the “java:comp/env/..” prefix, so my java code worked when I made the following changes:

Context initialContext = new InitialContext();
Object resource = initialContext.lookup("java:comp/env/localds");
dataSource = (DataSource) resource; 

Hope this is useful if anyone else is having similar problems