How do I get the weblogic port # programmatically?

Question

I'm writing a class that uses JND to lookup a data source. I don't want to harcode the port number for the provider URL. The code will run in many different environments where the port numbers are different. A configuration file is not pratical. Since the provider URL is always the URL of the weblogic host I'd like to programmatically retrieve the port number that weblogic is listening and use that. Any ideas?

Answer 1

Hi,
Yes you can get the port number from your applications web.xml file. Define a new env-entry like one similiar below
<env-entry>
<env-entry-name>T3SERVER</env-entry-name>
<env-entry-value>t3://<<Servername>>:7501</env-entry-value>
<env-entry-type>java.lang.String</env-entry-type>
</env-entry>
and in your source code you can access the above property by obtaining initial context and doing a look up for the property name. A sample code would look like
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
strServerUrl = (String) envCtx.lookup("T3SERVER");
Hope this helps
-Jagan
-Jagan