The default Web Application is presented to clients who do not specify a URI (or specify "/" as the URI). To deploy a Web Application as a default Web Application, set the value of the context-root element to "/" in its deployment descriptor.You can specify the context-root element in the weblogic.xml deployment descriptor for Web Applications that are packaged as a .war archive or exploded .war directory.
If you package the Web Application as part of an Enterprise Application (.ear archive or exploded .ear), specify the context-root in application.xml. Note that the application.xml context-root takes precedent over the weblogic.xml value.
To test this:
Enter the URL in the browser after successfully configured as explianed above:
P.S: No need to mention the application name after /.