The most common way of using web services in an application is to create a data control for an external web service. A typical reason for doing this is to add functionality that is readily available as a web service, but which would be time consuming to develop with the application, or to access an application that runs on a different architecture.
JDeveloper allows you to create a data control for an existing web service using just the WSDL for the service. To begin, you will create a new project in the application by clicking Application Menu, and selecting New Project .
Alternatively, you can choose File New to open the New Gallery, and then select the Generic Project item from the General category.
To create a web service data control in the new project, you will launch the Create Web Service Data Control wizard from the New Gallery by expanding Business Tier in the Categories tree, selecting Web Services and then Web Service Data Control in the Items list.
In the wizard, you will will reference the WSDL URL that JDeveloper automatically generated when you tested the web service:
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