When you and your business partners agree on a "contract" in the form of a WSDL file, you can use the IDE to implement it. The WSDL file is an agreement on the data and messages that will be exchanged as well as how these messages will be sent and received. In the IDE, you can use the WSDL file to implement the web service.
Business requirements may demand that you create a platform-independent description of a web service as a set of XML schema files and WSDL files. Based on this platform-independent description, you can use the steps that follow to generate the implementation files. The WSDL file that you use in the steps below can either be available on disk or via a URL.
To create a web service from a WSDL file:
The New Web Service from WSDL wizard opens.
The IDE runs the wsimport tool, which reads the WSDL file and generates all the required artifacts for web service development, deployment, and invocation. Finally, the IDE generates the skeleton implementation class, which corresponds to the WSDL port selected in the wizard.