You can create web service clients in EJBs as easily as in anywhere else, it doesn't makes any difference for EJBs. You can do this by two methods: (a) Deployable Proxy and (b)Standalone Proxy.
Refer to the following help pages for a detailed solution,
First thing is create a Java project and in that create a standalone proxy for a web service. Now you will have all the proxy classes for using the web-service and calling its methods. Don't forget that since the web service is deployed in an external server you need to give the wsdl file for this. Now in this project, create a new class and try to call the methods of the web service. If that works fine, then create seperate methods in this class to access the webservice methods. This is so that other projects can call this class to in turn call the web service.
Then refer this project in you EJB project. Then you can call the methods of the class in your EJB that we created in the other project.
Can you just elaborate a bit more on how you wanna use this EJB from R/3, i mean how R/3 comes in the picture. That will help me provide you with an appropriate solution.
The solution is - you need to expose the EJB as a web service and call it from the R/3 system through an ABAP program. I have already told you how to expose an EJB as a web service, follow this link on how to call a web service from ABAP,
If you don't have an idea on how to expose an EJB as webservice, use the following tutorial,
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.