Making the
Client, Calling a Remote Method
The
client is only slightly different in Web Services than it was in RMI.
- In RMI, we called Naming.lookup with a String that represented the server object with which we wanted to communicate. We casted the return object to the interface type that the server object implemented.
- In Web Services, we're provided with an Impl object, created by the mapping program.
- This is a factory class that has a method to create a stub to communicate with the Web Service on the server.
- This stub implements the same interface as the Web Service on the server.
- In other words....
- Starting the client is the same as RMI as well. You simply start the client as you would any other Java program.
chat = (Chat)Naming.lookup("rmi://localhost/ChatImpl");
Looks more like:
Chat chat = new ChatServiceImpl().getChat();
JAXR: The Java API for XML Registries