Creating a Web Service with JAX-RPC

 

These are the basic steps for creating the service:

1. Code the service endpoint interface and implementation class.

A service endpoint interface must conform to a few rules: • It extends the java.rmi.Remote interface. • It must not have constant declarations, such as public final static. • The methods must throw the java.rmi.RemoteException or one of its subclasses. (The methods may also throw service-specific exceptions.) • Method parameters and return types must be supported JAX-RPC types. See the section Types Supported By JAX-RPC (page 456). In this example, the service endpoint interface is HelloIF.java: package helloservice; import java.rmi.Remote; import java.rmi.RemoteException; public interface HelloIF extends Remote { public String sayHello(String s) throws RemoteException; }

 

In addition to the interface, you’ll need the class that implements the interface. In this example, the implementation class is called HelloImpl: package helloservice; public class HelloImpl implements HelloIF { public String message =“Hello“; public String sayHello(String s) { return message + s; } }

2. Build, generate, and package the files required by the service.

The process includes below steps:

• compile-service

• generate-sei-service

• package-service

• process-war

3. Deploy the WAR filethat contains the service.