这里面包含了一百多个JAVA源文件

				1. Define the remote interface. 
				    import java.rmi.*;
				    
				    public interface RObject extends Remote {
				        void aMethod() throws RemoteException;
				    }
				
				2. Define the remote object implementation. 
				    import java.rmi.*;
				    import java.rmi.server.UnicastRemoteObject;
				    
				    public class RObjectImpl extends UnicastRemoteObject implements RObject {
				        public RObjectImpl() throws RemoteException {
				            super();
				        }
				        public void aMethod() throws RemoteException {
				            // The actual exception must be wrapped in a RemoteException
				            throw new RemoteException("message", new FileNotFoundException("message"));
				        }
				    }
				
				3. Compile the remote object implementation. 
				    > javac RObject.java RObjectImpl.java
				
				4. Generate the skeletons and stubs. 
				    > rmic RObjectImpl
				
				
				5. Create an instance of the remote object and bind it to the RMI registry. 
				    try {
				        RObject robj = new RObjectImpl();
				        Naming.rebind("//localhost/RObjectServer", robj);
				    } catch (MalformedURLException e) {
				    } catch (UnknownHostException e) {
				    } catch (RemoteException e) {
				    }
				
				6. Look up the remote object, invoke the method, and catch the exception. 
				    try {
				        // Look up the remote object.
				        RObject robj = (RObject) Naming.lookup("//localhost/RObjectServer");
				    
				        // Invoke the method.
				        robj.aMethod();
				    } catch (MalformedURLException e) {
				    } catch (UnknownHostException e) {
				    } catch (NotBoundException e) {
				    } catch (RemoteException e) {
				        // Get the actual exception that was thrown.
				        Throwable realException = e.detail;
				    }