rmiの使い方

package interview.rmi;

import java.rmi.Remote;
import java.rmi.RemoteException;

/**
 *  1 ：      ，    ：          
 */
public interface HelloInterface extends Remote
{
	public String sayHello() throws RemoteException;
}


package interview.rmi;

import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;

/**
 *  2 ：     ，         
 *   ：  UnicaseRemoteObject       
 * 
 * 
 */
public class HelloImpl extends UnicastRemoteObject implements HelloInterface
{
	public HelloImpl() throws RemoteException
	{
		super();
	}

	public String sayHello() throws RemoteException
	{
		return "hllo";
	}
}
package interview.rmi;

import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;

/**
 *    ：    
 * 
 * 
 */
public class RMIServer
{
	public static void main(String[] args) throws RemoteException,
			MalformedURLException
	{
		//      rmiregistry 
		LocateRegistry.createRegistry(1099);
		HelloInterface hello = new HelloImpl();

		//     
		Naming.rebind("//localhost/hello", hello);
	}
}
package interview.rmi;

import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;

/**
 *    ：    
 * 
 * 
 */
public class RMIClient
{
	public static void main(String[] args) throws MalformedURLException,
			RemoteException, NotBoundException
	{
		HelloInterface hello = (HelloInterface) Naming
				.lookup("//localhost/hello");

		System.out.println(hello.sayHello());
	}
}