RMIアプリケーション

import java.rmi.Remote;
import java.rmi.RemoteException;
import java.util.Date;

/**
 * Description:<br>
 * 1.      ，  java.rmi.Remote  
 * 2.     ，      
 * 3.        ：   rmiregistry          
 * 4.       ：        ，          
 * @author JOJO
 * @version 0.1
 */
public interface HelloService extends Remote
{
 
    public String echo (String msg) throws RemoteException;

    public Date getTime () throws RemoteException;
}

 

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

public class HelloServiceImpl extends UnicastRemoteObject implements HelloService
{

    private String            name;

    protected HelloServiceImpl(String name) throws RemoteException
    {
        this.name = name;

        /*
         * UnicastRemoteObject           exportObject(Remote obj,int port)。
         *         obj            ，         ，                    。
         *   port       。              ，            UnicastRemoteObject 
         *     exportObject(Remote obj,int port)。
         */
        // UnicastRemoteObject.exportObject(this, 0);
    }

    public String echo (String msg) throws RemoteException
    {
        System.out.println(name + ":  echo()  。");
        return "echo:" + msg + " from " + name;
    }

    public Date getTime () throws RemoteException
    {
        System.out.println(name + "  getTime()  。");
        return new Date();
    }

}

 

import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;

/**
 * Description:<br>
 * @author JOJO
 * @version 0.1
 */
public class SimpleServer
{
    public static void main (String[] args)
    {
        try
        {
            HelloService service1 = new HelloServiceImpl("service1");
            HelloService service2 = new HelloServiceImpl("service2");
            //          port           Registry   。
            Registry registry = LocateRegistry.createRegistry(1099);
            registry.rebind("HelloService1", service1);
            registry.rebind("HelloService2", service2);
            System.out.println("        HelloService  。");
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}

 

import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;

/**
 * Description:<br>
 * 
 * @author JOJO
 * @version 0.1
 */
public class SimpleClient
{

    public static void main (String[] args)
    {
        try
        {
            //       host   port        Registry    。
            Registry registry = LocateRegistry.getRegistry("127.0.0.1", 1099);
            HelloService service1 = (HelloService) registry.lookup("HelloService1");
            HelloService service2 = (HelloService) registry.lookup("HelloService2");

            System.out.println(service1.echo("hello"));
            System.out.println(service2.getTime());
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

    }
}