Java RMI HelloWorld

package demo2;

?

import java.rmi.Naming;

import java.rmi.RemoteException;

import java.rmi.registry.LocateRegistry;

import java.rmi.server.UnicastRemoteObject;

?

publicclassRemoteEchoServerextends UnicastRemoteObject implements RemoteEcho {

?

????PRotected RemoteEchoServer() throws RemoteException {

????????super();

????}

?

????@Override

????public Object echo(Object object) throws RemoteException {

????????returnobject;

????}

?

????publicstaticvoid main(String[] args) throws Exception {

????????RemoteEchoServer server = new RemoteEchoServer();

????????LocateRegistry.createRegistry(6600);

????????Naming.rebind("rmi://127.0.0.1:6600/RemoteEchoServer", server);

????}

?

}

package demo2;

?

import java.rmi.Remote;

import java.rmi.RemoteException;

?

publicinterfaceRemoteEchoextends Remote {

????Object echo(Object object) throws RemoteException;

}

package demo2;

?

import java.rmi.Naming;

?

publicclass RemoteEchoFactory {

?

????publicstatic RemoteEcho getEcho() throws Exception {

????????return (RemoteEcho) Naming.lookup("rmi://127.0.0.1:6600/RemoteEchoServer");

????}

}

package demo2;

?

publicclass RemoteEchoClient {

????publicstaticvoid main(String[] args) throws Exception {

????????longstart = System.currentTimeMillis();

????????RemoteEcho echo = RemoteEchoFactory.getEcho();

????????System.out.println(echo.echo("kiss u"));

????????System.out.println(System.currentTimeMillis()-start);

????}

}