有关RMI简单的HelloWorld问题

来源：百度知道 编辑：UC知道 时间：2024/05/29 05:30:08
以下是源代码，来自JDK帮助的简易教程。
---------Hello.java--------------------
package rmi;

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

public interface Hello extends Remote {
String sayHello() throws RemoteException;
}

---------Server.java--------------------

package rmi;

import java.rmi.registry.Registry;
import java.rmi.registry.LocateRegistry;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;

public class Server implements Hello {

public Server() {}

public String sayHello() {
return "Hello, world!";
}

public static void main(String args[]) {

try {
Server obj = new Server();
Hello stub = (Hello) UnicastRemoteObject.exportObject(obj,0);

// Bind the remote object's stub in the registry
Regis

首先在server端需要一个接口，继承自java.rmi.Remote

public interface Hello extends Remote {

public String say() throws RemoteException;
}

其次实现这个接口并继承java.rmi.server.UnicastRemoteObject
public class SayHello extends UnicastRemoteObject implements Hello{

protected SayHello() throws RemoteException{
super();
}
public String say() throws RemoteException {
return "Hello";
}
}

接着注册服务，绑定端口

public class Reg {
public static void main(String[] args) throws RemoteException,MalformedURLException{
LocateRegistry.createRegistry(1099);
SayHello sh = new SayHello();
Naming.rebind("rmi://localhost:1099/sh", sh);
System.out.println("注册完毕");
}
}

然后在客户端
public class Client {
public static void main(String[] args) throws RemoteException,MalformedURLException,NotBoundException{
Hello h = (Hello)Naming.lo