简单rmi示例

• User类

         注意:需要实现序列化

package study.rmi.server;

import java.io.Serializable;

public class User implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    
    
}

---

• 接口类

package study.rmi.server;

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

public interface HelloRemote extends Remote{
    
    String sayHello(User user) throws RemoteException;
}

---

• 接口实现类

package study.rmi.server;

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

public class HelloRemoteImpl extends UnicastRemoteObject implements HelloRemote {

    private static final long serialVersionUID = 1L;
    
    protected HelloRemoteImpl() throws RemoteException {
        super();
    }    

    @Override
    public String sayHello(User user) throws RemoteException {
        return "hello," + user.getName();
    }

}

---

• rmi服务端类 

package study.rmi.server;

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

public class RemoteServer {

    public static void main(String[] args) {
        try {
            LocateRegistry.createRegistry(6666);
            HelloRemote server = new HelloRemoteImpl();
            Naming.rebind("//127.0.0.1:6666/HelloRemote", server);
            System.out.println("服务端启动");
        } catch (RemoteException e) {
            e.printStackTrace();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
    }

}

---

• 客户端类

package study.rmi.client;

import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import study.rmi.server.HelloRemote;
import study.rmi.server.User;

public class RMIClient {

    public static void main(String[] args) {
        String url = "//127.0.0.1:6666/HelloRemote";
        try {
            HelloRemote helloRemote = (HelloRemote) Naming.lookup(url);
            User user = new User();
            user.setName("zs");
            System.out.println(helloRemote.sayHello(user));
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (RemoteException e) {
            e.printStackTrace();
        } catch (NotBoundException e) {
            e.printStackTrace();
        }
        
    }
}

        可以看看下面介绍java rmi的文章：

        http://haolloyin.blog.51cto.com/1177454/332426/

        http://www.blogjava.net/orangelizq/archive/2007/12/01/164541.html