Java RMI 和 RPC 有什么区别

Java RMI 和 RPC 的区别

java
// 定义一个远程接口
public interface RemoteService extends Remote {
    public String sayHello() throws RemoteException;
}
// 实现远程接口
public class RemoteServiceImpl extends UnicastRemoteObject implements RemoteService {
    public RemoteServiceImpl() throws RemoteException {
        super();
    }
    
    public String sayHello() throws RemoteException {
        return "Hello, world!";
    }
}
// 服务器端
public class Server {
    public static void main(String[] args) {
        try {
            RemoteService service = new RemoteServiceImpl();
            Naming.rebind("rmi://localhost/RemoteService", service);
            System.out.println("Server started.");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
// 客户端
public class Client {
    public static void main(String[] args) {
        try {
            RemoteService service = (RemoteService) Naming.lookup("rmi://localhost/RemoteService");
            String result = service.sayHello();
            System.out.println(result);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}