Spring RMI服务器和纯Java RMI客户端

Question

I have two peers to connect though RMI. At the RMI server side I am using Spring inerfaces ( http://www.studytrails.com/frameworks/spring/spring-remoting-rmi.jsp ). At the RMI client side I need to start it with out know if the server is UP. So if I use spring my client does not start and I have connection refused exception.

<bean class="org.springframework.remoting.rmi.RmiServiceExporter">
        <property name="serviceName" value="RestoreRMIService" />
        <property name="serviceInterface" value="br.com.eb.service.iscsi.RestoreService" />
        <property name="service" ref="restoreService" />
    </bean>

So I tried to use pure java RMI on the client side ( http://www.javacoffeebreak.com/articles/javarmi/javarmi.html ). But I am getting ClassCastException: com.sun.proxy.$Proxy73 cannot be cast to br.com.eb.service.iscsi.RestoreService. I beliave because I don't have stubs from my RMI server.

I wnat pure java RMI on the client side because I need to be able to restart the server side.

protected void connectRMI() {
        if (!rmiConected) {
            try {
                Registry registry = LocateRegistry.getRegistry(1099);
                serviceRestore = (RestoreService) registry.lookup("RestoreRMIService");
                // serviceRestore = (RestoreService) Naming.lookup("rmi://127.0.0.1/RestoreRMIService");
                rmiConected = true;
            } catch (ConnectException ce) {
                System.err.println("Error: server not started");
                rmiConected = false;
            } catch (ConnectIOException cioe) {
                System.err.println("Error: Cannot connect to server at 127.0.0.1");
                rmiConected = false;
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

Answer 1

• You don't need to switch RMI implementations just to solve a 'connection refused' exception.
• Java RMI gets 'connection refused' exceptions too.

• Java RMI and Spring RMI do not interoperate.

  Your question doesnt make sense.