Kann Java RMI Server und Client nicht starten

Question

Ich bin neu für Java RMI. Ich habe versucht, einfaches einfaches Beispiel Java RMI mit Eclipse zu starten. Aber ich kann den Server- und Client-Code nicht starten. Bitte hilf mir, dieses Problem zu lösen.

Server-Code: MyServer.java

package in.rmi.test; 
    import java.rmi.*; 
    public class MyServer { 
     public static void main(String args[]) { 
      try { 
       Adder stub = new AdderRemote(); 
       Naming.rebind("rmi://localhost:5000/sonoo", stub); 

      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
     }   
    } 

Adder.java

package in.rmi.test; 

    import java.rmi.*; 
    public interface Adder extends Remote{ 

    public int add(int x,int y)throws RemoteException; 
    } 

AdderRemote.java

package in.rmi.test; 
import java.rmi.*; 
import java.rmi.server.*; 

public class AdderRemote extends UnicastRemoteObject implements Adder{ 
    private static final long serialVersionUID = 1L; 

AdderRemote()throws RemoteException{ 
    super(); 
} 
public int add(int x,int y){ 
     return x+y; 
} 
} 

Ausnahme beim Start Server

java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
    java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
    java.lang.ClassNotFoundException: in.rmi.test.Adder 
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:420) 
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:271) 
    at sun.rmi.transport.Transport$2.run(Transport.java:202) 
    at sun.rmi.transport.Transport$2.run(Transport.java:199) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at sun.rmi.transport.Transport.serviceCall(Transport.java:198) 
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745) 
    at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:275) 
    at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:252) 
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:378) 
    at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source) 
    at java.rmi.Naming.rebind(Naming.java:177) 
    at in.rmi.test.MyServer.main(MyServer.java:11) 
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
    java.lang.ClassNotFoundException: in.rmi.test.Adder 
    at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source) 
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:410) 
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:271) 
    at sun.rmi.transport.Transport$2.run(Transport.java:202) 
    at sun.rmi.transport.Transport$2.run(Transport.java:199) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at sun.rmi.transport.Transport.serviceCall(Transport.java:198) 
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: java.lang.ClassNotFoundException: in.rmi.test.Adder 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366) 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425) 
    at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1206) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:278) 
    at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1219) 
    at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:729) 
    at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:673) 
    at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:610) 
    at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:646) 
    at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:311) 
    at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:265) 
    at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1566) 
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518) 
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1779) 
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353) 
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373) 
    ... 17 more 

MyClient.java

package in.rmi.test; 

import java.rmi.*; 

public class MyClient { 

    public static void main(String args[]) { 
     try { 

      System.setProperty("java.security.policy", "AllPermission.policy"); 
      System.setSecurityManager(new RMISecurityManager()); 
      Adder stub = (Adder) Naming.lookup("rmi://localhost:5000/sonoo"); 
      System.out.println(stub.add(34, 4)); 

     } catch (Exception e) { 
      System.out.println(e); 
     } 
    } 

} 

Answer 1

ich dieses Problem, indem beziehen den folgenden Link
http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/enhancements-7.html
http://www.math.uni-hamburg.de/doc/java/tutorial/rmi/running.html

gelöst

Starten RMI Registory wie wie folgt vor:

rmiregistry -J-Djava.rmi.server.codebase=file:///home/visva/Downloads/1/ 5000 & 

file: /// home/visva/Downloads/1/ - ist Classpath