Question

我在做这个教程：http://www.youtube.com/watch?v=vkw275ptI3E 这是一个java rmi教程（客户端，服务器）但他在本地尝试这个，它不能在我的电脑上工作

当我尝试在本地激活我的服务器时，我收到了这条消息：

java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
    java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
    java.lang.ClassNotFoundException: simple.rmi.server.MyServer_Stub
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:400)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:248)
    at sun.rmi.transport.Transport$1.run(Transport.java:159)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:680)
    at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
    at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:359)
    at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
    at simple.rmi.server.MyServer.main(MyServer.java:33)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
    java.lang.ClassNotFoundException: simple.rmi.server.MyServer_Stub
    at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:390)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:248)
    at sun.rmi.transport.Transport$1.run(Transport.java:159)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.ClassNotFoundException: simple.rmi.server.MyServer_Stub
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1185)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:249)
    at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1198)
    at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:433)
    at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:164)
    at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
    at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
    at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:201)
    at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1589)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1494)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1748)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
    ... 12 more

我该怎么办？

Answer 1

最近的JDK版本中发生了一些不兼容的更改，导致旧的RMI教程无法正常工作。特别是，JDK 7u21现在要求您在客户端和注册表以及服务器上设置codebase属性。截屏视频仅显示服务器上的设置。

截屏视频（或者可能是Eclipse插件）也过时了，因为它显示了存根的生成。没有必要使用任何工具（如rmic或Eclipse插件）来生成存根，因为自Java SE 5（2002年发布）以来，存根已自动生成存根。

Java RMI服务器问题

1 个答案: