【问题标题】:RMI app throwing error while running from terminal but working ok with eclipseRMI 应用程序在从终端运行时抛出错误,但与 Eclipse 一起工作正常
【发布时间】:2013-06-02 09:21:15
【问题描述】:

我正在尝试使用 java RMI 开发一个聊天应用程序,其中多个客户端可以相互交互。问题是,代码运行良好,至少到目前为止,在 Eclipse 中,但是当我使用 rmic 之后的标准程序从终端尝试它时,启动 rmiregistry 并启动服务器,然后启动客户端,它会抛出一长串 ChatServer_stub.class ClassNotFoundException。 ChatServer_stub.class 在那里,我的意思是我不能在不使用 rmic 创建存根的情况下启动服务器。有任何想法吗???我认为这个问题与代码无关,因为它与 eclipse 一起使用,所以我在这里只粘贴错误。 以防万一..这里是代码:https://github.com/kumarsaurabh20/Programming_Test/tree/master/network_prog_Java/RMIChatApp/src

 Registry is created..
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
java.lang.ClassNotFoundException: ChatServer_Stub
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:419)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:273)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:251)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:377)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at ChatServer.rebindChatServer(ChatServer.java:47)
at ChatServer.main(ChatServer.java:98)
    Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
java.lang.ClassNotFoundException: ChatServer_Stub
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:409)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
    Caused by: java.lang.ClassNotFoundException: ChatServer_Stub
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:266)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:451)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:182)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:637)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:264)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:220)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1609)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1514)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1768)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
... 12 more

【问题讨论】:

    标签: java client-server rmi classnotfoundexception


    【解决方案1】:

    我想答案就在这里:http://docs.oracle.com/javase/6/docs/technotes/guides/rmi/codebase.html

    在这篇文章中发现了一个类似的问题,并提供了一个很好解释的解决方案: running rmi server, classnotfound

    感谢 A. 征费

    【讨论】:

      【解决方案2】:

      注册表的 CLASSPATH 中没有存根。要么启动注册表,要么使用代码库功能。

      【讨论】:

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