设置简单的RMI服务器时出现问题

| 我在设置一个简单的RMI服务器时遇到问题，并且想知道是否有人可以向我指出正确的方向。 我有一个简单的类Server，应该导出一个简单的接口。当前，当我尝试运行服务器类时，出现以下异常： 
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
java.lang.ClassNotFoundException: prototype.ISimpleService
我已经通过运行\“ start rmiregistry \”命令确保rmi注册表正在运行，并且我正在使用以下参数运行服务 
-Djava.rmi.server.codebase=file:C:/Users/John/Documents/NetBeansProjects/Prototype/build/classes
上面参数中的路径指向我的类层次结构的顶层文件夹，因此： /班 /原型 -> ISimpleService.class -> SimpleServiceImpl.class -> IServer.class 这是我的服务器代码： 
public class Server
{
    private static ISimpleService service;

    public static void main(String[] args)
    {
        service = new SimpleServiceImpl();

        try
        {
            ISimpleService stub = (ISimpleService) UnicastRemoteObject.exportObject(service, 0);

            Registry registry = LocateRegistry.getRegistry();

            registry.rebind(\"SimpleService\", stub);

            System.out.println(\"Simple Service bound\");
        } 
        catch (Exception ex)
        {
            System.out.println(\"Exception binding the simple service\");
            ex.printStackTrace();
        }
    }
}
尽管我没有使用不需要的安全性/权限，但我已经研究了Java RMI跟踪，并按照我的简单示例进行了调整，因为我之前没有使用RMI示例就可以使用它。 因此，我相信我必须错过一些简单的东西（没有双关语），才能完成这项工作，但目前我什么都看不到。 有人有想法吗？ 这是完整的堆栈跟踪： 
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
    java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
    java.lang.ClassNotFoundException: prototype.ISimpleService
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:396)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
    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:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
    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.rebind(Unknown Source)
    at prototype.Server.main(Server.java:35)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
    java.lang.ClassNotFoundException: prototype.ISimpleService
    at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:386)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
    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:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: prototype.ISimpleService
    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:307)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:247)
    at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:711)
    at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:655)
    at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:592)
    at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628)
    at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294)
    at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238)
    at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1530)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1492)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
    ... 12 more
    
2020-02-24 3 条评论
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没有找到相关结果

    已邀请:

    掀辟髓观粟

            我已经解决了这个问题。。。虽然花了我比预期更长的时间:( 原来，当您像我一样使用代码库参数时，如果要指向目录，则应在末尾放置一个\ /。一旦添加，服务器便成功绑定。 有关此p的资源，请参见http://download.oracle.com/javase/1.4.2/docs/guide/rmi/codebase.html#section6     
    2020-02-24 0 0
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    稍惮

            似乎
    prototype.ISimpleService
    不在您的类路径中。 尝试： 
    java -cp=C:/Users/John/Documents/NetBeansProjects/Prototype/build/classes;C:/Users/John/Documents/NetBeansProjects/Server/build/classes Server
        
    2020-02-24 0 0
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