java.rmi.ServerException: RemoteException occurred in server thread java.lang.ClassNotFoundException

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java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:        java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:        java.lang.ClassNotFoundException: compute.Compute

在根据http://docs.oracle.com/javase/tutorial/rmi/running.html学习RIM，不过在启动server的时候老是报如上的错误

官方文档的命令行命令有误：

c:\home\ann\src>start rmiregistry  -J-Djava.rmi.server.codebase=file:///c:/home/ann/public_html/classes/compute.jar

c:\home\ann\src>java -cp c:\home\ann\src;c:\home\ann\public_html\classes\compute.jar  -Djava.rmi.server.codebase=file:///c:/home/ann/public_html/classes/compute.jar  -Djava.rmi.server.hostname=localhost  -Djava.security.policy=server.policy engine.ComputeEngineComputeEngine bound

现在是服务端可以启动了，但是客户端却总是报错误

c:\home\ann\src>start rmiregistry  -J-Djava.rmi.server.useCodebaseOnly=false

c:\home\ann\src>java -cp c:\home\ann\src;c:\home\ann\public_html\classes\compute.jar  -Djava.rmi.server.useCodebaseOnly=false -Djava.rmi.server.codebase=file:///c:/home/ann/public_html/classes/compute.jar  -Djava.rmi.server.hostname=localhost  -Djava.security.policy=server.policy  engine.ComputeEngine

c:\home\jones\src>java -cp  c:\home\jones\src;c:\home\jones\public_html\classes\compute.jar -Djava.rmi.server.codebase=file:/c:/home/jones/public_html/classes/ -Djava.security.policy=client.policy client.ComputePi 127.0.0.1 45

完整源代码：http://www.kuaipan.cn/file/id_122162699692933140.htm?source=1

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