Spring RMI 服务器在 ClassNotFoundException 上失败：RmiInvocationHandler

Question

我正在使用 spring rmi（版本 3.2.1）并尝试连接到远程 rmiregistry（“远程”在它没有嵌入的意义上，rmi 注册表在同一个节点上运行，但作为不同的进程）。

尝试启动 rmi 服务器时出现此错误：

java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: org.springframework.remoting.rmi.RmiInvocationHand ler
at sun.rmi.server.UnicastServerRef.oldDispatch(Unicas tServerRef.java:419)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastSe rverRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:1 77)
at sun.rmi.transport.Transport$1.run(Transport.java:1 74)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport. java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages( TCPTransport.java:556)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandl er.run0(TCPTransport.java:811)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandl er.run(TCPTransport.java:670)
at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
at sun.rmi.transport.StreamRemoteCall.exceptionReceiv edFromServer(StreamRemoteCall.java:275)
at sun.rmi.transport.StreamRemoteCall.executeCall(Str eamRemoteCall.java:252)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:3 78)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at org.springframework.remoting.rmi.RmiServiceExporte r.prepare(RmiServiceExporter.java:291)

Answer 1

rmi 注册表无法访问 spring rmi 类。 (RmiInvocationHandler)。

你有两个选择：

• 使用代码库属性启用动态类下载：请参阅：http://docs.oracle.com/javase/6/docs/technotes/guides/rmi/codebase.html

• 使用 CLASSPATH 授予访问权限：只允许 rmi 注册表使用它在启动时需要的所有类。例如：

  导出 CLASSPATH=lib/spring-core-XXX.RELEASE.jar:lib/spring-context-XXX.RELEASE.jar:lib/your-other-classes-used-in-rmi.jar

  rmiregistry