【发布时间】：2016-11-06 10:40:43
【问题描述】：
对于可能是一个明显的问题，我提前道歉，但我整天都在努力让它工作，但我不知道如何让它工作。简而言之：我的 RMIregistry 找不到我的 RMI 服务器应用程序的接口类。
我正在使用这些参数通过 Eclipse 运行 rmiregistry.exe：
1234 -J-Djava.rmi.server.useCodebaseOnly=false
我得到了以下 RMI 服务器：
package es.test.innova.pruebas.test;
import java.io.File;
import java.rmi.Naming;
import java.rmi.RMISecurityManager;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
public class TestImpl extends UnicastRemoteObject implements Test
{
public TestImpl() throws RemoteException {}
public static void main(String args[])
{
try
{
if (System.getSecurityManager() == null) {
System.setSecurityManager(new RMISecurityManager());
}
TestImpl obj = new TestImpl();
Naming.rebind("rmi://localhost:1234/Test",obj);
System.out.println("Connected to registry!");
}
catch (Exception e)
{
System.out.println("HelloImpl err: " + e.getMessage());
e.printStackTrace();
}
}
@Override
public String validate(File f) throws RemoteException {
return "hello world";
}
}
然后我使用这些参数运行：
-Djava.security.policy=C:\D\RMI\policy.all -Djava.rmi.server.codebase=file:/C:/D/Proyectos/Firma/validarfirma/
引用的策略文件是这样的：
grant {
permission java.security.AllPermission "", "";
};
codebase 参数引用了项目的文件夹，我也尝试将其指向文件夹的 bin 文件夹，甚至直接指向 .class 文件，如本网站其他答案中所述。
无论我尝试什么，我都会不断收到此错误：
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
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 sun.rmi.transport.Transport$1.run(Transport.java:174)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:556)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:811)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:670)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:275)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:252)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:378)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at es.test.innova.pruebas.test.TestImpl.main(TestImpl.java:25)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
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 sun.rmi.transport.Transport$1.run(Transport.java:174)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:556)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:811)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:670)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1206)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1219)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:729)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:673)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:610)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:646)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:311)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:255)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1556)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1512)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1769)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
... 13 more
HelloImpl err: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
找不到类。我试过手动运行所有东西而不是使用 Eclipse，直接从 .class 文件夹运行 rmi，将服务器编译为 .jar 并使用它来代替......当然，我已经摆弄了一堆代码库参数。我已经尝试了我能想到的一切，但我被卡住了。
问题是我必须设置错误的代码库或类似的东西，但我不知道如何。注册表只是找不到我的课程。
如果有人能在这里帮助我，我将不胜感激。感谢阅读。
【问题讨论】：
-
你有一个叫Test的接口和TestImpl在同一个包里吗？