Java RMI NoSuchObjectException [英] Java RMI NoSuchObjectException

问题描述

我有一个使用Java RMI的服务器和客户端.如果我使用一个客户端，那么使用下面的代码就可以了.但是，如果我先连接一个客户端，然后再连接第二个客户端，则会抛出已在使用中的端口异常.很好，所以我断开连接的客户端的连接，然后尝试再次与第二个客户端连接.它给了我这个:

I have a server and client using Java RMI. If I use one client all is fine with the code below. But if I connect with a client and then a second one, it throws port already in use exception. That's fine, so I disconnect the connected client and then try to connect with the second client again. It gives me this:

java.rmi.NoSuchObjectException:表中没有此类对象

java.rmi.NoSuchObjectException: no such object in table

这是为什么?

//CONNECT

Registry registry = LocateRegistry.getRegistry(
    Options.getRegistryIp(), Options.getRegistryPort());
server = (IServer) registry.lookup(Constants.MB_SERVER_NAME);

UnicastRemoteObject.exportObject(client, Options.getMyPort());
server.registerClient(client);

//DISCONNECT

server.removeClient(client, client.getUser());
UnicastRemoteObject.unexportObject(client, false);

推荐答案

NoSuchObjectException意味着存根引用已显式或通过GC取消导出的远程对象.您是在lookup()还是registerClient()还是removeClient()上获取此信息的?

NoSuchObjectException means that the stub refers to a remote object which has been unexported, either explicitly or via GC. Are you getting this on the lookup(), or the registerClient(), or the removeClient()?

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