RMI异常,java.rmi.ConnectException: Connection refused to host

[code="java"] String name = "Compute";
HelloWorldCompute engine = new HelloWorldEngine();
HelloWorldCompute stub = (HelloWorldCompute) UnicastRemoteObject.exportObject(engine, 8888);
Registry registry = LocateRegistry.getRegistry();
registry.rebind(name, stub);[/code]

执行最后一句,抛出异常
java.rmi.ConnectException: Connection refused to host: 10.200.1.184; nested exception is:
java.net.ConnectException: Connection refused: connect

什么原因啊

http://bbs.csdn.net/topics/390193904
看看 下