无法建立RMI连接到远程计算机 [英] Cannot establish RMI connection to remote machine

问题描述

我似乎无法连接使用RMI的2台机器。为了确保有没有什么毛病我的code我复制从维基百科的简单例子（ HTTP： //en.wikipedia.org/wiki/Java_remote_method_invocation ），我编辑的code打印出一个简单的int。

I can't seem to connect 2 machines using RMI. To make sure there wasn't something wrong with my code I copied the simple example from wikipedia (http://en.wikipedia.org/wiki/Java_remote_method_invocation) and I edited the code to print out a simple int.

我想给所有的权限，并把所有的防火墙关闭，我仍然得到这个错误：

I tried giving all permissions and turning all the firewalls off and I still get this error:

java.rmi.ConnectException: Connection refused to host 55.229.xx.xxx; nested 
exception is:java.net.ConnectException: Connection timed out: connect

我一直在试图做到这一点，在过去3天，我仍似乎无法让过去的基本配置问题。

I've been trying to do this for the past 3 days and I still can't seem to get past basic configuration problems.

推荐答案

这个问题可能是你的RMI服务器发送，而不是广域网地址返回给本地地址。

The Problem could be your RMI server is sending back its local address, instead of WAN address.

System.setProperty("java.rmi.server.hostname", *host IP*);

也看看关于RMI的安全策略： http://docs.oracle.com/javase/tutorial/rmi/running.html

also take a look at security policies regarding RMI: http://docs.oracle.com/javase/tutorial/rmi/running.html

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