红帽全球峰会3.2. 在 Red Hat Enterprise Linux 上运行 Hello World
Hello World 示例创建了一个与代理的连接，发送一条消息，其中包含到 示例 队列的问候消息，然后接收它。成功时，它会将收到的消息输出到控制台。
更改到 examples 目录，再运行 helloworld.js 示例。
$ cd <source-dir>/examples
$ node helloworld.js
Hello World!
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