Messenger.js 是一个基于 Node.js 的消息传递框架，使用 JSON 格式传输数据，特点是简单而且快速。

Messenger.js 非常灵活，可以处理你所有全部需求：

• Supports Request / Reply Communication using round robin
• Supports Publish / Subscribe (fanout) Communication
• Supports Fire and Forget Communication
• Supports middleware plugin for messenger Listeners (servers)
• Extremely fast (disables TCP Nagle's algorithm)
• Fault tolerant: clients will reconnect to servers even if server goes down and comes back later
• Elegant API
• Easily involves multiple servers

示例代码：

var messenger = require('messenger');    client = messenger.createSpeaker(8000);  server = messenger.createListener(8000);    server.on('give it to me', function(message, data){    message.reply({'you':'got it'})  });    setInterval(function(){    client.request('give it to me', {hello:'world'}, function(data){      console.log(data);    });  }, 1000);

项目主页：http://www.open-open.com/lib/view/home/1330525158014