2019独角兽企业重金招聘Python工程师标准>>> 
nats原生不支持websocket，我们使用了ws-tcp-relay代理，并使用websocket-nats客户端插件。
四川开发环境：
ws://四川开发:30225
nats://四川开发:30222
安装方法：
NPM
npm install websocket-nats
CDN
使用方式：
发布/订阅模型：
// Simple Publisher
nats.publish('foo', 'Hello World!');
// Simple Subscriber
nats.subscribe('foo', function(msg) {
console.log('Received a message: ' + msg);
});请求／响应模型：
// Request Streams
var sid = nats.request('request', function(response) {
console.log('Got a response in msg stream: ' + response);
});
// Replies
nats.subscribe('help', function(request, replyTo) {
nats.publish(replyTo, 'I can help!');
});队列模型：
// All subscriptions with the same queue name will form a queue group.
// Each message will be delivered to only one subscriber per queue group,
// queuing semantics. You can have as many queue groups as you wish.
// Normal subscribers will continue to work as expected.
nats.subscribe('foo', {'queue':'job.workers'}, function() {
received += 1;
});详细请进：websocket-nats