我在一台盛大云 VPS 上跑了个 ws 模块的 websocket, 然后 VPS 的端口是打开的, 大致代码是:

WebSocketServer = require('ws').Server
wss = new WebSocketServer port: 8071
wss.on 'connection', (ws) ->
  show 'connection'
  record = time
  me = repeat 1000, ->
    if time isnt record
     delay 100, -> ws.send 'reload'
  ws.on 'close', ->
    clearInterval me
    show 'close'

然后从浏览器访问, 没有看到 connection 打印出来, 应该是连接失败,

s = new WebSocket('ws://172.17.15.63:8071')

然后我从 VPS 上用下面的代码访问, 连接成功打印了 connection,

WS = require 'ws'
ws = new WS 'ws://localhost:8071'
ws.on 'open', ->
  ws.send 'something'
ws.on 'message', (message) ->
  console.log 'got %s', mseeage

我在局域网的两台电脑上相互访问也是这样的情况, 这是为什么呢?