Socket.io'on'返回undefined

Question

好的,所以我正在尝试学习socket.io,我收到此错误:

io.socket.on('connection',function(socket)TypeError:无法调用未定义的'on'方法

继承我的代码:

var express = require('express')
  , app = express.createServer()
  , routes = require('./routes')
  , user = require('./routes/user')
  , path = require('path')
  , io = require('socket.io').listen(app);


// all environments
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

app.listen(3000);

app.get('/', routes.index);
app.get('/users', user.list);

io.socket.on('connection', function (socket) {
    socket.emit('news', { hello: 'world' });
    socket.on('my other event', function (data) {
        console.log(data);
    });
});

我知道它会变得相当明显.

Answer 1

应该是io.sockets.on("套接字"而不是"套接字"):

io.sockets.on('connection', function (socket) {
    socket.emit('news', { hello: 'world' });
    socket.on('my other event', function (data) {
        console.log(data);
    });
});