socket.io客户端在服务器端没有反应

Question

我尝试在服务器端侦听socket.io连接，但似乎客户端从未连接到服务器，因为命令行中没有显示日志消息。

这是我到目前为止的来源：

var socketIoClient = require('socket.io-client');

var client = socketIoClient('http://localhost:3000');

client.on('connect', function(socket){
    console.log('Client connected.');

    // Disconnect listener
    socket.on('disconnect', function() {
        console.log('Client disconnected.');
    });
});

client.on('chat message', function(msg){
    console.log(msg);
});

这是我的socket.io服务器代码：

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var ioSession = require('express-socket.io-session');
var session = require('express-session');
var redis = require('redis');
var redisStore = require('connect-redis')(session);
var cookieParser = require('cookie-parser');
var passport = require('passport');
var passportLocalStrategy = require('passport-local').Strategy;
var uuid = require('uuid');
var connectEnsureLogin = require('connect-ensure-login');
var bodyParser = require('body-parser');
var passportSocketIo = require('passport.socketio');

var userStore = {};

passport.use(new passportLocalStrategy(function(username, password, cb) {
  //if (!user) { return cb(null, false); }
  if (username != password) { return cb(null, false); }
  var user = {
      id: uuid.v4(),
      username: username
  };
  userStore[user.id] = user;

  return cb(null, user);
}));

passport.serializeUser(function(user, cb) {
  cb(null, user.id);
});

passport.deserializeUser(function(id, cb) {
  if (!userStore.hasOwnProperty(id)) { return cb('Fehler'); }
  cb(null, userStore[id]);
});

var redisClient = redis.createClient();
var sessionStore = new redisStore({
    client: redisClient
});

var sessionObject = session({
    secret: "my-secret",
    resave: false,
    saveUninitialized: false,
    store: sessionStore
});

// Configure view engine to render EJS templates.
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');

app.use(cookieParser());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(sessionObject);

app.use(passport.initialize());
app.use(passport.session());

app.get('/', connectEnsureLogin.ensureLoggedIn(), function(req, res) {
  res.render('index', { user: req.user });
});

app.get('/login', function(req, res){
    res.render('login');
});

app.post('/login',
  passport.authenticate('local', { failureRedirect: '/login' }),
  function(req, res) {
    res.redirect('/');
  }
);

// SOCKET HANDLING

io.on('connection', function(socket){
  console.log('a user connected ' + socket.handshake.session.id);

  socket.on('disconnect', function(){
      console.log('user disconnected ' + socket.handshake.session.id);
  });

  socket.on('chat message', function(msg){
    var username = socket.request.user.username;
    io.emit('chat message',  username + ': ' + msg);
  });

  socket.on('login', function (data) {
      console.log('login attempt with: ' + data.username + ':' + data.password);
  })
});

io.use(ioSession(sessionObject, {
    autoSave: true
}));

io.use(passportSocketIo.authorize({
  cookieParser: cookieParser,       // the same middleware you registrer in express
  key:          'connect.sid',       // the name of the cookie where express/connect stores its session_id
  secret:       'my-secret',    // the session_secret to parse the cookie
  store:        sessionStore,        // we NEED to use a sessionstore. no memorystore please
}));

http.listen(3000, function(){
  console.log('listening on *:3000');
});

我是否错过了重要的事情？