使用express 4和socket.io在node.js中进行会话

我想在会话中坚持一些数据。 我正在使用MongoDB作为会话存储。

我准备了简单的代码，来做到这一点。 但是，这是行不通的。 我得到这个错误：

types错误：无法设置未定义的属性'myVariable'

这是我的代码：

var express = require('express'); var app = require('express')(); var http = require('http') var server = require('http').Server(app); var io = require('socket.io')(server); var get_ip = require('ipware')().get_ip; var Sequelize = require('sequelize'); var url = require("url"); var crypto = require('crypto'); var cookieParser = require('cookie-parser'); var Session = require('express-session'); var MongoStore = require('connect-mongo')(Session); var mongoose = require('mongoose'); var url =require('url'); app.use(cookieParser()); app.use(Session({ cookie: { maxAge: 1000*60*2 } , secret: "session secret" , resave: true, saveUninitialized: true, store:new MongoStore({ db: 'linchat' }) })); server.listen(3000); io.on('connection', function (socket) { socket.on('join', function(href, referer){ socket.request.session.myVariable = 'my session variable value'; console.log('save on to session'); }) }); 

我做错了什么？ 我用：“express”：“4.12.3”，“socket.io”：“1.3.5”

编辑我也尝试使用express-socket.io会话包：

 var express = require('express'); var app = require('express')(); var http = require('http') var server = require('http').Server(app); var io = require('socket.io')(server); var get_ip = require('ipware')().get_ip; var Sequelize = require('sequelize'); var url = require("url"); var crypto = require('crypto'); var cookieParser = require('cookie-parser'); var Session = require('express-session'); var MongoStore = require('connect-mongo')(Session); var mongoose = require('mongoose'); var url =require('url'); app.use(cookieParser()); var session = require("express-session")({ secret: "my-secret", resave: true, saveUninitialized: true, store:new MongoStore({ db: 'linchat' }) }); app.use(session); io.use(require("express-socket.io-session")(session)); server.listen(3000); io.on('connection', function (socket) { socket.on('join', function(href, referer){ if(socket.handshake.session.views){ socket.handshake.session.views +=1; } else { socket.handshake.session.views =1; } console.log(socket.handshake.session.views); }) }); 

但是我console.log（）总是返回'1'