node.js – NodeJS cookie不适用于Express 4中的会话

我已将NodeJS应用程序更新为Express 4.0,现在除了快速会话cookie之外,我无法设置自己的cookie.此问题仅发生在任何会话的第一个请求上,当用户重新加载自定义cookie所在的页面时.

var express = require('express');
var routes = require('./routes');
var http = require('http');
var path = require('path');
var session = require('express-session');

var app = express();

app.set('port',process.env.PORT || 3000);

app.use(express.static(path.join(__dirname,'public')));
app.use(require('body-parser')());
app.use(require('method-override')());
app.use(require('cookie-parser')('cookie-secret'));
//app.use(session({ secret: 'secret',key: 'sid'})); //uncomment this to see the problem

app.get('/',function(req,res,next) {
    res.cookie('testing','test'); //this isn't set if using 'app.use(session...)'
    res.send('This is a cookie test');
});

http.createServer(app).listen(app.get('port'),function(){
    console.log('Express server listening on port ' + app.get('port'));
});

去测试：
1.运行上面的代码,将cookie“testing”发送到浏览器正确.
2.然后清除cookie并取消注释“app.use(session …”行.
3.运行应用程序,唯一的cookie是“sid”.哪里的“测试”？
4.重新加载页面(不清除cookie)并且存在“测试”cookie.

在第一次请求时,我的所有cookie都必须存在.

解决方法

这对我有用：

var mw = {
  favicon: require('static-favicon'),logger: require('morgan'),bodyParser: require('body-parser'),cookieParser: require('cookie-parser'),session: require('express-session'),methodOverride: require('method-override')
};

var MongoStore = require('connect-mongo')(mw);
app.store = new MongoStore(...);


app.use(function(req,next) {
  if ('HEAD' === req.method || 'OPTIONS' === req.method) return next();
  var writeHead = res.writeHead;
  res.writeHead = function() {
    res.cookie('XSRF-TOKEN',req.session && req.session._csrfSecret);
    writeHead.apply(res,arguments);
  };
  next();
});

app.use(mw.session({
  key: 'yourCookieID',cookie: {
    maxAge: 3600000 * 24 * 7
  },store: app.store
}));