无法获取要在Express 4中发送请求的Cookie

Question

Here's my initial config:

var session         = require('express-session');
var cookieParser    = require('cookie-parser');
app.use(session({
  saveUninitialized: true,
  resave: false,
  genid: function(req) {
    return Services.misc.generateUUID()
  },
  secret: secret.toString()
}));
app.use(cookieParser(secret));

Then in my controller (it's routed through a dead simple router to a controller, which then renders appropriate actions based on a Rails-like naming convention) I'll do something like this:

var TestController = {
  noaction: function(req, res) {
    var locals = {
      billy: 'the goat'
    }

    console.log('req session'.red, req.session);
    res.cookie('test_cookie', 'Wu Tang Clan');

    this.services.render.view(req, res, this, 200, locals);
  }

module.exports = TestController;

Note that this.services.render.view is just a service so that I don't have to write res.render('./app/controllers' + controller + '/' + action)

Note the res.cookie line in the controller ( docs on express.js ). That's what the official docs say to do and in fact, it's then set in the browser:

However, the line above res.cookie is a log and I would imagine we'd have test_cookie in it, but:

All I get is a standard blank cookie every time, even though it's set browser-side and supposedly sending.

My question is: How do I properly set and receive cookies in Express 4?

Answer 1

答案是：每次nodemon每次重新启动服务器以传播代码更​​改时，都会清除会话。

Answer 2

Your code seems to be ok, as dsp_099 said, it is probably the nodemon. The express-session saves the data in-memory, so when you restart your server (with nodemon automatically) all the memory data is reseted.

I you wanna persist the session data even if node is restarted, may i suggest you use redis-session (Redis Database)