會話在Express JS中不起作用

Question

我正在使用express-session創建登錄應用程序。 當我通過發布請求登錄到應用程序時，將創建cookie，但是Session對我不起作用。

Server.js

var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var session = require('express-session');
app.use(cookieParser());

app.use(session({
  key: 'user_sid',
  secret: 'somerandonstuffs',
  resave: false,
  saveUninitialized: false,
  cookie: {
    expires: 600000
  }
}));
var sessionChecker = (req, res, next) => {
  if (req.session.user && req.cookies.user_sid) {
    res.redirect('/');;
  } else {
    next();
  }
};
app.post('/login', function (req, res) {
  console.log(req.session.user)
  if (req.session.user && req.cookies.user_sid) {
    result = { "message": "loggedinwithsession" };
    res.send(result);
  } else {
    var data = req.body;
    var responseData = {};
    console.log(data);
    res.setHeader('Content-Type', 'application/json');
    controller.cont.login(data.email, data.password).then(result => {
      res.send(result),
        req.session.user = result;
    }
    ).catch(result => res.send(result))
  }
})

Answer 1

您正在發送結果數據，然后才能設置會話。

controller.cont.login(data.email, data.password).then(result => {
    res.send(result), //wrong
    req.session.user = result;
}).catch(result => res.send(result))

你應該這樣

controller.cont.login(data.email, data.password).then(result => {
    console.log("setting session"); //for debugging
    req.session.user = result; // first set session
    res.send(result);          // then send result
}).catch(result => res.send(result))

這是一個最低版本。

app.all('/', function(req, res){
    console.log(req.session)
    res.send("welcome")
})
app.get('/set', function(req, res){
    console.log(req.session)
    res.setHeader('Content-Type', 'text/html');
    req.session.data = "test session value"
    res.send("test")
})