Question

我从头开始生成Express应用程序并添加cookieParser，session和csrf中间件

/**
 * Module dependencies.
 */

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

var app = express();

// all environments
app.use(express.cookieParser());
app.use(express.session({secret: "lalala" }));
app.use(express.csrf());
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.json());
app.use(express.urlencoded());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

// development only
if ('development' == app.get('env')) {
  app.use(express.errorHandler());
}

app.get('/', routes.index);
app.get('/users', user.list);

http.createServer(app).listen(80, function(){
  console.log('Express server listening on port ' + app.get('port'));
});

然后在索引路由器中，我尝试访问会话

exports.index = function(req, res){
  res.cookie('u','1');
  console.log(res.session);
  res.render('index', { title: 'Express' });
};

但不幸的是，它总是未定义的！为什么呢？

Answer 1

您正在查看回复（res）而不是请求（req）。 console.log(req.session)应该有效。容易犯错误。

Express.js req.session在路线中未定义

1 个答案: