Express中的会话无效

Question

我正在尝试使用Express中的会话.我尽可能仔细地阅读了文档,但是在我的代码和示例之间找不到任何差异 - 但是,会话似乎没有初始化.

这是我的app.js的开始

var express = require('express')
  , routes = require('./routes')
  , customRoutes = require('./routes/custom.js');

var app = module.exports = express.createServer();

// Configuration

app.configure(function(){
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(__dirname + '/public'));

  app.use(express.cookieParser());  
  app.use(express.session({ secret: "keyboard cat" }));

});

app.configure('development', function(){
  app.use(express.errorHandler({ dumpExceptions: true, showStack: true })); 
});

app.configure('production', function(){
  app.use(express.errorHandler()); 
});

// Routes

app.get('/', function(req, res){

    req.session.something = "please?";
    req.session.boo = true;
    req.session.int = 100;

    console.log(req.session); // undefined
});

当我运行它时:TypeError:无法设置未定义的属性'something'.

有什么要检查的？

$ npm ls

ââ⬠cradle@0.5.7
â âââ vargs@0.1.0
â ââ⬠vows@0.5.13
â   âââ eyes@0.1.6
ââ⬠express@2.5.0
â âââ connect@1.7.2
â âââ mime@1.2.4
â âââ mkdirp@0.0.7
â âââ qs@0.3.2
âââ node-static@0.5.9

Answer 1

您没有指定任何会话存储,从这里检查例如:https://github.com/alessioalex/Nodetuts/blob/master/express_samples/app.js#L15-31

例如,指定内存存储(这仅适用于开发):

var MemStore = express.session.MemoryStore;
...
app.use(express.session({secret: 'secret_key', store: MemStore({
  reapInterval: 60000 * 10
})}));