node.js - Nodejs : Express + RedisStore, req.session 未定义

Question

我以前这样做过...这次我没有意识到我做错了什么，但我已经苦苦挣扎了几个小时，现在认为自己精神上受阻了。对应代码:

app.use(express.bodyParser());
app.use(i18next.handle);
app.use(express.methodOverride());
app.use(express.static(__dirname + '/public'));
app.set('views', __dirname + '/views');
app.set('view engine', 'swig');
app.set('view cache', false);
var session_store = new RedisStore({ client : redis_client});
app.use(express.errorHandler({ dumpExceptions : true, showStack : true}));
app.use(express.cookieParser());
app.use(express.session({ store : session_store, secret : SESSION_SECRET, key : "sid" }));
app.use(app.router);

然后在处理请求时，这里只是一个例子:

app.get('/session_test', function (req, res, next) {
  console.log(req.session); //undefined
});

与 Redis 的连接工作正常。没有显示错误。然后，当尝试从请求中访问它时，req.session 是未定义的。浏览器正在发送正确的 sid。

我不是请求期间发生的确切流程的专家，但在调试之后，似乎在 session 中间件之前调用了路由器。

在此先感谢您提供的所有可能的帮助。我会尽可能提供任何代码，但不确定对您有何帮助。

这是更多代码。 服务器.js

  //Dependency modules
var express = require('express'),
  app = express.createServer(),
  //Application dependency modules
  settings = require('./settings'), //app settings
  routes = require('./routes'), //http routes
  rtroutes = require('./rtroutes'); //real time communication routes (io)

var io = require('socket.io').listen(app);
var appWithSettings = settings.setup(io, app);

routes.settings.setup(appWithSettings);
rtroutes.settings.setup(io, appWithSettings);

在调用 routes.settings.setup 之前不会添加任何路由。设置(这是全局设置)是一个非常大的文件。这就是所有配置完成的地方。在调用 settings.setup 方法之前不会添加设置。这是文件的一部分:

//Dependency modules
var express = require('express'),
  redis = require('redis'),
//Important configuration values
var SESSION_SECRET = 'some secret thing which doesnt belong to stackoverflow!',
    insert_other_variables_here = "lalala";

//Computed general objects

var RedisStore = require('connect-redis')(express),
  redis_client = redis.createClient(REDIS_PORT, REDIS_HOST);

exports.setup = function (io, app) {
  app.configure(function () {
    app.use(express.bodyParser());
    app.use(i18next.handle);
    app.use(express.methodOverride());
    app.use(express.static(__dirname + '/public'));
    app.set('views', __dirname + '/views');
    app.set('view engine', 'swig');
    app.set('view cache', false);
    var session_store = new RedisStore({ client : redis_client});
    app.use(express.errorHandler({ dumpExceptions : true, showStack : true}));
    app.use(express.cookieParser());
    console.log("ABOUT TO ADD SESSION STORE MIDDLEWARE");
    app.use(express.session({ store : session_store, secret : SESSION_SECRET, key : "sid" }));
    console.log("AND NOW ADDED THE SESSION STORE MIDDLEWARE");
    app.use(app.router);
  });

  app.configure('development', function () {
     //some things in here, but nothing that affects app. I have commented this
     //for debugging and it changed nothing
  });

  app.configure('production', function () {
    //mostly configuration for io and some caching layers, as well as servers info
    app.use(express.errorHandler());
    app.use(express.logger({ stream : logFile }));
  });
  app.listen(WEB_PORT);
  return {
    app : app,
    //some other stuff that isn't relevant
  }
}

我有 25 条路由分为 4 个不同的文件(不知何故直到现在我才需要 session ，因为我延迟了一些部分并且所需的一切都是用 Mongoose 完成的)。这是一个如何完成的示例(使用假名):

路由/index.js

export.settings = require("./settings");

routes/settings.js

exports.setup = function (app_settings) {
  require("./route1")(app_settings);
  require("./route2")(app_settings);
  require("./route3")(app_settings);
};

这是一个剥离的“route1”文件(“routes/route1.js”):

module.exports = function (app_settings) {
  var app = app_settings.app;
  console.log("ABOUT TO ADD ROUTES")
  app.get("/signin", function (req, res, next) {
    console.log(req.session); //this will be undefined
  });
  app.get("/register", function (req, res, next) {
  });
  app.get('/language', function (req, res, next) {
  });
  app.post('/settings', function (req, res, next) {
  });
  console.log("ADDED ROUTES NOW!")
}

Answer 1

无论何时定义路由，路由器都会自动插入到当时的中间件堆栈中(随后故意插入它的尝试将被忽略)。您确定在设置 session 处理程序之前没有定义任何路由吗？