Question

我有一个Passport本地策略尝试在mongodb中查询用户：

passport.use(new LocalStrategy(
    function(username, password, done){
      console.log("username and password is >>>>>", username, password);
      var findOne = Q.nbind(User.findOne, User);
      findOne({"username": username})
      .then(function(user){
        console.log("inside findone user>>>>>", err, user);

        if (!user) {
          return done( null, false, {messge: 'This user is not registered.'});
        }

        if (!user.comparePasswords(password)){
          return done(null, false, {message: 'This password is not correct'});
        }

        return done(null, user);
      })
      .fail(function(err){
        console.log("failed at here");
        return done(null, false, {message: "Server have difficulty"});
      })
    }
  ));

打印

“在这里失败”，这意味着访问mongodb时出错。但是，我在注册函数中编写了非常相似的函数，并且每件事都运行良好：

exports.signup = function(req, res, next){
  console.log("hit the signup function");
  var findOne = Q.nbind(User.findOne, User);
  findOne({username: req.body.username})
  .then(function(user){
    console.log("user from query is >>>>>", user);
    if (!user){
      // user doesn't exist, create a new one\
      var create = Q.nbind(User.create, User);
      var newUser = {username: req.body.username, password: req.body.password};
      return create(newUser);
    } else {
      // user already exist, redirect to sign in page
      res.send(409, 'already exist');
      //res.redirect('/signin');
    }
  })
  .then(function(user){
    res.json(200,user);
  })
  .fail(function(err){
    //next(err);
    console.log("error is >>>>", err);
    res.redirect('/signin');
  })
};

我通过注册创建了一个用户。因此，当我尝试使用同一个用户注册时，它会给我409。但是，当我尝试使用该用户登录时，护照本地策略报告错误访问mongodb。有什么想法吗？欢迎您查看回购：https://github.com/7seven7lst/chatterApp 护照配置可在以下位置找到：https://github.com/7seven7lst/chatterApp/blob/master/lib/routes.js 注册可以在以下位置找到： https://github.com/7seven7lst/chatterApp/blob/master/lib/controllers/user.js

Answer 1

.then(function(user){
  console.log("inside findone user>>>>>", err, user);

由于未定义err，因此引发错误。

如果您记录fail功能的实际错误：

.fail(function(err){
  console.log("failed at here", err);
  return done(null, false, {message: "Server have difficulty"});
})

你会看到：

ReferenceError: err is not defined
    at /Users/dting/chatterApp/lib/routes.js:16:49

NodeJS Mongoose Passport本地策略查询Mongodb给出错误，

1 个答案: