我正在使用passport local strategy和passport mongoose local创建用户并检查用户身份验证。然而，我想探索使用email而不是username的选项。我照文件上说的做，现在我已经被授权了。有人能告诉我为什么我得到一个错误，如果我只是使用用户名作为登录。

From passport-local-mongoose注意:usernamefield:指定保存用户名的字段名。默认为“username"。如果您想使用不同的字段来保存用户名（例如“email”），则可以使用此选项。

默认情况下，在passport本地策略中，LocalStrategy期望在名为username和password的参数中找到凭据。如果您的站点希望以不同的方式命名这些字段，则可以使用选项来更改默认值。

我试着同时设置两个真值，我也试着设置一个真值和另一个真值。我会得到同样的错误

express 4.16.0 express-Session 1.15.6 mongoose 5.1.2 passport 0.40 passport local 1.0.0 passport local mongoose 5.0.0

passport.js

module.exports = function (passport, LocalStrategy, User) {
    passport.use(new LocalStrategy({
        usernameField: 'email',
        passwordField: 'password',
        passReqToCallback: true,
        session: true
      },
      function(req, username, password, done) {
        return done(null, req.user);
      }
    ));
    passport.serializeUser(User.serializeUser());
    passport.deserializeUser(User.deserializeUser());
};

model/user.js

var UserSchema = new mongoose.Schema({
    name: { type: String, required: true, default: ''},
    username: { type: String, unique: true, uniqueCaseInsensitive: true, required: true, default: ''},
    email: { type: String, required: true, unique: true, uniqueCaseInsensitive: true, default: ''},
    profileImage:{ type: String, default: ''},
    timestamp: {type: String, default: () => moment().format("dddd, MMMM Do YYYY, h:mm:ss a") }
});

UserSchema.plugin(passportLocalMongoose, {usernameField: 'email'});
UserSchema.plugin(uniqueValidator);

module.exports = mongoose.model('UserSchema', UserSchema);

SignInform.js

<form class="form-signin" action="/users/signup" method="POST" enctype='multipart/form-data'>
    <h1 class="h3 mb-3 font-weight-normal">Please sign up</h1>
    <label for="inputName" class="sr-only">Name</label>
    <input type="bane" id="inputName" class="form-control" placeholder="Name" name='name' required autofocus />

    <label for="inputUsername" class="sr-only">Username</label>
    <input type="bane" id="inputUsername" class="form-control" placeholder="Username" name='username' required autofocus />

    <label for="inputEmail" class="sr-only">Email</label>
    <input type="email" id="inputEmail" class="form-control" placeholder="Email" name='email' required autofocus />

    <label for="inputPassword" class="sr-only">Password</label>
    <input type="password" id="inputPassword" class="form-control" placeholder="Password" name='password' required autofocus/>  

    <label for="inputConfirmPassword" class="sr-only">Confirm Password</label>
    <input type="password" id="inputConfirmPassword" class="form-control" placeholder="Confirm Password" name='confirmPassword' required autofocus/>  

    <input type='file' class='form-control' id='inputFile' name='profileImage' />
    <div style="height: 10px"></div>
    <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
    <p class="mt-5 mb-3 text-muted">&copy; 2017-2018</p>
</form>

routes/users.js

router.post('/signup', upload.single('profileImage'), function(req, res, next) {

  const name = req.body.name;
  const email = req.body.email;
  const password = req.body.password;
  const confirmPassword = req.body.confirmPassword;

  if (req.file) {
    console.log('Uploading File...');
    var profileImage = req.file.filename;
  } else {
    console.log('No File Uploaded... Setting to no image');
    var profileImage = 'noimage.jpg';
  }

  UserController.createUser(req.body, function(err, user) {
    if (err) {
      res.json({
        err: err
      });
      return;
    }
    passport.authenticate('local')(req, res, function() {
      //res.render('index', {currentUser: user, title: 'Product Page' });
      res.redirect('/');
      return;
     });
    return;
  })
});

我最终得到了授权和401

提前谢谢你。