上传文件到文件夹在node-express网站使用multer与mongodb

我有一个node-express应用程序，验证用户数据和上传文件使用multer，当我点击提交，名称，电子邮件，用户名和密码字段存储在mongodb数据库。但是profileimage文件不存储在uploads文件夹中，也不存储在monogdb中。我尝试使用我在网上找到的一些帮助，但都与我的应用程序一起工作，但没有将图片存储在文件夹中，mongodb也没有像我使用的模型所期望的那样在cli中传递profileimage字段。请我在这里没有得到什么，这是阻止文件被上传并存储在所需的文件夹和mongodb cli中显示的文件名称?

注意:其他代码与我的应用程序工作得很好，在下面的代码示例中注释，但没有将图片存储在所需的文件夹中。

users.js

var express = require('express');
var router = express.Router();
var multer = require('multer');

var uploads = multer({dest: './uploads/'});
/*var storage = multer.diskStorage({
    destination: function (req, file, cb) {
        cb(null, './uploads/');
    },
    filename: function (req, file, cb) {
        var originalname = file.originalname;
        var extension = originalname.split(".");
        filename = Date.now() + '.' + extension[extension.length-1];
        cb(null, filename);
    }
}); */
//Require a model page
var User = require('../models/user');
/* GET users listing. */
router.get('/', function(req, res, next) {
  res.send('respond with a resource');
});
router.get('/register', function(req, res, next) {
  res.render('register', {
    'title': 'Register'
  });
});
router.get('/login', function(req, res, next) {
  res.render('login', {
    'title': 'Log In'
  });
 });
//router.post('/register', multer({storage: storage, dest: './uploads/'}).single('profileimage'), function(req,res){
router.post('/register', uploads.single('profileimage'), function(req,res,next){
    //Get Form Value
    var name = req.body.name;
    var email = req.body.email;
    var username = req.body.username;
    var password = req.body.password;
    var password2 = req.body.password2;
    //Check for Image field
    if(req.file){
        console.log('uploading File...');
        // File Info
        var profileImageOriginalName = req.files.profileimage.originalname;
        var profileImageName = req.files.profileimage.name;
        var profileImageMime = req.files.profileimage.mimetype;
        var profileImagePath = req.files.profileimage.path;
        var profileImageExt = req.files.profileimage.extension;
        var profileImageSize = req.files.profileimage.size;
    } else {
        // Set a Default Image
        var profileImageName = 'noimage.png';
    }
    /*if(req.file){
     console.log('uploading File...');
     // File Info
     originalname = req.files.profileimage.originalname;
     feildname = req.files.profileimage.fieldname;
     mimetype = req.files.profileimage.mimetype;
     path = req.files.profileimage.path;
     encoding = req.files.profileimage.encoding;
     size = req.files.profileimage.size;
     } else {
     // Set a Default Image
     var original = 'noimage.png';
     } */
    //Form Validation
    req.checkBody('name', 'Name Field is required').notEmpty();
    req.checkBody('email', 'Email Field is required').notEmpty();
    req.checkBody('email', 'Email not valid').isEmail();
    req.checkBody('username', 'Username Field is required').notEmpty();
    req.checkBody('password', 'Password Field is required').notEmpty();
    req.checkBody('password2', 'Passwords do not match').equals(req.body.password);
    //Check for Errors
    var errors = req.validationErrors();
    if(errors){
        res.render('register',{
            errors: errors,
            name: name,
            email: email,
            username: username,
            password: password,
            password2: password2
        });
    } else {
        var newUser = new User({
            name: name,
            email: email,
            username: username,
            password: password,
            profileImage: profileImageName
    });
        //Create User
        User.createUser(newUser, function (err, user) {
            if(err) throw err;
            console.log(user);
        });
        //Success Message
        req.flash('success', 'You are now registered and may Log in');
        res.location('/');
        res.redirect('/');
    }
});
module.exports = router;

app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var expressValidator = require('express-validator');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var bodyParser = require('body-parser');
//var multer = require('multer');
var flash = require('connect-flash');
var mongo = require('mongodb');
var mongoose = require('mongoose');
var db = mongoose.connection;
var multer = require('multer');

var routes = require('./routes/index');
var users = require('./routes/users');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
//Handle File Uploads
var upload = multer({ dest: './uploads' });
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
//Handle Express Sessions
app.use(session({
  secret:'secret',
  saveUninitialized: true,
  resave: true
}));
//Passport
app.use(passport.initialize());
app.use(passport.session());
// Validator
app.use(expressValidator({
  errorFormatter: function(param, msg, value) {
      var namespace = param.split('.')
      , root    = namespace.shift()
      , formParam = root;
    while(namespace.length) {
      formParam += '[' + namespace.shift() + ']';
    }
    return {
      param : formParam,
      msg   : msg,
      value : value
    };
  }
}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(flash());
app.use(function (req, res, next) {
  res.locals.messages = require('express-messages')(req, res);
  next();
});
app.use('/', routes);
app.use('/users', users);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});

    module.exports = app;

模型/user.js

var mongoose = require('mongoose');
//This chooses the database to use for storing data a very important step
mongoose.connect('mongodb://localhost/nodeauth');
var db = mongoose.connection;
//User Schema
var UserSchema = mongoose.Schema({
    username: {
        type: String,
        index: true
    },
    password: {
        type: String
    },
    email: {
        type: String
    },
    name: {
        type: String
    },
    profileimaage: {
        type: String
    }
});
var User = module.exports = mongoose.model('User', UserSchema);
module.exports.createUser = function (newUser, callback) {
    newUser.save(callback);
}