使用 Express、Node 和 Rest 从 AngularJS 发布数据

Question

我对 javascript 堆栈很陌生，并且一直在尝试将表单从 angular 发布到 mongo。我可以取回列表，但无法发布。

下面的代码列表没问题，但是当我发布时，它会发布一条空白记录（而且，即使我没有在页面上执行任何操作，它也会每隔几分钟发布一次）

我可以看到它能够调用服务器端方法，但是数据没有被传递给持久性。

我知道我在做一些愚蠢的事情，但只是不确定它是什么。我已经在谷歌上搜索过，但没有看到我可以采取的解决方案。任何帮助将不胜感激。

============jade================
    div(ng-app="sell" ng-controller="sellCtlr")
        .container-fluid
        form#listingForm.form-horizontal
                      .form-group
                       .row
                           .col-xs-8
                               label.control-label(for="title") title 
                               input#title.form-control(type="text", name="title", ng-model="listing.title")
                   .form-group
                       .row
                           .col-xs-8
                               label.control-label(for="subTitle") sub-title
                               input#subTitle.form-control(type="text", name="subTitle",, ng-model="listing.subTitle")

  .........
  .........
                        .form-group
                       .col-xs-6
                           button.btn.btn-primary(type="submit" ng-click="createListing()") Submit
============app.js================
/* server side controllers **/
var listController = require('./server/controllers/list-controller');

/* routes */
var sell = require('./client/routes/sell');

/* rest api */
app.get('/api/listings', listController.list);
app.post('/api/listings', listController.create);

/* sell route */
app.use('/sell', sell);

============sell.js (sell route)================
var express = require('express');
var router = express.Router();

/* GET sell page. */
router.get('/', function(req, res, next) {
    res.render('sell', { title: 'Express' });
});

/* POST sell page. */
router.post('/api/listings', function(req, res, next) {
    res.render('sell', { title: 'Express' });
});

module.exports = router;

============sellCtlr.js (client side)================    

var app = angular.module('sell', ['ngResource']);

app.controller('sellCtlr', ['$scope', '$resource',
    function($scope, $resource){

    var Listing = $resource('/api/listings');
    $scope.listing = new Listing();

    $scope.createListing = function(){

        Listing.save($scope.listing, function(){
            //data saved. do something here.
        });//saves an entry. Assuming $scope.listing is the Listing object
        };
    }]);

============list-controller.js (server side)================

var Listing = require('../models/listing');

// save listing
module.exports.create = function (req, res) {
  var listing = new Listing(req.body);
  listing.save(function (err, result){
      res.json(result);
  });
}
//retrieve all listings
module.exports.list = function(req, res){
Listing.find({}, function(err, results) {
    res.json(results);
});
}


============listing.js (model, server side)================

var mongoose = require('mongoose');

module.exports = mongoose.model('Listing', {
  title: String,
  subTitle: String

});

非常感谢大家

编辑 2 -- 完整的 app.js 文件

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

/*%%%%% server side controllers %%%%%%**/
var listController = require('./server/controllers/list-controller');
/*%%%%% server side controllers %%%%%%**/


/*%%%%% mongoose config %%%%%%**/
var secrets = require('./config/secrets');
var mongoose = require('mongoose');
//Connect to the MongoDB
mongoose.connect(secrets.db);
/*%%%%% mongoose config %%%%%%**/

/*%%%%% routes %%%%%%**/
var index = require('./client/routes/index');
var listing = require('./client/routes/listing');
var users = require('./client/routes/users');
var sell = require('./client/routes/sell');
/*%%%%% routes %%%%%%**/

/*%%%%% express setup %%%%%%**/
var app = express();
/*%%%%% express setup %%%%%%**/

/*%%%%% view engine setup %%%%%%**/
app.set('views', path.join(__dirname, 'client/views'));
app.set('view engine', 'jade');
/*%%%%% view engine setup %%%%%%**/

/*%%%%% client side directories %%%%%%**/
app.use(express.static('client'));
app.use(express.static('client/views'));

app.use('/js', express.static(__dirname + '/client/js'));
app.use('/js', express.static(__dirname + '/client/views/js'));

app.use('/css', express.static(__dirname + '/client/views/css'));

/*%%%%% rest api's %%%%%%**/
app.get('/api/listings', listController.list);
app.post('/api/listings', listController.create);
/*%%%%% rest api's %%%%%%**/



// 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 }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));


app.use('/', index);
app.use('/users', users);
app.use('/sell', sell);

// 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;

Answer 1

您没有正确注册模型，您需要使用mongoose.Schema。我很惊讶您没有收到错误消息。

var mongoose = require('mongoose');

module.exports = mongoose.model('Listing', new mongoose.Schema({
  title: String,
  subTitle: String
}));

编辑1：

将您的 save() 调用更改为以下内容：

$scope.createListing = function(){
  $scope.listing.$save();
};

EDIT3

注册中间件的顺序很重要。您正在注册您的路线，在您的 bodyparser 之前，这是不正确的。您的正文解析器和其他中间件必须在路由/API 之前注册。

见下文：

/*%%%%% express setup %%%%%%**/
var app = express();
/*%%%%% express setup %%%%%%**/

/*%%%%% view engine setup %%%%%%**/
app.set('views', path.join(__dirname, 'client/views'));
app.set('view engine', 'jade');
/*%%%%% view engine setup %%%%%%**/

// 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 }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));


// ***Register the API AFTER the body and cookie parser**

/*%%%%% client side directories %%%%%%**/
app.use(express.static('client'));
app.use(express.static('client/views'));

app.use('/js', express.static(__dirname + '/client/js'));
app.use('/js', express.static(__dirname + '/client/views/js'));

app.use('/css', express.static(__dirname + '/client/views/css'));

/*%%%%% rest api's %%%%%%**/
app.get('/api/listings', listController.list);
app.post('/api/listings', listController.create);
/*%%%%% rest api's %%%%%%**/

app.use('/', index);
app.use('/users', users);
app.use('/sell', sell);