Question

我有一个简单的快递应用程序，它应该提供发布一些内容的端点。在我的控制器中调用$ http后，我收到以下错误：

TypeError：无法读取属性＆＃39; model＆＃39;未定义的在新模型（C：\ Webpages \ veryNiceWords \ API \ node_modules \ mongoose \ lib \ model.js：738：17）在C：\ Webpages \ veryNiceWords \ API \ api.js：24：17 在Layer.handle [as handle_request]（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ layer.js：95：5）在下一个（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ route.js：131：13）在Route.dispatch（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ route.js：112：3）在Layer.handle [as handle_request]（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ layer.js：95：5）在C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：277：22 在Function.process_params（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：330：12）在下一个（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：271：10）在C：\ Webpages \ veryNiceWords \ API \ api.js：16：2 在Layer.handle [as handle_request]（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ layer.js：95：5）在trim_prefix（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：312：13）在C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：280：7 在Function.process_params（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：330：12）在下一个（C：\ Webpages \ veryNiceWords \ API \ node_modules \ express \ lib \ router \ index.js：271：10）在C：\ Webpages \ veryNiceWords \ API \ node_modules \ body-parser \ lib \ read.js：129：5

我不知道这意味着什么，或者如何解决它。有人可以看看我的代码并指出我做错了吗？

api.js（快递应用）

var express = require('express');
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var Words = require('./models/words.js');
//initialize our express app
var app = express();
//use body parser with JSON
app.use(bodyParser.json());

//middleware for CORS requests
app.use(function(req, res, next) {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Methods', 'GET, PUT, POST, DELETE');
    res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');

    next();
});

//register endpoint
app.post('/API/addWords', function(req, res) {
    //get user from request body
    var words = req.body;

    var newWords = new Words.model({
        author: words.author,
        source: words.source,
        quote: words.quote
    });

    newWords.save(function(err) {
        if (err) throw err;

    console.log('words saved!');
    });
});

//connect to mongoDB
mongoose.connect('');

//define our server
var server = app.listen(3000, function() {
    console.log('api listening on ', server.address().port);
});

words.js（api所需的模型）

// grab the things we need
var mongoose = require('mongoose');
var Schema = mongoose.Schema;

// create a schema
var wordsSchema = new Schema({
  author: String,
  source: String,
  quote: String
});

var Words = mongoose.model('Words', wordsSchema);

// make this available to our users in our Node applications
module.exports = Words;

前端html：

<div class="container-fluid">
    <div class="row">
        <div class="form-group">
            <form ng-submit="submit()">
                <label for="author">Author:</label>
                <input type="text" class="form-control" id="author" ng-model="author" placeholder="Maya Angelou">
                <br>
                <label for="source">Source:</label>
                <input type="text" class="form-control" id="source" ng-model="source" placeholder="I know why the caged bird sings">
                <br>
                <label for="quote">Quote:</label>
                <textarea class="form-control" rows="10" id="quote" ng-model="quote" placeholder="There is no greater agony than bearing an untold story inside you"></textarea>
                <br>
                <div class="col-xs-4 col-xs-offset-4">
                    <input class="btn btn-default postQuote" type="submit" value="Quote it"></div>
            </form>
        </div>
    </div>
</div>

<div class="container">
    <p>{{ author }}</p>
    <p>{{ source }}</p>
    <p>{{ quote }}</p>
</div>

前端控制器：

'use strict';

angular.module('frontEndApp')
    .controller('AddwordsCtrl', function($scope, $http) {
        $scope.submit = function() {

            var url = 'http://localhost:3000/API/addWords';
            var words = {
                author: $scope.author,
                source: $scope.source,
                quote: $scope.quote
            };

            $http.post(url, words)
                .success(function(res) {
                    console.log('posted quote!');
                })
                .error(function(err) {
                    console.log(err);
                });
        };
    });

感谢您的帮助。

Answer 1

var newWords = new Words.model({存在问题，应该是var newWords = new Words({

new Words.model(不是必需的。只需要new Words(。

请更正代码。

Answer 2

您希望控制器端点为＆＃39; / API / addWords＆＃39;看起来像这样：

app.post('/API/addWords', function(req, res) {
  //get user from request body
  var words = req.body;

  var newWords = new Words({
    author: words.author,
    source: words.source,
    quote: words.quote
  });

  newWords.save(function(err) {
    if (err) throw err;
    console.log('words saved!');
  });

});

您不需要额外的＆＃39;模型＆＃39;

angularJS + mongoose：TypeError：无法读取属性＆＃39; model＆＃39;未定义的

2 个答案: