Ember app无法从本地文件加载json数据

时间:2017-07-08 15:34:49

标签: javascript jquery json ember.js

我一直在关注ember快速入门指南来创建一个显示一些数据(https://guides.emberjs.com/v2.13.0/getting-started/quick-start/)的应用程序,但我不想只显示带有科学家名字的javascript数组,而是想显示以下json中的产品。

我已将json文件放在公用文件夹中。

看起来像:

{
  "products": [
    {
      "_id": "58ff60ffcd082f040072305a",
      "slug": "apple-tree-printed-linen-butterfly-bow-tie",
      "name": "Apple Tree Printed Linen Butterfly Bow Tie ",
      "description": "This fun 40 Colori Apple Tree Printed Linen Butterfly Bow Tie features a design of various apple trees built from tiny polka dots. The back of this bow tie features a polka dot print in complementing colours which when the bow tie is tied will pop out from behind making for a subtle yet unique detail. The playful design, stand out natural linen texture, and colourful combinations make this bow tie a perfect accessory for any outfit!\n",
      "standard_manufacturer": "58cbafc55491430300c422ff",
      "details": "Size: Untied (self-tie) bow tie with an easily adjustable neck strap from 13-3/4'' to 19'' (35 to 48 cm)\nHeight: 6 cm\nMaterial: Printed 100% linen\nCare: Dry clean\nMade in Italy",
      "sizes": [
        {
          "value": "Violet",
          "size": "57722c80c8595b0300a11e61",
          "_id": "58ff60ffcd082f0400723070",
          "marked_as_oos_at": null,
          "quantity": -1,
          "stock": true,
          "id": "58ff60ffcd082f0400723070"
        },

等等。

我显示列表路径模型的代码如下

import Ember from 'ember';

export default Ember.Route.extend({
    model() {
        //return ['Marie Curie', 'Mae Jemison', 'Albert Hofmann'];
        return Ember.$.getJSON("/products.json");
    }
});

除了

之外,我完全按照教程进行操作
return Ember.$.getJSON("/products.json");

排在科学家.js。我的数据没有显示,我在ember检查器中得到的错误是

compiled.js:2 Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'.
    at E (compiled.js:2)
    at Object.u (compiled.js:25)
    at compiled.js:25
E   @   compiled.js:2
u   @   compiled.js:25
(anonymous) @   compiled.js:25

我是非常新的ember和相当新的js。任何帮助赞赏!谢谢!

2 个答案:

答案 0 :(得分:1)

Ember附带开发服务器(localhost:4200),它不能像网络服务器一样使用,也不能用于响应ajax请求。您无法使用localhost:4200端点Ember.$.getJSON("/products.json")进行此工作。

您需要后端任何网络服务器才能返回响应。如果您目前没有这个用于开发目的,则需要使用动态渲染数据, 那我更喜欢使用ember-cli-mirage插件。

http://www.ember-cli-mirage.com/docs/v0.3.x/

答案 1 :(得分:1)

如何将JSON放在app文件夹中并导入它?

import Ember from 'ember';
import yourData from 'your-app/json-file-name.js';

export default Ember.Route.extend({
  model() {
    return yourData;
  }
});

https://ember-twiddle.com/afb9d71933322860938b3936d617a776 - 你可以用它来尝试让.json工作......

这里也有一个主题: https://discuss.emberjs.com/t/how-to-import-data-from-json-file-to-ember-app

但是......不要期望它适当地存在于余烬数据存储中 - 并且在很多情况下都会像你一样期待。