解析jQuery中的JSON [英] Parse JSON in jquery

问题描述

我正在尝试解析jquery中的以下json行:

I'm trying to parse the following json line in jquery:

[{
   "pk": 19,
   "model": "films.movies",
   "fields": {
       "length": "92",
       "name": "Beetle Juice",
       "actor": "Keaton", 
       "img_set": [{
             "pk": 42,
             "model": "films.img",
             "fields": {
                 "uploaded": "2010-10-08 21:44:30",
                 "f_movie": 19,
                 "url_med": "http://www.mondial-infos.fr/wp-content/uploads/2009/10/Beetlejuice.jpg"}
             }]
       }
},{
   "pk": 20,
   "model": "films.movies",
   "fields": {
      "length": "126",
      "name": "Batman",
      "actor": "Keaton", 
      "img_set": [{
            "pk": 43, 
            "model": "films.img",
            "fields": {
                  "uploaded": "2010-10-08 21:44:54",
                  "f_movie": 20, 
                  "url_med": "http://bruehoyt.com/superheroes/DC/batman/bruce/batmankeaton3.jpg"}
            }]
      }
}]

虽然img_set之后我无法访问任何内容.我想念什么?这是有效的json吗?

I can't access anything after img_set though. What am I missing? Is this valid json?

我正在尝试以下操作:

$.getJSON('/films/feeds/movie-by-actor/Keaton/',function(data) {
    $.each(data, function(i, movie) {

        alert(movie.fields.name);
        alert(movie.fields.img_set[0].pk);

    });
});

第一个警报起作用.第二个没有.

The first alert works. The second does not.

此外，尽管我不知道这很重要，但这是Django模板中的jquery.

In addition, though I don't know that it matters, this is jquery within a django template.

推荐答案

令人困惑的部分可能是单个元素的数组，但是img_set仍然是数组.确保首先使用索引来访问它，如下所示:

The confusing part is probably the array of a single element, but img_set is still an array. Make sure you're accessing it with an index first, like this:

.img_set[0].pk
//for example:
data[0].fields.img_set[0].pk

不只是:

.img_set.pk

您可以在此处尝试.

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