反序列化JSON对象到一个数组

问题描述

我有给我类似的项目，如不同的对象而不是作为一个数组成员列表的API。让我们来看看在 _items 节点，它包含在存储中的可用项目：

I have an API that gives me a list of similar items as different object instead that as members of an array. Let's see the _items node, which contains the available items on a store:

{
    "_ok":200,

    "_store":
          {
           "location":"Rome",
           "open":true
          },
    "_items":
         {
            "itemA":{ "color":"blue","size":3},
            "itemB":{ "color":"red","size":1},
            "itemC":{ "color":"cyan","size":3},
            "itemD":{ "color":"yellow","size":0},
          }

}

我使用的是非常好的Newtonsoft JSON.NET做我的反序列化，但我不知道我怎么能得到项目的列表。它的名单阵列，说：

I am using the very nice Newtonsoft JSON.NET to do my deserialization, but I do not know how can I get a list of items. it the list was an array, say:

"_items":{["itemA":{ "color":"blue","size":3},"itemB":...

我猜想，这本来是很容易使用JsonConvert获得

I guess that it would have been easy using JsonConvert to get a

List<Item>

，其中项目是用颜色和大小成员的类。

where Item was a class with color and size member.

。可惜我不能改变的API。
谢谢。

. Too bad I can't change the API.thanks.

推荐答案

您可以使用 JsonExtensionDataAttribute 来存储项目，并使用一个属性将它们转换为项目实例。

You can use JsonExtensionDataAttribute to store the items, and use a property to convert them to Item instances.

[JsonProperty("_items")]
private ItemsContainer _items;


[JsonObject(MemberSerialization.OptIn)]
class ItemsContainer
{
    [JsonExtensionData]
    private IDictionary<string, JToken> _items;

    public IEnumerable<Item> Items
    {
        get
        {
            return _items.Values.Select(i => i.ToObject<Item>());
        }
    }
}

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