在Unity中可以反序列化字典吗? [英] Is it possible to deserialize a dictionary in Unity?

问题描述

使用如下所示的JSON文件，

With a JSON file that looks like this,

{ 
"dict": {"key": "value"} 
}

如何在Unity中制作一个像这样的{{key:" value}的名为"dict"的字典?

how can I make a dictionary named "dict" that looks like this one {"key": "value"} in Unity?

这是我的课程.

[Serializable]
public class MyJson
{
    public Dictionary<string,string> dict;
}

我不知道为什么，但是当我尝试使用此类和JsonUnility.FromJson()方法时，它似乎并没有将字典更改为我期望的字典.相反，它只是null.

I don't know why but when I try to use this class and the JsonUnility.FromJson() method it doesn't seem to change dict to that dictionary that I would expect. Instead it is just null.

我已经看到在Unity文档中它说不支持字典"，所以有一些便捷的方法可以轻松地创建字典，或者我必须自己将其拼凑在一起数据?

I've seen that in the Unity docs it says "dictionaries are not supported" so is there some convenient method to create the dictionary easily or will I have to piece it together myself with the data?

这是潜在的JSON.我遇到的另一个问题是，我用python创建了JSON，这意味着我在字典中可以具有不同的值类型，但是这不适用于C#，因此现在它仅是字符串，我将后来想出一些办法.(可能将所有列表都列出来，那么只有字符串的列表将只有1个元素)

Here is a potential JSON. This kind of gets into another problem I was having though which is that I created the JSON with python meaning I could have different value types in my dictionary, but that won't work for C# so for now it's all just strings and I'll figure something out for that later. (Probably by making it all lists then the ones that are only strings will just have 1 element)

{
    "pages": [
    {
        "files": "[null, null, null, null]", 
        "imagepath": "C:/Users/Jeff/Pictures/location_sharing.png", 
        "pageNum": "0", 
        "polygons": "[[[122, 184], [178, 180], [174, 159], [126, 158]], [[191, 157], [194, 185], [241, 183], [246, 154]], [[334, 219], [323, 236], [323, 247], [338, 259], [358, 259], [364, 236], [356, 221], [344, 215]], [[512, 221], [503, 235], [508, 256], [518, 267], [538, 260], [548, 250], [541, 228], [529, 218]]]"
    }, 
    {
        "files": "[null, null, null]", 
        "imagepath": "C:/Users/Jeff/Pictures/node.png", 
        "pageNum": "1", 
        "polygons": "[[[189, 149], [181, 152], [188, 170], [197, 182], [196, 173], [192, 153]], [[233, 176], [258, 171], [244, 144]], [[116, 260], [143, 227], [181, 210], [225, 202], [276, 199], [305, 210], [353, 222], [360, 252], [361, 266]]]"
    }]}

推荐答案

您更新后的示例架构看起来根本不是字典.因为 pages 中的每个元素都不是实际的嵌套json，而是一个看起来像它的字符串可以作为嵌套json插入，所以您需要做的就是

Your updated example schema does not look like it is a dictionary at all. Because each element in pages is not actual nested json but a string that looks like it could be interpeted as nested json all you need to do is have

[Serializable]
public class PageContainer
{
    Page[] pages;
}

[Serializable]
public class Page
{
    public string files;
    public string imagepath;
    public string pagenum;
    public string polygons;
}

然后做

PageContainer pageContainer = JsonUtility.FromJson<PageContainer>(yourString);

然后，您可能需要做进一步的操作

You would then potentially need to do further

FileContainer fileContainer = JsonUtility.FromJson<FileContainer>(pageContainer.files);
PolygonContainer polygonContainer = JsonUtility.FromJson<PolygonContainer>(pageContainer.polygons);

并根据需要制作必要的类.

and make the necessary classes as needed.

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