無法將json反序列化為Dictionary <string, List<Purchase> &gt;

Question

我無法在C＃中將json反序列化為Dictionary<string, List<Purchas>> 。

這是我的.json ：

{
  "Ukraine": {
    {
      "Credits": 500,
      "Name": "Clever goat",
      "Price": {
        "Amount": 100,
        "Currency": "UAH"
      }
    },
    {
      "Credits": 1000,
      "Name": "Smart hare",
      "Price": {
        "Amount": 190,
        "Currency": "UAH"
      }
    }
  },

  "USA": {
    {
      "Credits": 500,
      "Name": "Clever goat",
      "Price": {
        "Amount": 10,
        "Currency": "USD"
      }
    },
    {
      "Credits": 1000,
      "Name": "Smart hare",
      "Price": {
        "Amount": 19,
        "Currency": "USD"
      }
    }
  }
}

這是我的Purchase課程：

public class Price
{
    public int Amount { get; set; }
    public string Currency { get; set; }
}

public class Purchase
{
    public int Credits { get; set; }
    public string Name { get; set; }
    public int Price { get; set; }
}

這是我試圖反序列化的方法：

var countryToPurchases = JsonConvert.DeserializeObject<Dictionary<string, List<Purchase>>>(dataJSON);

這是我得到的錯誤：

JsonReaderException：無效的屬性標識符字符：{。 路徑“烏克蘭”，第3行，位置4。Newtonsoft.Json.JsonTextReader.ParseProperty（）

我在這里想念什么？

Answer 1

您在這里有兩個問題：

1. Json無效。 應該有數組，但沒有。
   有效的json如下所示：

[
  {
    "Ukraine": [
      {
        "Credits": 500,
        "Name": "Clever goat",
        "Price": {
          "Amount": 100,
          "Currency": "UAH"
        }
      },
      {
        "Credits": 1000,
        "Name": "Smart hare",
        "Price": {
          "Amount": 190,
          "Currency": "UAH"
        }
      }
    ]
  },
  {
    "USA": [
      {
        "Credits": 500,
        "Name": "Clever goat",
        "Price": {
          "Amount": 10,
          "Currency": "USD"
        }
      },
      {
        "Credits": 1000,
        "Name": "Smart hare",
        "Price": {
          "Amount": 19,
          "Currency": "USD"
        }
      }
    ]
  }
]

2. Price屬性應為Price類型，而不是int類型。

public class Purchase
{
    public int Credits { get; set; }
    public string Name { get; set; }
    public Price Price { get; set; }
}

Answer 2

請檢查此json，看看是否可行：

 {
 "Ukraine": {
  "Credits": 500,
  "Name": "Clever goat",
  "Price": {
   "Amount": 100,
   "Currency": "UAH"
 }
},
 "USA": {
  "Credits": 500,
  "Name": "Clever goat",
  "Price": {
    "Amount": 10,
    "Currency": "USD"
  }
 }
}