Question

我无法在C＃中将json反序列化为Dictionary<string, List<Purchas>>。

这是我的.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"
      }
    }
  }
}

这是我的Purchase班：

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; }
}

这是我要反序列化的方式：

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

这是我遇到的错误：

JsonReaderException：无效的属性标识符字符：{。路径“乌克兰”，第3行，位置4。 Newtonsoft.Json.JsonTextReader.ParseProperty（）

我在这里想念什么？

Answer 1

您在这里有两个问题：

Json无效。应该有数组，但是没有。
有效的json看起来像这样：

[
  {
    "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"
        }
      }
    ]
  }
]

Price属性的类型应为Price，而不是int。

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

Answer 2

请检查此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"
  }
 }
}

无法将json反序列化为Dictionary <string，list <purchase =“” >>

2 个答案: