c# - 使用 JSON.NET 反序列化 json - 无法反序列化，因为该类型需要 JSON 数组 c#

Question

这是我的json

{
   "odata.metadata" : "",
   "value" : [
      {
         "ItemCode" : "NUOVO_ELEMENT1406",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT14506",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT1455106",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT1455a106",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT145574a106",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT16",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT1d6",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT433",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT1d464645454546",
         "ItemName" : "UPDATE",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT433787079",
         "ItemName" : "Prova3",
         "QuantityOnStock" : 0.0
      },
      {
         "ItemCode" : "NUOVO_ELEMENT43389898989787079",
         "ItemName" : "Prova3121",
         "QuantityOnStock" : 0.0
      }
   ]
}

这是实体，负责映射json

public class Item
    {
        [JsonProperty(PropertyName ="ItemCode")]
        public string ItemCode { get; set; }
        [JsonProperty(PropertyName ="ItemName")]
        public string ItemName { get; set; }
        [JsonProperty(PropertyName ="QuantityOnStock")]
        public decimal QuantityOnStock { get; set; }
    }

有了这个类，我想到了json

internal class JsonParser
    {

        internal void Deserialize(string v)
        {

            List<Item> it = JsonConvert.DeserializeObject<List<Item>>(v);
            foreach (Item item in it)
            {
                Console.WriteLine("{0},{1}", item.ItemName, item.ItemCode);
            }

        }
    }

我尝试删除 List 并仅使用 Item，如果我的 json 仅包含一个元素当然没问题，但如果我有更多元素元素，我尝试使用列表时收到标题中描述的错误。

Answer 1

这是因为你试图反序列化的对象不正确，你应该尝试下面的类:

public class Rootobject
{
    [JsonProperty("odata.metadata")]
    public string odatametadata { get; set; }
    public Value[] value { get; set; }
}

public class Value
{
    public string ItemCode { get; set; }
    public string ItemName { get; set; }
    public float QuantityOnStock { get; set; }
}

var items = JsonConvert.DeserializeObject<Rootobject>(json);

输出: