c# - 如何从复杂的 Json 对象中获取值？

Question

我正在尝试从 Json 对象中获取值，所有这些对象都像这样形成: http://services.runescape.com/m=itemdb_rs/api/catalogue/detail.json?item=4798

我尝试了几个库，但没有一个以我想要的方式产生。我想将值放入特定的数据成员中。

这是我最后一次尝试，它运行了，但我的数据成员似乎没有获得任何值。

namespace JSON_Data
{
    public partial class Form1 : Form
        public Form1()
        {
            InitializeComponent();
            string jsonString = @"{""item"":{""icon"":""http://services.runescape.com/m=itemdb_rs/4996_obj_sprite.gif?id=4798"",""icon_large"":""http://services.runescape.com/m=itemdb_rs/4996_obj_big.gif?id=4798"",""id"":4798,""type"":""Ammo"",""typeIcon"":""http://www.runescape.com/img/categories/Ammo"",""name"":""Adamant brutal"",""description"":""Blunt adamantite arrow...ouch"",""current"":{""trend"":""neutral"",""price"":305},""today"":{""trend"":""neutral"",""price"":0},""members"":""true"",""day30"":{""trend"":""positive"",""change"":""+2.0%""},""day90"":{""trend"":""positive"",""change"":""+8.0%""},""day180"":{""trend"":""positive"",""change"":""+23.0%""}}}";

            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Item));
            MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
            Item obj = (Item)ser.ReadObject(stream);
        }
    }
}

这是我的类“Item”的样子

namespace JSON_Data
{
    [DataContract]
    public class Item
    {
        [DataMember]
        public string Icon { get; set; }
        [DataMember]
        public string Icon_large { get; set; }
        [DataMember]
        public int Id { get; set; }
        [DataMember]
        public string Name { get; set; }
        [DataMember]
        public string Description { get; set; }
        [DataMember]
        public string Members { get; set; }
    }
}

Answer 1

如果您可以尝试 Newtonsoft，我可以提供一种方法..据我所知，它是非常好的和更好的方法

var ob = Newtonsoft.Json.JsonConvert.DeserializeObject<dynamic>(jsonString);
Item a = ((JObject)ob["item"]).ToObject<Item>();