从JSON反序列化期间忽略字段



假设我想将所有这些数据都放入一个c#对象中,但"totalDamageTaken"除外,那么最好的方法是什么?

{
   "modifyDate": 1414968686000,
   "champions": [
      {
         "id": 76,
         "stats": {
            "totalDeathsPerSession": 294,
            "totalSessionsPlayed": 44,
            "totalDamageTaken": 1065678,
         }
      },
      {
         "id": 9,
         "stats": {
            "totalDeathsPerSession": 7,
            "totalSessionsPlayed": 1,
            "totalDamageTaken": 45382,
         }
      },
      {
         "id": 10,
         "stats": {
            "totalDeathsPerSession": 65,
            "totalSessionsPlayed": 12,
            "totalDamageTaken": 302252,
         }
      },
      {
         "id": 7,
         "stats": {
            "totalDeathsPerSession": 40,
            "totalSessionsPlayed": 4,
            "totalDamageTaken": 98114,
         }
      }
   ],
   "summonerId": 24609204
}

我走的路对吗?

public class champion
{
    public int id { get; set; }
    public champion (int id)
    {
        this.id = id;
    }
}
public class getStats 
{
    public int id { get; set; }
    public long moddate { get; set; }
    public static int length { get; set; }
    public List<champion> champions;
    public getStats(string json)
    {
        JObject jobject = JObject.Parse(json);
        id = (int)jobject["summonerId"];
        moddate = (long)jobject["modifyDate"];
    }
}

我尝试过反序列化、selecttoken、jarrays和我见过的各种东西。

Json.NET.

在将[JsonIgnore]属性添加到totalDamageTaken之后,使用JsonConvert.Deserialize(json);进行反序列化。就这么简单。

Json.NET是一个很好的选择,就像Jeroen Vannevel提到的那样,它比.NET框架的Json反序列化器宽容得多。

如果不想使用外部库,可以在项目(.NET Framework的一部分)中包含对System.Runtime.Serialization的引用,并使用DataContractJsonSerializer(System.RuntimeSerialization.Json.DataContractJson序列化器)。

首先用[DataContract]属性装饰类,用[DataMember]属性装饰每个属性,如下所示。只包括您想要反序列化的属性(不要在stats类上包括totalDamageTaken属性)

[DataContract]
public class root
{
    [DataMember]
    public long modifyDate { get; set; }
    [DataMember]
    public int summonerId { get; set; }
    [DataMember]
    public IEnumerable<champion> champions { get; set; }
}
[DataContract]
public class champion
{
    [DataMember]
    public int id { get; set; }
    [DataMember]
    public stats stats { get; set; }
}
[DataContract]
public class stats
{
    [DataMember]
    public int totalDeathsPerSession { get; set; }
    [DataMember]
    public int totalSessionsPlayed { get; set; }
}

然后调用DataContractJsonSerializer

// From text
string text = // Json text as string
//// This is kind of a hack, however you do it it's easiest to work with a stream
byte[] chars = text.ToCharArray().Select(c => Convert.ToByte(c)).ToArray();
using (Stream stream = new MemoryStream(chars))
{
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(root));
    root result = (root)serializer.ReadObject(stream);
}
// From web request
HttpWebResponse request = // Get your request object back from a WebRequest object
using (Stream stream = request.GetResponseStream())
{
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(root));
    root result = (root)serializer.ReadObject(stream);
}

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