c# - 将自定义数据插入从 DataModel 序列化的 JSON

Question

我有数据模型类，我正在将其序列化为 JSON，以便能够将序列化的 JSON 发布到 Web 服务。数据模型如下所示:

using Newtonsoft.Json;
namespace WebCrawler.Models {
    [JsonObject(MemberSerialization.OptIn)]
    public class LinkDataViewModel
    {
        [JsonProperty]
        public string Title { get; set; }
        .....
        [JsonProperty]
        public string CustomerID { get; set; }
    }
}

我应该如何将数据模型类更改为序列化的 JSON，如下所示:

{"PostPropertyRequest": {SerializedDataModel}}

Answer 1

您可以用这种方式编写您的自定义 json(使您的类从 JsonConverter 派生并覆盖 3 个方法)

using Newtonsoft.Json;
namespace WebCrawler.Models {
    [JsonObject(MemberSerialization.OptIn)]
    public class LinkDataViewModel : JsonConverter
    {
        [JsonProperty]
        public string Title { get; set; }
        .....
        [JsonProperty]
        public string CustomerID { get; set; }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue,            JsonSerializer serializer)
        {
           throw new NotImplementedException();
        }

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
           if (value == null)
           {
             serializer.Serialize(writer, null);
             return;
            }      
            var properties = value.GetType().GetProperties();
            writer.WriteStartObject();
            //your custom property
            writer.WritePropertyName("PostPropertyRequest");
            writer.WriteStartObject();
            foreach (var property in properties)
            {
              // write property name
              writer.WritePropertyName(property.Name);
              serializer.Serialize(writer, property.GetValue(value, null));
            }
            writer.WriteEndObject();
            writer.WriteEndObject();
        }
    }
}

引用这个很好article用于文档