Question

我需要从这个JSON文件中获取数据，但是我无法使用C＃和Newtonsoft获取数据。任何人都可以帮我解决这个问题吗？数据来自汤森路透API。我尝试了其他文章，但它总是失败。

JSON：

{
  "RequestKey": {
    "NameType": "RIC",
    "Service": "IDN",
    "Name": "AEDMYR=R"
  },
  "QoS": {
    "TimelinessInfo": {
      "TimeInfo": 0,
      "Timeliness": "REALTIME"
    },
    "RateInfo": {
      "TimeInfo": 0,
      "Rate": "TICK_BY_TICK"
    }
  },
  "Status": {
    "StatusMsg": "OK",
    "StatusCode": 0
  },
  "Fields": {
    "Field": [
      {
        "Name": "HIGH_1",
        "DataType": "Double",
        "Double": 117.3428
      },
      {
        "Name": "LOW_1",
        "DataType": "Double",
        "Double": 117.0143
      },
      {
        "Name": "YRHIGH",
        "DataType": "Double",
        "Double": 121.8861
      },
      {
        "Name": "YRLOW",
        "DataType": "Double",
        "Double": 95.205
      },
      {
        "Name": "HIGH_TIME",
        "DataType": "Utf8String",
        "Utf8String": "03:33"
      },
      {
        "Name": "LOW_TIME",
        "DataType": "Utf8String",
        "Utf8String": "02:55"
      },
      {
        "Name": "BKGD_REF",
        "DataType": "Utf8String",
        "Utf8String": "UAEDir/MalayRgt"
      },
      {
        "Name": "GEN_TEXT16",
        "DataType": "Utf8String",
        "Utf8String": "AED vs MYR"
      },
      {
        "Name": "GV2_TEXT",
        "DataType": "Utf8String",
        "Utf8String": "AEDMYR"
      },
      {
        "Name": "VALUE_TS1",
        "DataType": "Utf8String",
        "Utf8String": "08:48:00"
      },
      {
        "Name": "VALUE_TS2",
        "DataType": "Utf8String",
        "Utf8String": "08:47:01"
      },
      {
        "Name": "VALUE_TS3",
        "DataType": "Utf8String",
        "Utf8String": "08:46:01"
      },
      {
        "Name": "MONTH_HIGH",
        "DataType": "Double",
        "Double": 118.0954
      },
      {
        "Name": "MONTH_LOW",
        "DataType": "Double",
        "Double": 114.0702
      },
      {
        "Name": "WEEK_HIGH",
        "DataType": "Double",
        "Double": 117.3428
      },
      {
        "Name": "WEEK_LOW",
        "DataType": "Double",
        "Double": 116.8654
      },
      {
        "Name": "SCALING",
        "DataType": "Utf8String",
        "Utf8String": "100"
      },
      {
        "Name": "CF_ASK",
        "DataType": "Double",
        "Double": 117.4272
      },
      {
        "Name": "CF_BID",
        "DataType": "Double",
        "Double": 117.2443
      },
      {
        "Name": "CF_CLOSE",
        "DataType": "Double",
        "Double": 116.7792
      },
      {
        "Name": "CF_DATE",
        "DataType": "Utf8String",
        "Utf8String": "23 DEC 2015"
      },
      {
        "Name": "CF_HIGH",
        "DataType": "Double",
        "Double": 117.3428
      },
      {
        "Name": "CF_LAST",
        "DataType": "Double",
        "Double": 117.2443
      },
      {
        "Name": "CF_LOW",
        "DataType": "Double",
        "Double": 117.0143
      },
      {
        "Name": "CF_NETCHNG",
        "DataType": "Double",
        "Double": 0.4651
      },
      {
        "Name": "CF_OPEN",
        "DataType": "Double",
        "Double": 116.7792
      },
      {
        "Name": "CF_SOURCE",
        "DataType": "Utf8String",
        "Utf8String": "ThomRtrs"
      },
      {
        "Name": "CF_TICK",
        "DataType": "Utf8String",
        "Utf8String": "⇧"
      },
      {
        "Name": "CF_TIME",
        "DataType": "Utf8String",
        "Utf8String": "08:48:00"
      },
      {
        "Name": "CF_NAME",
        "DataType": "Utf8String",
        "Utf8String": "UAEDir/MalayRgt"
      },
      {
        "Name": "BQOS",
        "DataType": "Utf8String",
        "Utf8String": "0"
      },
      {
        "Name": "PQOS",
        "DataType": "Utf8String",
        "Utf8String": "RT"
      },
      {
        "Name": "ConcreteService",
        "DataType": "Utf8String",
        "Utf8String": "IDN_FD3"
      },
      {
        "Name": "MSG_TYPE",
        "DataType": "Int32",
        "Int32": 0
      },
      {
        "Name": "REC_STATUS",
        "DataType": "Int32",
        "Int32": 0
      }
    ]
  }
}

反序列化代码：

var result = "";
using (var objStreamReader = new StreamReader("RetrieveItem_Response_2.json"))
{
   result = objStreamReader.ReadToEnd();
}
JObject joResponse = JObject.Parse(result);
JArray joArray = (JArray)(joResponse["RetrieveItem_Response_2"]["ItemResponse"]);
List<Rootobject> objRootobject = JsonConvert.DeserializeObject<List<Rootobject>>(joArray.ToString());

C＃Classes：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public class Rootobject
{
    public Requestkey RequestKey { get; set; }
    public Qos QoS { get; set; }
    public Status Status { get; set; }
    public Fields Fields { get; set; }
}

public class Requestkey
{
    public string NameType { get; set; }
    public string Service { get; set; }
    public string Name { get; set; }
}

public class Qos
{
    public Timelinessinfo TimelinessInfo { get; set; }
    public Rateinfo RateInfo { get; set; }
}

public class Timelinessinfo
{
    public int TimeInfo { get; set; }
    public string Timeliness { get; set; }
}

public class Rateinfo
{
    public int TimeInfo { get; set; }
    public string Rate { get; set; }
}

public class Status
{
    public string StatusMsg { get; set; }
    public int StatusCode { get; set; }
}

public class Fields
{
    public Field[] Field { get; set; }
}

public class Field
{
    public string Name { get; set; }
    public string DataType { get; set; }
    public float Double { get; set; }
    public string Utf8String { get; set; }
    public int Int32 { get; set; }
}

Answer 1

看起来您已正确定义了所有类。要反序列化JSON，您只需执行此操作：

Rootobject obj = JsonConvert.DeserializeObject<Rootobject>(result);

您可以转储字段值，如下所示：

foreach (Field f in obj.Fields.Field)
{
    string value;
    switch (f.DataType)
    {
        case "Utf8String": value = f.Utf8String; break;
        case "Double": value = f.Double.ToString(); break;
        case "Int32": value = f.Int32.ToString(); break;
        default: value = "(unknown)"; break;
    }
    Console.WriteLine(f.Name + ": " + value);
}

小提琴：https://dotnetfiddle.net/JD3jPD

从Thomson Reuters API反序列化JSON数据

1 个答案: