JSON.net反序列化对象嵌套数据

时间：2018-10-03 03:49:19

标签： c# json elasticsearch json.net

我正在使用SwiftType Elastic Search + C＃并遇到反序列化响应的问题，原因是SwiftType将所有字段都返回为具有raw属性（https://swiftype.com/documentation/app-search/api/search）的对象例如：

{
  "meta": {
    "warnings": [],
    "page": {
      "current": 1,
      "total_pages": 1,
      "total_results": 2,
      "size": 10
    },
    "request_id": "6887a53f701a59574a0f3a7012e01aa8"
  },
  "results": [
    {
      "phone": {
        "raw": 3148304280.0
      },
      "accounts_balance_ach": {
        "raw": 27068128.71
      },
      "accounts_balance_pending": {
        "raw": "46809195.64"
      },
      "email": {
        "raw": "Brisa34@hotmail.com"
      },
      "accounts_count": {
        "raw": 6.0
      },
      "id": {
        "raw": "c98808a2-d7d6-4444-834d-2fe4f6858f6b"
      },
      "display_name": {
        "raw": "The Johnstons"
      },
      "type": {
        "raw": "Couple"
      },
      "advisor_email": {
        "raw": "Cornelius_Schiller14@hotmail.com"
      },
      "created_at": {
        "raw": "2018-10-02T10:42:07+00:00"
      },
      "source": {
        "raw": "event"
      },
      "accounts_balance": {
        "raw": 43629003.47
      },
      "accounts_donations": {
        "raw": 38012278.75
      },
      "advisor_name": {
        "raw": "Cloyd Jakubowski"
      },
      "_meta": {
        "score": 0.42934617
      }
    },
    {
      "phone": {
        "raw": 2272918612.0
      },
      "accounts_balance_ach": {
        "raw": 35721452.35
      },
      "accounts_balance_pending": {
        "raw": "35117465.2"
      },
      "email": {
        "raw": "Ruby87@yahoo.com"
      },
      "accounts_count": {
        "raw": 1.0
      },
      "id": {
        "raw": "687af11f-0f73-4112-879c-1108303cb07a"
      },
      "display_name": {
        "raw": "Kennith Johnston"
      },
      "type": {
        "raw": "Individual"
      },
      "advisor_email": {
        "raw": "Evangeline_Wisoky92@hotmail.com"
      },
      "created_at": {
        "raw": "2018-10-02T16:16:02+00:00"
      },
      "source": {
        "raw": "website"
      },
      "accounts_balance": {
        "raw": 23063874.19
      },
      "accounts_donations": {
        "raw": 33025175.79
      },
      "advisor_name": {
        "raw": "Ernie Mertz"
      },
      "_meta": {
        "score": 0.39096162
      }
    }
  ]
}

我需要将每个键映射到其值，例如results [0] .email =“ Brisa34@hotmail.com”;

我看到了自定义转换器的一个有前途的选择：JSON.NET deserialize JSON object stored as property，但想确保在采用冗长的方法之前没有更动态的方法来执行此操作。

3 个答案:

答案 0 :(得分：4)

我建议使用Can I specify a path in an attribute to map a property in my class to a child property in my JSON?中的JsonPathConverter类。这样，您就可以声明一个强类型的Result类，然后轻松地将每个属性映射到JSON中相应的raw子值的值，而不必声明很多笨拙的单值代码，属性类。

如下所示声明您的模型。请注意，Result类需要在其上具有[JsonConverter]属性才能将其绑定到JsonPathConverter（否则，属性路径将不起作用，并且您将在属性中获得默认值）。 

public class RootObject
{
    public List<Result> results { get; set; }
}

[JsonConverter(typeof(JsonPathConverter))]
public class Result
{
    [JsonProperty("phone.raw")]
    public string Phone { get; set; }

    [JsonProperty("accounts_balance_ach.raw")]
    public decimal AccountsBalanceAch { get; set; }

    [JsonProperty("accounts_balance_pending.raw")]
    public decimal AccountsBalancePending { get; set; }

    [JsonProperty("email.raw")]
    public string Email { get; set; }

    [JsonProperty("accounts_count.raw")]
    public decimal AccountsCount { get; set; }

    [JsonProperty("id.raw")]
    public string Id { get; set; }

    [JsonProperty("display_name.raw")]
    public string DisplayName { get; set; }

    [JsonProperty("type.raw")]
    public string Type { get; set; }

    [JsonProperty("advisor_email.raw")]
    public string AdvisorEmail { get; set; }

    [JsonProperty("created_at.raw")]
    public string CreatedAt { get; set; }

    [JsonProperty("source.raw")]
    public string Source { get; set; }

    [JsonProperty("accounts_balance.raw")]
    public decimal AccountsBalance { get; set; }

    [JsonProperty("accounts_donations.raw")]
    public decimal AccountsDonations { get; set; }

    [JsonProperty("advisor_name.raw")]
    public string AdvisorName { get; set; }

    [JsonProperty("_meta.score")]
    public decimal MetaScore { get; set; }
}

然后您可以照常反序列化：

var root = JsonConvert.DeserializeObject<RootObject>(json);

这是一个有效的演示：https://dotnetfiddle.net/wYxwIF

答案 1 :(得分：1)

最动态的方式是使用The Newtonsoft JObejct class。

它将把您的JSON字符串解析为一个JSON对象供您使用，如果您没有相应的模型，则需要创建一个动态JSON对象。

例如：

language: {
        type: DataTypes.STRING,
        allowNull: false,
        get() {
            return this.getDataValue('language').split(';')
        },
        set(val)            
          {
           this.setDataValue('language',Array.isArray(val) ? val.join(','):val);

      }
  },

string json = "{ "meta": { "warnings": [], "page": { "current": 1, "total_pages": 1, "total_results": 2, "size": 10 }, "request_id": "6887a53f701a59574a0f3a7012e01aa8" }, "results": [ { "phone": { "raw": 3148304280.0 }, "accounts_balance_ach": { "raw": 27068128.71 }, "accounts_balance_pending": { "raw": "46809195.64" }, "email": { "raw": "Brisa34@hotmail.com" }, "accounts_count": { "raw": 6.0 }, "id": { "raw": "c98808a2-d7d6-4444-834d-2fe4f6858f6b" }, "display_name": { "raw": "The Johnstons" }, "type": { "raw": "Couple" }, "advisor_email": { "raw": "Cornelius_Schiller14@hotmail.com" }, "created_at": { "raw": "2018-10-02T10:42:07+00:00" }, "source": { "raw": "event" }, "accounts_balance": { "raw": 43629003.47 }, "accounts_donations": { "raw": 38012278.75 }, "advisor_name": { "raw": "Cloyd Jakubowski" }, "_meta": { "score": 0.42934617 } }, { "phone": { "raw": 2272918612.0 }, "accounts_balance_ach": { "raw": 35721452.35 }, "accounts_balance_pending": { "raw": "35117465.2" }, "email": { "raw": "Ruby87@yahoo.com" }, "accounts_count": { "raw": 1.0 }, "id": { "raw": "687af11f-0f73-4112-879c-1108303cb07a" }, "display_name": { "raw": "Kennith Johnston" }, "type": { "raw": "Individual" }, "advisor_email": { "raw": "Evangeline_Wisoky92@hotmail.com" }, "created_at": { "raw": "2018-10-02T16:16:02+00:00" }, "source": { "raw": "website" }, "accounts_balance": { "raw": 23063874.19 }, "accounts_donations": { "raw": 33025175.79 }, "advisor_name": { "raw": "Ernie Mertz" }, "_meta": { "score": 0.39096162 } } ] }" JObject result = JObject.Parse(json); 现在是一个JSON对象，您可以访问它的属性。

答案 2 :(得分：1)

您可以使用以下link将json转换为C＃类。然后可以使用Newtonsoft Json进行解析：

var jsonMessage = "{ \"meta\": {  \"warnings\": [],  \"page\": {   \"current\": 1,   \"total_pages\": 1,   \"total_results\": 2,   \"size\": 10  },  \"request_id\": \"6887a53f701a59574a0f3a7012e01aa8\" }, \"results\": [{   \"phone\": {    \"raw\": 3148304280.0   },   \"accounts_balance_ach\": {    \"raw\": 27068128.71   },   \"accounts_balance_pending\": {    \"raw\": \"46809195.64\"   },   \"email\": {    \"raw\": \"Brisa34@hotmail.com\"   },   \"accounts_count\": {    \"raw\": 6.0   },   \"id\": {    \"raw\": \"c98808a2-d7d6-4444-834d-2fe4f6858f6b\"   },   \"display_name\": {    \"raw\": \"The Johnstons\"   },   \"type\": {    \"raw\": \"Couple\"   },   \"advisor_email\": {    \"raw\": \"Cornelius_Schiller14@hotmail.com\"   },   \"created_at\": {    \"raw\": \"2018-10-02T10:42:07+00:00\"   },   \"source\": {    \"raw\": \"event\"   },   \"accounts_balance\": {    \"raw\": 43629003.47   },   \"accounts_donations\": {    \"raw\": 38012278.75   },   \"advisor_name\": {    \"raw\": \"Cloyd Jakubowski\"   },   \"_meta\": {    \"score\": 0.42934617   }  },  {   \"phone\": {    \"raw\": 2272918612.0   },   \"accounts_balance_ach\": {    \"raw\": 35721452.35   },   \"accounts_balance_pending\": {    \"raw\": \"35117465.2\"   },   \"email\": {    \"raw\": \"Ruby87@yahoo.com\"   },   \"accounts_count\": {    \"raw\": 1.0   },   \"id\": {    \"raw\": \"687af11f-0f73-4112-879c-1108303cb07a\"   },   \"display_name\": {    \"raw\": \"Kennith Johnston\"   },   \"type\": {    \"raw\": \"Individual\"   },   \"advisor_email\": {    \"raw\": \"Evangeline_Wisoky92@hotmail.com\"   },   \"created_at\": {    \"raw\": \"2018-10-02T16:16:02+00:00\"   },   \"source\": {    \"raw\": \"website\"   },   \"accounts_balance\": {    \"raw\": 23063874.19   },   \"accounts_donations\": {    \"raw\": 33025175.79   },   \"advisor_name\": {    \"raw\": \"Ernie Mertz\"   },   \"_meta\": {    \"score\": 0.39096162   }  } ]}";

var message = JsonConvert.DeserializeObject<RootObject>(jsonMessage);
Console.WriteLine(message.meta.page.current); // prints 1

public class Page
{
    public int current { get; set; }
    public int total_pages { get; set; }
    public int total_results { get; set; }
    public int size { get; set; }
}

public class Meta
{
    public List<object> warnings { get; set; }
    public Page page { get; set; }
    public string request_id { get; set; }
}

public class Phone
{
    public double raw { get; set; }
}

public class AccountsBalanceAch
{
    public double raw { get; set; }
}

public class AccountsBalancePending
{
    public string raw { get; set; }
}

public class Email
{
    public string raw { get; set; }
}

public class AccountsCount
{
    public double raw { get; set; }
}

public class Id
{
    public string raw { get; set; }
}

public class DisplayName
{
    public string raw { get; set; }
}

public class Type
{
    public string raw { get; set; }
}

public class AdvisorEmail
{
    public string raw { get; set; }
}

public class CreatedAt
{
    public DateTime raw { get; set; }
}

public class Source
{
    public string raw { get; set; }
}

public class AccountsBalance
{
    public double raw { get; set; }
}

public class AccountsDonations
{
    public double raw { get; set; }
}

public class AdvisorName
{
    public string raw { get; set; }
}

public class Meta2
{
    public double score { get; set; }
}

public class Result
{
    public Phone phone { get; set; }
    public AccountsBalanceAch accounts_balance_ach { get; set; }
    public AccountsBalancePending accounts_balance_pending { get; set; }
    public Email email { get; set; }
    public AccountsCount accounts_count { get; set; }
    public Id id { get; set; }
    public DisplayName display_name { get; set; }
    public Type type { get; set; }
    public AdvisorEmail advisor_email { get; set; }
    public CreatedAt created_at { get; set; }
    public Source source { get; set; }
    public AccountsBalance accounts_balance { get; set; }
    public AccountsDonations accounts_donations { get; set; }
    public AdvisorName advisor_name { get; set; }
    public Meta2 _meta { get; set; }
}

public class RootObject
{
    public Meta meta { get; set; }
    public List<Result> results { get; set; }
}
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