反序列化不同对象类型的数组
Deserializing an array of different object types
使用 Json.NET 库,我在反序列化一些作为数组返回的 json 时遇到了问题。 json 是一个数组,包含一些分页信息作为对象和国家/地区对象数组。这是返回的示例 json:
[
{
"page": 1,
"pages": 6,
"per_page": "50",
"total": 262
},
[
{
"id": "ABW",
"iso2Code": "AW",
"name": "Aruba",
"region": {
"id": "LCN",
"value": "Latin America & Caribbean (all income levels)"
},
"adminregion": {
"id": "",
"value": ""
},
"incomeLevel": {
"id": "NOC",
"value": "High income: nonOECD"
},
"lendingType": {
"id": "LNX",
"value": "Not classified"
},
"capitalCity": "Oranjestad",
"longitude": "-70.0167",
"latitude": "12.5167"
}
]
]
我正在尝试反序列化为以下类型:
class CountriesQueryResults
{
public PagingInfo PageInfo { get; set; }
public List<CountryInfo> Countries { get; set; }
}
class PagingInfo
{
public int Page { get; set; }
public int Pages { get; set; }
[JsonProperty("per_page")]
public int ResultsPerPage { get; set; }
public int Total { get; set; }
}
class CountryInfo
{
public string Id { get; set; }
public string Iso2Code { get; set; }
public string Name { get; set; }
public string Longitude { get; set; }
public string Latitude { get; set; }
public string CapitalCity { get; set; }
public CompactIdentifier Region { get; set; }
public CompactIdentifier AdminRegion { get; set; }
public CompactIdentifier IncomeLevel { get; set; }
public CompactIdentifier LendingType { get; set; }
}
class CompactIdentifier
{
public string Id { get; set; }
public string Value { get; set; }
}
我这样调用 DeserializeObject:
var data = JsonConvert.DeserializeObject<List<CountriesQueryResults>>(response);
我收到以下错误:
Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'CountriesQueryResults' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.
我一直试图从 the documentation 那里得到答案,但我似乎无法弄清楚。任何帮助将不胜感激。
因为你的json是这样的[ {....} , [{....}] ]
,你只能将它反序列化为一个对象数组(第一项是一个对象,第二项是另一个数组)。
我认为将其转换为 C# 对象的最简单方法是:
var jArr = JArray.Parse(jsonstr);
var pageInfo = jArr[0].ToObject<PagingInfo>();
var countryInfos = jArr[1].ToObject<List<CountryInfo>>();
Class 定义为:
public class PagingInfo
{
public int page { get; set; }
public int pages { get; set; }
[JsonProperty("per_page")]
public int ResultsPerPage { get; set; }
public int total { get; set; }
}
public class Region
{
public string id { get; set; }
public string value { get; set; }
}
public class AdminRegion
{
public string id { get; set; }
public string value { get; set; }
}
public class IncomeLevel
{
public string id { get; set; }
public string value { get; set; }
}
public class LendingType
{
public string id { get; set; }
public string value { get; set; }
}
public class CountryInfo
{
public string id { get; set; }
public string iso2Code { get; set; }
public string name { get; set; }
public Region region { get; set; }
public AdminRegion adminregion { get; set; }
public IncomeLevel incomeLevel { get; set; }
public LendingType lendingType { get; set; }
public string capitalCity { get; set; }
public string longitude { get; set; }
public string latitude { get; set; }
}
PS:您可以根据需要将 属性 名称的第一个字符更改为大写。我使用 http://json2csharp.com/ 自动生成那些 类.
使用 Json.NET 库,我在反序列化一些作为数组返回的 json 时遇到了问题。 json 是一个数组,包含一些分页信息作为对象和国家/地区对象数组。这是返回的示例 json:
[
{
"page": 1,
"pages": 6,
"per_page": "50",
"total": 262
},
[
{
"id": "ABW",
"iso2Code": "AW",
"name": "Aruba",
"region": {
"id": "LCN",
"value": "Latin America & Caribbean (all income levels)"
},
"adminregion": {
"id": "",
"value": ""
},
"incomeLevel": {
"id": "NOC",
"value": "High income: nonOECD"
},
"lendingType": {
"id": "LNX",
"value": "Not classified"
},
"capitalCity": "Oranjestad",
"longitude": "-70.0167",
"latitude": "12.5167"
}
]
]
我正在尝试反序列化为以下类型:
class CountriesQueryResults
{
public PagingInfo PageInfo { get; set; }
public List<CountryInfo> Countries { get; set; }
}
class PagingInfo
{
public int Page { get; set; }
public int Pages { get; set; }
[JsonProperty("per_page")]
public int ResultsPerPage { get; set; }
public int Total { get; set; }
}
class CountryInfo
{
public string Id { get; set; }
public string Iso2Code { get; set; }
public string Name { get; set; }
public string Longitude { get; set; }
public string Latitude { get; set; }
public string CapitalCity { get; set; }
public CompactIdentifier Region { get; set; }
public CompactIdentifier AdminRegion { get; set; }
public CompactIdentifier IncomeLevel { get; set; }
public CompactIdentifier LendingType { get; set; }
}
class CompactIdentifier
{
public string Id { get; set; }
public string Value { get; set; }
}
我这样调用 DeserializeObject:
var data = JsonConvert.DeserializeObject<List<CountriesQueryResults>>(response);
我收到以下错误:
Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'CountriesQueryResults' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.
我一直试图从 the documentation 那里得到答案,但我似乎无法弄清楚。任何帮助将不胜感激。
因为你的json是这样的[ {....} , [{....}] ]
,你只能将它反序列化为一个对象数组(第一项是一个对象,第二项是另一个数组)。
我认为将其转换为 C# 对象的最简单方法是:
var jArr = JArray.Parse(jsonstr);
var pageInfo = jArr[0].ToObject<PagingInfo>();
var countryInfos = jArr[1].ToObject<List<CountryInfo>>();
Class 定义为:
public class PagingInfo
{
public int page { get; set; }
public int pages { get; set; }
[JsonProperty("per_page")]
public int ResultsPerPage { get; set; }
public int total { get; set; }
}
public class Region
{
public string id { get; set; }
public string value { get; set; }
}
public class AdminRegion
{
public string id { get; set; }
public string value { get; set; }
}
public class IncomeLevel
{
public string id { get; set; }
public string value { get; set; }
}
public class LendingType
{
public string id { get; set; }
public string value { get; set; }
}
public class CountryInfo
{
public string id { get; set; }
public string iso2Code { get; set; }
public string name { get; set; }
public Region region { get; set; }
public AdminRegion adminregion { get; set; }
public IncomeLevel incomeLevel { get; set; }
public LendingType lendingType { get; set; }
public string capitalCity { get; set; }
public string longitude { get; set; }
public string latitude { get; set; }
}
PS:您可以根据需要将 属性 名称的第一个字符更改为大写。我使用 http://json2csharp.com/ 自动生成那些 类.