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25
4
我有以下通过 JSON 请求填充的模型类:
public class Driver
{
public string driverId { get; set; }
public string url { get; set; }
public string givenName { get; set; }
public string familyName { get; set; }
public string dateOfBirth { get; set; }
public string nationality { get; set; }
}
public class Constructor
{
public string constructorId { get; set; }
public string url { get; set; }
public string name { get; set; }
public string nationality { get; set; }
}
public class DriverStanding
{
public string position { get; set; }
public string points { get; set; }
public string wins { get; set; }
public Driver Driver { get; set; }
public List<Constructor> Constructors { get; set; }
}
public class StandingsList
{
public string season { get; set; }
public string round { get; set; }
public List<DriverStanding> DriverStandings { get; set; }
}
public class StandingsTable
{
public string season { get; set; }
public List<StandingsList> StandingsLists { get; set; }
}
public class MRData
{
public string xmlns { get; set; }
public string series { get; set; }
public string url { get; set; }
public string limit { get; set; }
public string offset { get; set; }
public string total { get; set; }
public StandingsTable StandingsTable { get; set; }
}
public class RootObject
{
public MRData MRData { get; set; }
}
然后我有一个像这样的简单类:
public class DriverResults
{
public string Season { get; set; }
public string Points { get; set; }
public List<Driver> Driver { get; set; }
}
public class Driver
{
public string FirstName { get; set; }
public string LastName { get; set; }
}
当我请求 JSON 时，第一组类被完全填充。我想从某个类中获取一些属性，例如/RootObject.MRData.StandingsTable.Season = DriverResults.Season。下面是我的属性映射
司机 map
givenName = 名字
家族名 = 姓氏
点 map
点=点
季节 map
季节=季节
这是我到目前为止尝试过的但每次都是空的:
Mapper.CreateMap<MVCF1.API.Driver, MVCF1.Models.Driver>()
.ForMember(dest => dest.FirstName, opt => opt.MapFrom(src => src.givenName))
.ForMember(dest => dest.LastName, opt => opt.MapFrom(src => src.familyName));
Mapper.CreateMap<MVCF1.API.DriverStanding, MVCF1.Models.DriverResults>()
.ForMember(dest => dest.Points, opt => opt.MapFrom(src => src.points));
Mapper.CreateMap<MVCF1.API.StandingsList, MVCF1.Models.DriverResults>()
.ForMember(dest => dest.Season, opt => opt.MapFrom(src => src.season));
Mapper.CreateMap<MVCF1.API.RootObject, MVCF1.Models.DriverResults>();
我查看了自定义类型转换器，但不确定如何通过阅读文档来使用它们。
请帮忙，谢谢。
更新:这是返回的 JSON
{
"MRData":{
"StandingsTable":{
"StandingsLists":[
{
"DriverStandings":[
{
"Constructors":[
{
"constructorId":"red_bull",
"name":"Red Bull",
"nationality":"Austrian",
"url":"http://en.wikipedia.org/wiki/Red_Bull_Racing"
}
],
"Driver":{
"dateOfBirth":"1987-07-03",
"driverId":"vettel",
"familyName":"Vettel",
"givenName":"Sebastian",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Sebastian_Vettel"
},
"points":"255",
"position":"1",
"wins":"5"
},
{
"Constructors":[
{
"constructorId":"ferrari",
"name":"Ferrari",
"nationality":"Italian",
"url":"http://en.wikipedia.org/wiki/Scuderia_Ferrari"
}
],
"Driver":{
"dateOfBirth":"1981-07-29",
"driverId":"alonso",
"familyName":"Alonso",
"givenName":"Fernando",
"nationality":"Spanish",
"url":"http://en.wikipedia.org/wiki/Fernando_Alonso"
},
"points":"245",
"position":"2",
"wins":"3"
},
{
"Constructors":[
{
"constructorId":"lotus_f1",
"name":"Lotus F1",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Lotus_F1"
}
],
"Driver":{
"dateOfBirth":"1979-10-17",
"driverId":"raikkonen",
"familyName":"Räikkönen",
"givenName":"Kimi",
"nationality":"Finnish",
"url":"http://en.wikipedia.org/wiki/Kimi_R%C3%A4ikk%C3%B6nen"
},
"points":"198",
"position":"3",
"wins":"1"
},
{
"Constructors":[
{
"constructorId":"red_bull",
"name":"Red Bull",
"nationality":"Austrian",
"url":"http://en.wikipedia.org/wiki/Red_Bull_Racing"
}
],
"Driver":{
"dateOfBirth":"1976-08-27",
"driverId":"webber",
"familyName":"Webber",
"givenName":"Mark",
"nationality":"Australian",
"url":"http://en.wikipedia.org/wiki/Mark_Webber"
},
"points":"167",
"position":"4",
"wins":"2"
},
{
"Constructors":[
{
"constructorId":"mclaren",
"name":"McLaren",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/McLaren"
}
],
"Driver":{
"dateOfBirth":"1985-01-07",
"driverId":"hamilton",
"familyName":"Hamilton",
"givenName":"Lewis",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Lewis_Hamilton"
},
"points":"165",
"position":"5",
"wins":"3"
},
{
"Constructors":[
{
"constructorId":"mclaren",
"name":"McLaren",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/McLaren"
}
],
"Driver":{
"dateOfBirth":"1980-01-19",
"driverId":"button",
"familyName":"Button",
"givenName":"Jenson",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Jenson_Button"
},
"points":"153",
"position":"6",
"wins":"2"
},
{
"Constructors":[
{
"constructorId":"ferrari",
"name":"Ferrari",
"nationality":"Italian",
"url":"http://en.wikipedia.org/wiki/Scuderia_Ferrari"
}
],
"Driver":{
"dateOfBirth":"1981-04-25",
"driverId":"massa",
"familyName":"Massa",
"givenName":"Felipe",
"nationality":"Brazilian",
"url":"http://en.wikipedia.org/wiki/Felipe_Massa"
},
"points":"95",
"position":"7",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"mercedes",
"name":"Mercedes",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Mercedes-Benz_in_Formula_One"
}
],
"Driver":{
"dateOfBirth":"1985-06-27",
"driverId":"rosberg",
"familyName":"Rosberg",
"givenName":"Nico",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Nico_Rosberg"
},
"points":"93",
"position":"8",
"wins":"1"
},
{
"Constructors":[
{
"constructorId":"lotus_f1",
"name":"Lotus F1",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Lotus_F1"
}
],
"Driver":{
"dateOfBirth":"1986-04-17",
"driverId":"grosjean",
"familyName":"Grosjean",
"givenName":"Romain",
"nationality":"French",
"url":"http://en.wikipedia.org/wiki/Romain_Grosjean"
},
"points":"90",
"position":"9",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"sauber",
"name":"Sauber",
"nationality":"Swiss",
"url":"http://en.wikipedia.org/wiki/Sauber"
}
],
"Driver":{
"dateOfBirth":"1990-01-26",
"driverId":"perez",
"familyName":"Pérez",
"givenName":"Sergio",
"nationality":"Mexican",
"url":"http://en.wikipedia.org/wiki/Sergio_P%C3%A9rez"
},
"points":"66",
"position":"10",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"sauber",
"name":"Sauber",
"nationality":"Swiss",
"url":"http://en.wikipedia.org/wiki/Sauber"
}
],
"Driver":{
"dateOfBirth":"1986-09-13",
"driverId":"kobayashi",
"familyName":"Kobayashi",
"givenName":"Kamui",
"nationality":"Japanese",
"url":"http://en.wikipedia.org/wiki/Kamui_Kobayashi"
},
"points":"58",
"position":"11",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"force_india",
"name":"Force India",
"nationality":"Indian",
"url":"http://en.wikipedia.org/wiki/Force_India"
}
],
"Driver":{
"dateOfBirth":"1987-08-19",
"driverId":"hulkenberg",
"familyName":"Hülkenberg",
"givenName":"Nico",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Nico_H%C3%BClkenberg"
},
"points":"49",
"position":"12",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"force_india",
"name":"Force India",
"nationality":"Indian",
"url":"http://en.wikipedia.org/wiki/Force_India"
}
],
"Driver":{
"dateOfBirth":"1986-04-16",
"driverId":"resta",
"familyName":"di Resta",
"givenName":"Paul",
"nationality":"Scottish",
"url":"http://en.wikipedia.org/wiki/Paul_di_Resta"
},
"points":"46",
"position":"13",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"williams",
"name":"Williams",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Williams_F1"
}
],
"Driver":{
"dateOfBirth":"1985-03-09",
"driverId":"maldonado",
"familyName":"Maldonado",
"givenName":"Pastor",
"nationality":"Venezuelan",
"url":"http://en.wikipedia.org/wiki/Pastor_Maldonado"
},
"points":"43",
"position":"14",
"wins":"1"
},
{
"Constructors":[
{
"constructorId":"mercedes",
"name":"Mercedes",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Mercedes-Benz_in_Formula_One"
}
],
"Driver":{
"dateOfBirth":"1969-01-03",
"driverId":"michael_schumacher",
"familyName":"Schumacher",
"givenName":"Michael",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Michael_Schumacher"
},
"points":"43",
"position":"15",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"williams",
"name":"Williams",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Williams_F1"
}
],
"Driver":{
"dateOfBirth":"1983-10-15",
"driverId":"bruno_senna",
"familyName":"Senna",
"givenName":"Bruno",
"nationality":"Brazilian",
"url":"http://en.wikipedia.org/wiki/Bruno_Senna"
},
"points":"30",
"position":"16",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"toro_rosso",
"name":"Toro Rosso",
"nationality":"Italian",
"url":"http://en.wikipedia.org/wiki/Scuderia_Toro_Rosso"
}
],
"Driver":{
"dateOfBirth":"1990-04-25",
"driverId":"vergne",
"familyName":"Vergne",
"givenName":"Jean-Éric",
"nationality":"French",
"url":"http://en.wikipedia.org/wiki/Jean-%C3%89ric_Vergne"
},
"points":"12",
"position":"17",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"toro_rosso",
"name":"Toro Rosso",
"nationality":"Italian",
"url":"http://en.wikipedia.org/wiki/Scuderia_Toro_Rosso"
}
],
"Driver":{
"dateOfBirth":"1989-07-01",
"driverId":"ricciardo",
"familyName":"Ricciardo",
"givenName":"Daniel",
"nationality":"Australian",
"url":"http://en.wikipedia.org/wiki/Daniel_Ricciardo"
},
"points":"10",
"position":"18",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"marussia",
"name":"Marussia",
"nationality":"Russian",
"url":"http://en.wikipedia.org/wiki/Marussia_F1"
}
],
"Driver":{
"dateOfBirth":"1982-03-18",
"driverId":"glock",
"familyName":"Glock",
"givenName":"Timo",
"nationality":"German",
"url":"http://en.wikipedia.org/wiki/Timo_Glock"
},
"points":"0",
"position":"19",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"caterham",
"name":"Caterham",
"nationality":"Malaysian",
"url":"http://en.wikipedia.org/wiki/Caterham_F1"
}
],
"Driver":{
"dateOfBirth":"1981-10-19",
"driverId":"kovalainen",
"familyName":"Kovalainen",
"givenName":"Heikki",
"nationality":"Finnish",
"url":"http://en.wikipedia.org/wiki/Heikki_Kovalainen"
},
"points":"0",
"position":"20",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"caterham",
"name":"Caterham",
"nationality":"Malaysian",
"url":"http://en.wikipedia.org/wiki/Caterham_F1"
}
],
"Driver":{
"dateOfBirth":"1984-09-08",
"driverId":"petrov",
"familyName":"Petrov",
"givenName":"Vitaly",
"nationality":"Russian",
"url":"http://en.wikipedia.org/wiki/Vitaly_Petrov"
},
"points":"0",
"position":"21",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"lotus_f1",
"name":"Lotus F1",
"nationality":"British",
"url":"http://en.wikipedia.org/wiki/Lotus_F1"
}
],
"Driver":{
"dateOfBirth":"1985-12-27",
"driverId":"ambrosio",
"familyName":"d'Ambrosio",
"givenName":"Jérôme",
"nationality":"Belgian",
"url":"http://en.wikipedia.org/wiki/J%C3%A9r%C3%B4me_d%27Ambrosio"
},
"points":"0",
"position":"22",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"marussia",
"name":"Marussia",
"nationality":"Russian",
"url":"http://en.wikipedia.org/wiki/Marussia_F1"
}
],
"Driver":{
"dateOfBirth":"1990-02-15",
"driverId":"pic",
"familyName":"Pic",
"givenName":"Charles",
"nationality":"French",
"url":"http://en.wikipedia.org/wiki/Charles_Pic"
},
"points":"0",
"position":"23",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"hrt",
"name":"HRT",
"nationality":"Spanish",
"url":"http://en.wikipedia.org/wiki/Hispania_Racing"
}
],
"Driver":{
"dateOfBirth":"1977-01-14",
"driverId":"karthikeyan",
"familyName":"Karthikeyan",
"givenName":"Narain",
"nationality":"Indian",
"url":"http://en.wikipedia.org/wiki/Narain_Karthikeyan"
},
"points":"0",
"position":"24",
"wins":"0"
},
{
"Constructors":[
{
"constructorId":"hrt",
"name":"HRT",
"nationality":"Spanish",
"url":"http://en.wikipedia.org/wiki/Hispania_Racing"
}
],
"Driver":{
"dateOfBirth":"1971-02-24",
"driverId":"rosa",
"familyName":"de la Rosa",
"givenName":"Pedro",
"nationality":"Spanish",
"url":"http://en.wikipedia.org/wiki/Pedro_de_la_Rosa"
},
"points":"0",
"position":"25",
"wins":"0"
}
],
"round":"18",
"season":"2012"
}
],
"season":"2012"
},
"limit":"30",
"offset":"0",
"series":"f1",
"total":"25",
"url":"http://ergast.com/api/f1/current/driverstandings.json",
"xmlns":"http://ergast.com/mrd/1.2"
}
}
最佳答案
按照@David 的建议运行断言时，我得到:
AutoMapper.AutoMapperConfigurationException :
Unmapped members were found. Review the types and members below.
Add a custom mapping expression, ignore, add a custom resolver, or modify the source/destination type
=================================================================================
DriverStanding -> DriverResults (Destination member list)
StackOverflow.Null.API.DriverStanding -> StackOverflow.Null.Models.DriverResults (Destination member list)
---------------------------------------------------------------------------------
Season
================================================================================
StandingsList -> DriverResults (Destination member list)
StackOverflow.Null.API.StandingsList -> StackOverflow.Null.Models.DriverResults (Destination member list)
--------------------------------------------------------------------------------
Points
Driver
=============================================================================
RootObject -> DriverResults (Destination member list)
StackOverflow.Null.API.RootObject -> StackOverflow.Null.Models.DriverResults (Destination member list)
-----------------------------------------------------------------------------
Season
Points
Driver
现在基本上你有一个对象 (MRData)，它有一个对象列表 (StandingsList)，它有一个对象列表 (DriverStanding ).我假设当您应用映射时，您希望将这 1 个复杂的 MRData 对象展平为许多 DriverResults 对象。这不是您可以直接使用配置轻松完成的事情，但您可以通过在各种对象上重新应用映射来做到这一点。
我认为您正在寻找与此解决方案类似的东西:AutoMapper and flattening nested arrays
更新 - 更新代码以满足更新后的要求。
我已经部分实现了该解决方案。
MVCF1Profile.cs
namespace MVCF1
{
using System.Collections.Generic;
using AutoMapper;
public class MVCF1Profile : Profile
{
public override string ProfileName
{
get { return "MVCF1Profile"; }
}
protected override void Configure()
{
AllowNullDestinationValues = true;
AllowNullCollections = true;
CreateMap<API.Driver, Models.Driver>()
.ForMember(dest => dest.FirstName, opt => opt.MapFrom(src => src.givenName))
.ForMember(dest => dest.LastName, opt => opt.MapFrom(src => src.familyName));
CreateMap<API.StandingsList, Models.DriverResults>()
.ForMember(dest => dest.Driver, opt => opt.MapFrom(src => src.DriverStandings.Select(ds => Mapper.Map<API.Driver, Models.Driver>(ds.Driver))))
.ForMember(dest => dest.Points, opt => opt.Ignore());
}
}
}
单元测试:
[Test]
public void AutoMapper_Configuration_IsValid()
{
Mapper.Initialize(m => m.AddProfile<MVCF1Profile>());
Mapper.AssertConfigurationIsValid();
}
[Test]
public void AutoMapper_DriverMapping_IsValid()
{
Mapper.Initialize(m => m.AddProfile<MVCF1Profile>());
Mapper.AssertConfigurationIsValid();
// Convert JSON string from question to RootObject instance
var data = GetData();
var ds = data.MRData.StandingsTable.StandingsLists.First();
var driverResults = Mapper.Map<StandingsList, Models.DriverResults>(ds);
Assert.That(driverResults, Is.Not.Null);
Assert.That(driverResults.Points, Is.Null);
Assert.That(driverResults.Season, Is.EqualTo("2012"));
Assert.That(driverResults.Driver, Is.Not.Null);
Assert.That(driverResults.Driver.Count(), Is.EqualTo(25));
}
作为引用，我的 GetData 是(删除了上面的 json 字符串)
private RootObject GetData()
{
string jsonMessage;
#region Initialise String
jsonMessage = @"";
#endregion
var data = JsonConvert.DeserializeObject<RootObject>(jsonMessage);
Assert.That(data, Is.Not.Null);
Assert.That(data, Is.InstanceOf<RootObject>());
Assert.That(data.MRData, Is.Not.Null);
Assert.That(data.MRData, Is.InstanceOf<MRData>());
Assert.That(data.MRData.StandingsTable, Is.Not.Null);
Assert.That(data.MRData.StandingsTable, Is.InstanceOf<StandingsTable>());
return data;
}
您只需再次调用映射器即可根据需要为更高级别的对象应用映射。例如，一旦你修复了你可以做的配置:
Mapper.Map(root.MRData.StandingsTable, result);
这会将 StandingsTable 中的适当字段映射到结果目标。
关于c# - Automapper 将多个嵌套类映射到一个具有各种属性的类，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/13405899/
25
4
0
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我想自定义 AutoMapper 转换类型的方式，而不丢失 AutoMapper 已实现的功能。 我可以创建一个自定义 ITypeConverter实例，但我不知道如何调用默认行为。 Mapper.C
从存储过程返回的数据有 3 列重复数据: Name | Address | PhoneNumber | UniqueCol1 | UniqueCol2 理想情况下，我希望我的模型通过仅存储一次值并收集
当我使用 List 属性映射对象时，默认情况下 Automapper 会将目标对象的 list 属性设置为源对象的实例。 有没有办法让自动映射器创建一个新列表并复制项目但不复制列表实例？ 我希望通过以
如果我有这组源类怎么办: namespace Source { class CA { public CB B { get; set; } } class
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