配置

创建一个MapperConfiguration并通过构造函数初始化配置：

var config = new MapperConfiguration(cfg => {
    cfg.CreateMap<Foo, Bar>();
    cfg.AddProfile<FooProfile>();
});

Profile

通过Profile来组织各种映射是一个不错的方法。

public class OrganizationProfile : Profile
{
    public OrganizationProfile()
    {
        CreateMap<Foo, FooDto>();
        // Use CreateMap... Etc.. here (Profile methods are the same as configuration methods)
    }
}
// How it was done in 4.x - as of 5.0 this is obsolete:
// public class OrganizationProfile : Profile
// {
//     protected override void Configure()
//     {
//         CreateMap<Foo, FooDto>();
//     }
// }

程序集扫描

var config = new MapperConfiguration(cfg => {
    cfg.AddMaps(myAssembly);
});
var configuration = new MapperConfiguration(cfg => cfg.AddMaps(myAssembly));
// Can also use assembly names:
var configuration = new MapperConfiguration(cfg =>
    cfg.AddMaps(new [] {
        "Foo.UI",
        "Foo.Core"
    });
);
// Or marker types for assemblies:
var configuration = new MapperConfiguration(cfg =>
    cfg.AddMaps(new [] {
        typeof(HomeController),
        typeof(Entity)
    });
);

AutoMapper 会扫描指定程序集中继承Profile的类。

名称约定

var configuration = new MapperConfiguration(cfg => {
  cfg.SourceMemberNamingConvention = new LowerUnderscoreNamingConvention();
  cfg.DestinationMemberNamingConvention = new PascalCaseNamingConvention();
});
public class OrganizationProfile : Profile
{
  public OrganizationProfile()
  {
    SourceMemberNamingConvention = new LowerUnderscoreNamingConvention();
    DestinationMemberNamingConvention = new PascalCaseNamingConvention();
    //Put your CreateMap... Etc.. here
  }
}

更换字符

public class Source
{
    public int Value { get; set; }
    public int Ävíator { get; set; }
    public int SubAirlinaFlight { get; set; }
}
public class Destination
{
    public int Value { get; set; }
    public int Aviator { get; set; }
    public int SubAirlineFlight { get; set; }
}
var configuration = new MapperConfiguration(c =>
{
    c.ReplaceMemberName("Ä", "A");
    c.ReplaceMemberName("í", "i");
    c.ReplaceMemberName("Airlina", "Airline");
});

识别前缀/后缀

public class Source {
    public int frmValue { get; set; }
    public int frmValue2 { get; set; }
}
public class Dest {
    public int Value { get; set; }
    public int Value2 { get; set; }
}
var configuration = new MapperConfiguration(cfg => {
    cfg.RecognizePrefixes("frm");
    cfg.CreateMap<Source, Dest>();
});
configuration.AssertConfigurationIsValid();

属性过滤

var configuration = new MapperConfiguration(cfg =>
{
    // don't map any fields
    cfg.ShouldMapField = fi => false;
    // map properties with a public or private getter
    cfg.ShouldMapProperty = pi =>
        pi.GetMethod != null && (pi.GetMethod.IsPublic || pi.GetMethod.IsPrivate);
});

直接编译

由于表达式编译可能会占用一些资源，因此AutoMapper会在第一个地图上延迟编译类型地图计划。但是，这种行为并不总是令人满意的，因此您可以告诉AutoMapper直接编译其映射

var configuration = new MapperConfiguration(cfg => {});
configuration.CompileMappings();