如何使用 Simple Injector 3 注册 AutoMapper 4

Question

我有一个 Azure 网络作业，它解析包含类别的 CSV 并将结果映射到常规对象。

我试图通过记忆从一个项目中复制 AutoMapper + Simple Injector 配置，但出现错误：

AutoMapper.AutoMapperMappingException : Missing type map configuration or unsupported mapping.

Mapping types:

CsvCategory -> Category

WebJobs.Data.CsvCategory -> Data.Category

Destination path: Category

Source value: WebJobs.Data.CsvCategory

container.RegisterSingleton<ITypeMapFactory, TypeMapFactory>();
container.RegisterCollection<IObjectMapper>(MapperRegistry.Mappers);
container.RegisterSingleton<ConfigurationStore>();
container.RegisterSingleton<IConfiguration, ConfigurationStore>();
container.RegisterSingleton<IConfigurationProvider, ConfigurationStore>();
container.RegisterSingleton<IMappingEngine>(Mapper.Engine);

Mapper.Initialize(c =>
{
    c.ConstructServicesUsing(container.GetInstance);
    c.AddProfile<CsvCategoryMappingProfile>();
});

public sealed class CsvCategoryMappingProfile : Profile
{
    protected override void Configure() {
        CreateMap<CsvCategory, Category>();
    }

    public override string ProfileName {
        get { return typeof(CsvCategoryMappingProfile).Name; }
    }
}

public sealed class MappingCategoryConverter : IConverter<CsvCategory, Category>
{
    private readonly IMappingEngine _mapper;

    public MappingCategoryConverter(IMappingEngine mapper)
    {
        _mapper = mapper;
    }

    public Category Convert(CsvCategory category)
    {
        return _mapper.Map<Category>(category);
    }
}

我可以通过用这一行替换整个容器配置来修复它：

Mapper.AddProfile<CsvCategoryMappingProfile>();

但我想了解问题出在哪里，我在哪里做错了。

Answer 1

我不知道如何正确使用 Mapper.Initialize()，明显的方法行不通。

解决方法如下：

Mapper.Initialize(x =>
{
    var config = container.GetInstance<IConfiguration>();
    config.ConstructServicesUsing(container.GetInstance);
    config.AddProfile<CsvCategoryMappingProfile>();
});

因为在 x 你得到了 IConfiguration 的另一个实例。

如何使用 Simple Injector 3 注册 AutoMapper 4

How to register AutoMapper 4 with Simple Injector 3

c#

dependency-injection

automapper

simple-injector

automapper-4