简单注入器注册 IMappingEngine（AutoMapper）

Question

我以前使用过Autofac，但现在想尝试SimpleInjector。我的问题是，在调用mappingEngine方法时出现以下错误：

缺少类型映射配置或不支持的映射。

映射类型： Something -> SomethingDto 目标路径： IEnumerable`1[0]

源值：

_mappingEngine.Map<IEnumerable<SomethingDto>>(IEnumerableOfSomething);

^-- doesn't work

Mapper.Map<IEnumerable<SomethingDto>>(IEnumerableOfSomething);

^-- works (That's not what I want)

Mapper.Map不是我想要的。我根据这里的内容注册了Automapper:

使用Simple Injector替换Ninject

container.Register<ITypeMapFactory, TypeMapFactory>();
container.RegisterAll<IObjectMapper>(
    MapperRegistry.AllMappers());
container.RegisterSingle<ConfigurationStore>();
container.Register<IConfiguration>(() => 
    container.GetInstance<ConfigurationStore>());
container.Register<IConfigurationProvider>(() => 
    container.GetInstance<ConfigurationStore>());
container.Register<IMappingEngine, MappingEngine>();

---

Mapper.Initialize(x =>
            {
                var profiles = container.GetAllInstances<Profile>();

                foreach (var profile in profiles)
                {
                    x.AddProfile(profile);
                }
            });

        Mapper.AssertConfigurationIsValid();

我的问题是，如何在SimpleInjector中注册 IMappingEngine，并正确添加我的 Profiles？谢谢！问候mtrax。

- emcoding

Answer 1

问题已解决！ :-)

我注册了我的个人资料，但在初始化MvcControllerFactory之后才这样做。我希望我的伪代码示例能帮助您避免这样的错误。

// SimpleInjector
var container = new Container();

// AutoMapper registration
container.Register<ITypeMapFactory, TypeMapFactory>();
container.RegisterCollection(MapperRegistry.Mappers);
container.RegisterSingleton<ConfigurationStore>();
container.Register<IConfiguration>(container.GetInstance<ConfigurationStore>);
container.Register<IConfigurationProvider>(container.GetInstance<ConfigurationStore>);
container.RegisterSingleton(() => Mapper.Engine);

// AutoMapper Profiles registration
container.RegisterCollection<Profile>(new MappingAProfile(), 
                                      new MappingBProfile(), 
                                      new MappingCProfile());

// Adding AutoMapper profiles
Mapper.Initialize(x =>
    {
        var profiles = container.GetAllInstances<Profile>();

        foreach (var profile in profiles)
        {
            x.AddProfile(profile);
        }
    });

Mapper.AssertConfigurationIsValid();

container.Verify();

container.RegisterAsMvcControllerFactory();

将*RegisterAsMvcControllerFactory()注册到此处查找：Simple Injector MVC Integration Guide。

- emcoding