core6.0 atutomap用法介紹介紹

core6.0atutomap用法AutoMapper

是一個(gè)對(duì)象到對(duì)象的映射器，通常用于將一個(gè)對(duì)象的屬性映射到另一個(gè)對(duì)象的屬性。這在數(shù)據(jù)轉(zhuǎn)換、DTO（數(shù)據(jù)傳輸對(duì)象）創(chuàng)建等場(chǎng)景中非常有用。在.NET6.0中，使用AutoMapper的基本步驟如下：安裝AutoMapper首先，你需要通過NuGet安裝AutoMapper包。bash復(fù)制代碼dotnetaddpackageAutoMapper定義你的模型假設(shè)你有兩個(gè)模型，SourceModel

和

DestinationModel。csharp復(fù)制代碼publicclassSourceModel{publicstringName{get;set;}publicintAge{get;set;}}publicclassDestinationModel{publicstringFullName{get;set;}publicintYears{get;set;}}創(chuàng)建映射配置在Startup.cs或任何初始化代碼中，你需要定義如何從SourceModel映射到DestinationModel。csharp復(fù)制代碼varconfiguration=newMapperConfiguration(cfg=>{cfg.CreateMap<SourceModel,DestinationModel>().ForMember(dest=>dest.FullName,opt=>opt.MapFrom(src=>src.Name+"SomeSuffix")).ForMember(dest=>dest.Years,opt=>opt.MapFrom(src=>src.Age));});varmapper=configuration.CreateMapper();使用映射一旦你有了映射器，你就可以很容易地將一個(gè)對(duì)象映射到另一個(gè)對(duì)象。csharp復(fù)制代碼varsource=newSourceModel{Name="John",Age=30};vardestination=Mapper.Map<DestinationModel>(source);現(xiàn)在，destination對(duì)象會(huì)有FullName為"JohnSomeSuffix"和Years為30。配置Profile對(duì)于更復(fù)雜的映射，你可能希望使用Profile。這允許你將映射配置分離到單獨(dú)的類中。csharp復(fù)制代碼publicclassMyMappingProfile:Profile{publicMyMappingProfile(){CreateMap<SourceModel,DestinationModel>().ForMember(dest=>dest.FullName,opt=>opt.MapFrom(src=>src.Name+"SomeSuffix")).ForMember(dest=>dest.Years,opt=>opt.MapFrom(src=>src.Age));}}然后，在創(chuàng)建映射配置時(shí)，你可以使用此Profile：csharp復(fù)制代碼varconfiguration=newMapperConfiguration(cfg=>{cfg.AddProfile<MyMappingProfile>();});依賴注入在ASP.NETCore項(xiàng)目中，你可以很容易地將AutoMapper集成到依賴注入容器中。這樣，你就可以在控制器或其他服務(wù)中注入IMapper，并使用它來執(zhí)行映射。csharp復(fù)制代碼publicvoidConfigureServices(IServiceCollectionservices){services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());//...}然后，在你的控制器或服務(wù)中：csharp復(fù)制代碼publicclassMyController:ControllerBase{privatereadonlyIMapper_mapper;publicMyController(IMappermapper){_mapper=mapper;}publicIActionResultSomeAction(){varsource=newSourceModel{Name="John",Age=30};vardestin