Asp .net core中使用AutoMapper数据映射

1. 安装nuget包

2. 注册服务

   services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
   

3. 创建映射配置文件

4. 配置类如下

   public class TouristRouteProfile : Profile
       {
           public TouristRouteProfile()
           {
               CreateMap<TouristRoute, TouristRouteDto>()
                   .ForMember(
                       dest => dest.Price,
                       opt => opt.MapFrom(src => src.OriginalPrice * (decimal)    (src.DiscountPresent ?? 1)))
                   .ForMember(
                       dest => dest.TravelDays,
                       opt => opt.MapFrom(src => src.TravelDays))
                   .ForMember(
                       dest => dest.TripType,
                       opt => opt.MapFrom(src => src.TripType))
                   .ForMember(
                       dest => dest.DepartureCity,
                       opt => opt.MapFrom(src => src.DepartureCity));
   
               CreateMap<TouristRouteForCreationDto, TouristRoute>()
                   .ForMember(
                       dest => dest.Id,
                       opt => opt.MapFrom(src => Guid.NewGuid()));
   
               CreateMap<TouristRouteForUpdateDto, TouristRoute>();
   
               CreateMap<TouristRoute, TouristRouteForUpdateDto>();
           }
       }
   

5. 注入依赖

   private readonly IMapper _mapper;
   

6. 使用mapper映射