可在每层这样写一个类，整合每个实体类的映射

public  class AutoMapperHelper    {       public static void Register()       {           Mapper.Initialize(x => x.AddProfile
     
      ());       }         }   public class ModelProfile : Profile   {       public override string ProfileName       {           get           {               return GetType().Name;           }       }       protected override void Configure()       {                      CreateMap
      
       ()              .ForMember(d => d.CategoryID, opt => opt.MapFrom(s => s.CategoryL2ID));       }   }
      
     

　　

然后在使用中先调用一下，注册映射关系类

AutoMapperHelper.Register();