Question

我有6个课程，我想用AutoMapper

进行mapp

 public class Alert
        {
                public string MessageSender { get; set; }
                public Site Site { get; set; }
                public IEnumerable<Recipient> Recipients { get; set; }
        }

public class AlertModel
    {
        public string Sender { get; set; }
        public SiteModel Site { get; set; }
        public IEnumerable<RecipientModel> Recipients { get; set; }
}


public class Site
    {
        public int Id { get; set; }
    }

public class SiteModel
    {
        public int Id { get; set; }
    }

public class Recipient
    {
        public int Id { get; set; }
        public string CallId { get; set; }
    }

public class RecipientModel
    {
        public int Id { get; set; }
        public string CallId { get; set; }
    }


    private static void ConfigureAlertMapping()
    {
        AutoMapper.Mapper.Initialize(cfg =>
            cfg.CreateMap<Alert, AlertModel>()
                .ForMember(dest => dest.Sender, opt => opt.MapFrom(src => src.MessageSender))
        );
    }

    private static void ConfigureRecipientMapping()
    {
        AutoMapper.Mapper.Initialize(cfg => cfg.CreateMap<Recipient, RecipientModel>());
    }

    private static void ConfigureSiteMapping()
    {
        AutoMapper.Mapper.Initialize(cfg => cfg.CreateMap<Site, SiteModel>());
    }

这是我要映射的对象。

Alert alert = new Alert()
        {
            Site = new Site() { Id = 1 },
            Recipients = new List<Recipient> { new Recipient() { CallId = "1001" } }
        };

我想打电话给这个，但抛出异常...... :(

AlertModel alertOutputInfo = AutoMapper.Mapper.Map<Alert, AlertModel>(alert);

这是错误：

>>Mapping types:
Alert -> AlertModel
UniteAlerter.Domain.Models.Alert -> UniteAlerter.Gateway.Models.AlertModel
   at lambda_method(Closure , Alert , AlertModel , ResolutionContext )
   at AutoMapper.Mapper.AutoMapper.IMapper.Map[TSource,TDestination](TSource source)
   at AutoMapper.Mapper.Map[TSource,TDestination](TSource source)
   at UniteAlerter.Gateway.AlertGateway.<SendAlert>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()

如果您找到其他解决方案，请在此处添加。

Answer 1

更新（解决方案）

我发现了问题...我为每个想要映射的类初始化mapper，但解决方案是使用所有映射初始化mapper一次。

AutoMapper.Mapper.Initialize(
cfg =>
     {
        cfg.CreateMap<Alert, AlertModel>().ForMember(dest => dest.Sender, opt => opt.MapFrom(src => src.MessageSender));
        cfg.CreateMap<Recipient, RecipientModel>();
        cfg.CreateMap<Site, SiteModel>();
      }
);

如何使用4个不同的属性类映射2个对象？

1 个答案: