Question

我想通过Automapper将mimeMessage_MailBox更改为email_MailBox实体，配置代码如下所示。

public static class AutoMapperConfiguration
{

    public static void configure() {
        Mapper.CreateMap<mimeMessage_MailBox, email_MailBox>()
            .ForMember(dest => dest.SenderName, opt => opt.MapFrom(src => src.From.Mailboxes.ToString()))
            .ForMember(dest => dest.EmailSubject, opt => opt.MapFrom(src => src.Subject))
            .ForMember(dest => dest.EmailCC, opt => opt.MapFrom(src => string.Join(",",src.Cc.Mailboxes.ToString())))
            .ForMember(dest => dest.ReceiverEmail, opt => opt.MapFrom(src=>string.Join(",", src.To.Mailboxes.ToString())))
            .ForMember(dest => dest.EmailBody, opt => opt.MapFrom(src=>src.Body.ContentBase.OriginalString));

    }

现在将数据保存到DbContext为

public void Save(mimeMessage_MailBox mail)
    {
        email_MailBox mailbox = new email_MailBox();
         using (EmailEntityModelContext context = new EmailEntityModelContext())
        {
            context.email_MailBox.Add(Mapper.Map<mimeMessage_MailBox, email_MailBox>(mail, mailbox));
            context.SaveChanges();

        }

我是否必须在Save（）方法中调用AutoMapperConfiguration.configure（）？还是有像DI魔术的东西？请帮忙。

Answer 1

Mapper.CreateMap()
Mapper.Map()

这些方法使用静态（全局）Automapper实例。因此，在每个应用程序生命周期内调用CreateMap就足够了。

仅供参考：您可以创建其他映射器实例并控制其生命周期。阅读文档：Static and Instance API。

ASP.NET Automapper使用外部配置类

1 个答案: