ASP.NET Automapper 使用外部配置类

Question

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

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 如下所示：

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();

        }

我必须在 Save() 方法中调用 AutoMapperConfiguration.configure() 吗？ 还是有类似 DI 魔法的东西？ 请帮忙。

Answer 1

Mapper.CreateMap()
Mapper.Map()

这些方法使用静态（全局）Automapper 实例。因此，每个应用程序生命周期调用一次 CreateMap 就足够了。

仅供参考：您可以创建额外的映射器实例并控制它们的生命周期。阅读文档：Static and Instance API。