NET 6 Web 应用程序中缺少类型映射配置或映射不受支持

Question

我在这一行有这个错误Missing type map configuration or unsupported mapping.

var marketingEventEntity = _mapper.Map<MarketingEvent?>(request);

但我已经在我的 AutoMapperProfile 中配置了它。这是 class

public class AutoMapperProfile : Profile
{
    public AutoMapperProfile()
    {
        CreateMap<CreateMarketingEventRequest, MarketingEvent?>();
    }
}

下面是完整的代码。我正在使用 Mediatr 和 CQRS 模式。

    [HttpPost]
    public async Task<ActionResult> Create([FromBody] CreateMarketingEventRequest request)
    {
        try
        {
            var query = new CreateCommand(request);
            var result = await _mediator.Send(query);
            return CreatedAtAction(null, new { id = result }, result);
        }
        catch (Exception ex)
        {
            return Problem(ex.Message);
        }
    }

public class CreateCommand : IRequest<MarketingEvent>
{
    public CreateMarketingEventRequest createMarketingEventRequest { get; set; }

    public CreateCommand(CreateMarketingEventRequest createMarketingEventRequest)
    {
        this.createMarketingEventRequest = createMarketingEventRequest;
    }
}

public class CreateHandler : IRequestHandler<CreateCommand, MarketingEvent?>
{
    private readonly IMarketingEventService _marketingEventService;
    private readonly IMapper _mapper;

    public CreateHandler(IMarketingEventService marketingEventService, IMapper mapper)
    {
        _marketingEventService = marketingEventService;
        _mapper = mapper;
    }

    public async Task<MarketingEvent?> Handle(CreateCommand request, CancellationToken cancellationToken)
    {
        var marketingEventEntity = _mapper.Map<MarketingEvent?>(request);
        if(marketingEventEntity == null) return null;
        return await _marketingEventService.Create(marketingEventEntity);
    }
}

Answer 1

应该这样：

var marketingEventEntity = _mapper.Map<MarketingEvent?>(request);

是：

var marketingEventEntity = _mapper.Map<MarketingEvent?>(request.CreateMarketingEventRequest);

NET 6 Web 应用程序中缺少类型映射配置或映射不受支持

Missing type map configuration or unsupported mapping in NET 6 web app

c#

automapper