Fluentvalidation将业务对象注入验证器

Question

我正在使用fluentvalidation并使用structuremap为asp.net mvc3中的操作注入验证器。我在将业务对象注入验证器对象时遇到问题。我得到这样一个错误：

｛"StructureMap异常代码：202\n没有为PluginFamily Suggestion.Biz.BO.ISubjectBO，Suggestion.Biz，Version=1.0.0.0，Culture=neutral，PublicKeyToken=null定义默认实例"｝

如何将SubjectBO注入SubjectValidator？

主题验证器：

public class SubjectValidator : AbstractValidator<SUBJECT>
{
    private ISubjectBO _subjectBO;
    public SubjectValidator(ISubjectBO subjectBO)
    {
        _subjectBO = subjectBO;
        Custom(x=>{
            if(!_subjectBO.CanUpdate(x))
            return new ValidationFailure(null, "error msg");
            return null;
        });
    }
}

建议验证注册表：

public class SuggestionValidationRegistry : Registry
{
    public SuggestionValidationRegistry()
    {
        For<IValidator<SUBJECT>>().Singleton().Use<SubjectValidator>();
        ValidatorOptions.ResourceProviderType = typeof(ValidationResources);
    }
}

StructureMap ValidatorFactory：

public class StructureMapValidatorFactory : ValidatorFactoryBase
{
    public override IValidator CreateInstance(Type validatorType)
    {
        return ObjectFactory.TryGetInstance(validatorType) as IValidator;
    }
}

应用程序启动：

        ObjectFactory.Configure(cfg => cfg.AddRegistry(new SuggestionValidationRegistry()));
        FluentValidationModelValidatorProvider.Configure(provider => provider.ValidatorFactory = new StructureMapValidatorFactory());
        DataAnnotationsModelValidatorProvider.AddImplicitRequiredAttributeForValueTypes = false;

是，我在app_start配置建议BizRegistry:

public class BizRegistry : Registry
{
    public BizRegistry()
    {
        For<IAwardTypeBO>().Use<AwardTypeBO>();
        For<IQuoteBO>().Use<QuoteBO>();
        For<ISubjectBO>().Use<SubjectBO>();
        For<IContestBO>().Use<ContestBO>();
        For<IApplicationBO>().Use<ApplicationBO>();
        For<IScreenBO>().Use<ScreenBO>();
    }
}

应用程序启动：

protected void Application_Start()
    {
        ConfigureStructureMap();
        AreaRegistration.RegisterAllAreas();
        RegisterGlobalFilters(GlobalFilters.Filters);
        RegisterRoutes(RouteTable.Routes);
        EFUnitOfWorkFactory.SetObjectContext(() => new SuggestionModel());

        UnitOfWork.UnitOfWorkFactory = new EFUnitOfWorkFactory();

    }
    private static void ConfigureStructureMap()
    {
        IContainer container = new Container(x =>
        {
            x.For<IControllerActivator>().Use<StructureMapControllerActivator>();
            x.AddRegistry(new BizRegistry());                
        });
        DependencyResolver.SetResolver(new StructureMapDependencyResolver(container));
        ObjectFactory.Configure(cfg => cfg.AddRegistry(new SuggestionValidationRegistry()));
        FluentValidationModelValidatorProvider.Configure(provider => provider.ValidatorFactory = new StructureMapValidatorFactory(container));
        DataAnnotationsModelValidatorProvider.AddImplicitRequiredAttributeForValueTypes = false;
    }

Answer 1

在配置SubjectValidator注入时，您尚未配置构造函数参数ISubjectBO subjectBO

Answer 2

您可以按照本线程中的说明编写一个自定义验证器工厂。