我们一直在使用 C# 在我们的 ASP.Net MvC 3 Web 应用程序中使用 StructureMap 进行依赖注入,但是今天我无法将所需的类型注入到我构建的 C# CustomResolver 中。
这是我们的 StructureMapInitialization.cs 文件中的代码:
namespace UI.DependencyResolution
{
/// <summary>
/// Class Structure Map IOC intialization
/// </summary>
public static class StructureMapIocInitialization
{
/// <summary>
/// Initialize Method for Structure Map IOC Initialization
/// </summary>
/// <returns>an IContainer for Services and Repository</returns>
public static IContainer Initialize()
{
ObjectFactory.Initialize(cfg =>
{
cfg.Scan(scan =>
{
scan.Assembly("Infrastructure");
scan.Assembly("Core");
scan.WithDefaultConventions();
scan.ConnectImplementationsToTypesClosing(typeof(IAlertGenerator<>));
scan.ConnectImplementationsToTypesClosing(typeof(IValidationRule<>));
});
cfg.For<IFilterProvider>().Use<StructureMapFilterProvider>();
cfg.For<IControllerActivator>().Use<StructureMapControllerActivator>();
cfg.SetAllProperties(c =>
{
c.WithAnyTypeFromNamespaceContainingType<ICustomerRepository>();
c.WithAnyTypeFromNamespaceContainingType<IMachineRepository>();
c.WithAnyTypeFromNamespaceContainingType<ICurrentUserService>();
c.WithAnyTypeFromNamespaceContainingType<ICircuitRegistrationRepository>();
c.WithAnyTypeFromNamespaceContainingType<IWorkflowRequestInformationRepository>();
c.WithAnyTypeFromNamespaceContainingType<IEnumerable<IAlertGenerator<Customer>>>();
});
});
return ObjectFactory.Container;
}
}
}
这是我们 AutoMapperProfile.cs 文件中的代码片段:
Mapper.CreateMap<AbstractOrganization, DashboardDetails>()
.ForMember(dashboard => dashboard.AlertsDictionary,
member => member.ResolveUsing<OrganizationAlertResolver>()
.ConstructedBy(() => new OrganizationAlertResolver(
ObjectFactory.GetInstance<ICustomerRepository>(), ObjectFactory.GetInstance<IEnumerable<IAlertGenerator<Customer>>>())));
这是我的 CustomResolver 代码:
namespace UI.Models.CustomResolvers
{
public class OrganizationAlertResolver : ValueResolver<Organization, Dictionary<string, string>>
{
private readonly ICustomerRepository _customerRepository;
/// <summary>
/// Storage for customer alert generator.
/// </summary>
private readonly IEnumerable<IAlertGenerator<Customer>> _customerAlertGenerators;
public OrganizationAlertResolver(ICustomerRepository customerRepository,
IEnumerable<IAlertGenerator<Customer>> customerAlertGenerators)
{
_customerRepository = customerRepository;
_customerAlertGenerators = customerAlertGenerators;
}
protected override Dictionary<string,string> ResolveCore(Organization organization)
{
var customers = _customerRepository.GetActiveCustomersByOrgNumber(organization.OrgNumber);
foreach (var generator in _customerAlertGenerators)
{
generator.PopulateAlerts(customers);
}
Dictionary<string, string> alertsDictionary = new Dictionary<string, string>();
foreach (var customer in customers)
{
foreach (var alert in customer.Alerts)
{
if(alertsDictionary.ContainsKey(alert.ToString()))
{
alertsDictionary[alert.ToString()] = alert.Message;
}
else
{
alertsDictionary.Add(alert.ToString(), alert.Message);
}
}
}
return alertsDictionary;
}
}
}
因此,我正在尝试使用 StructureMap 将 Customer 类型的 IAlertGenerator 的 IEnumerable 注入到我的 CustomResolver 中,但是我得到一个 StructureMap 202 异常,说没有找到该类型的默认实例,即使我在其中创建了它的实例StructureMap 初始化文件中的最后一个条目。
这是我运行它时收到的错误消息的副本:
StructureMap 异常代码:202 没有为 PluginFamily System.Collections.Generic.IEnumerable 定义默认实例
1[[Core.Domain.Alerts.IAlertGenerator
1[[Core.Domain.Model.Customer,Core,Version=1.0.0.0,Culture=neutral,PublicKeyToken=null]],Core,Version =1.0.0.0,文化=中性,PublicKeyToken=null]],mscorlib,版本=4.0.0.0,文化=中性,PublicKeyToken=b77a5c561934e089
任何人都可以提供有关如何解决此问题的建议吗?