必须先设置AutofacServiceHost.Container静态属性,然后才能实例化服务

Question

在我的XXXX.WS WCF服务项目中,我正在尝试使用autofac进行DI/IOC ...整天都在使用它但是我认为我很接近(这里有不同的错误)...这个错误我可以'知道如何动摇......"必须设置AutofacServieHost.Container静态属性......"但我想我正在设置它!？!我究竟做错了什么？

  protected void Application_Start(object sender, EventArgs e)
    {
        var builder = new ContainerBuilder();

        builder.Register(c => new DatabaseFactory()).As<IDatabaseFactory>().Named<DatabaseFactory>("DBFactory");
        builder.Register(c => new ListingSqlRepository(c.ResolveNamed<DatabaseFactory>("DBFactory"))).As<IListingSqlRepository>().Named<ListingSqlRepository>("LSR");
        builder.Register(c => new ListingRepository(c.ResolveNamed<ListingSqlRepository>("LSR"))).As<IListingRepository>().Named<ListingRepository>("LR");
        builder.Register(c => new Service1(c.ResolveNamed<IListingRepository>("LR"))).As<IService1>();

        using (var container = builder.Build())
        {
            Uri address = new Uri("http://localhost:57924/Service1");
            ServiceHost host = new ServiceHost(typeof(Service1), address);

            host.AddServiceEndpoint(typeof(IService1), new BasicHttpBinding(), string.Empty);

            host.AddDependencyInjectionBehavior<IService1>(container);

            //BREAKS HERE?
            host.Description.Behaviors.Add(new ServiceMetadataBehavior { HttpGetEnabled = true, HttpGetUrl = address });
            host.Open();

            Console.WriteLine("The host has been opened.");
            Console.ReadLine();

            host.Close();
            Environment.Exit(0);
        }

    }

然后是SERVICE:namespace LOTW2012.WS {

public class Service1 : IService1
{
    private IListingRepository _listingRepository { get; set; }

    public Service1(IListingRepository iLR) {
        this._listingRepository = iLR;
    }

    public Service1()
    {
    }


    public List<Listing> GetListingsByStateName(string stateName)
    {   
        //todo ..getall for now
        var listings = _listingRepository.GetAll().ToList();

        return listings;
    }

Answer 1

您需要通过设置有问题的属性来告诉Autofac WCF有关您构建的容器的集成:

var builder = new ContainerBuilder();

// ...

AutofacHostFactory.Container = builder.Build();

// ...

这将允许Autofac解析服务类型.