Question

我的AutoFac实现似乎没有将我的接口的任何具体实例注入我的API控制器。

检查Container对象时，它确实知道UserRepo - 它对它没有任何作用。

使用最新版本的AutoFac（Nuget）和AutoFac / WebAPI以及Autofc / MVC5。

QPainter::setWindow

 public class ContainerConfig
    {
        public static void RegisterContainer()
        {
            var builder = new ContainerBuilder();

            builder.RegisterApiControllers();

            //var asm = typeof(IUserRepository).Assembly;
            builder.RegisterAssemblyTypes(typeof(UserRepository).Assembly)
                .Where(x => x.Name.EndsWith("Repository")).AsImplementedInterfaces();

            var container = builder.Build();
            GlobalConfiguration.Configuration.DependencyResolver= new AutofacWebApiDependencyResolver(container);
            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
        }
    }

public class UsersController : ApiController
{
    IUserRepository _db;

    public UsersController(IUserRepository db)
    {
        _db = db;
    }
}

公共类UserRepository：IUserRepository { DbContext db = null;

public class WebApiApplication : System.Web.HttpApplication
{
    protected void Application_Start()
    {
        AreaRegistration.RegisterAllAreas();
        GlobalConfiguration.Configure(WebApiConfig.Register);
        FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
        RouteConfig.RegisterRoutes(RouteTable.Routes);
        Database.SetInitializer<FindABriefContext>(new DbInit());
        ContainerConfig.RegisterContainer();
    }
}

Answer 1

我认为为Web API实现依赖注入的方式与MVC不同。您应该使用AutofacWebApiDependencyResolver而不是使用AutofacDependencyResolver。

 var config = GlobalConfiguration.Configuration;
 config.DependencyResolver = new AutofacWebApiDependencyResolver(container);

AutoFac无法解析WebAPI

1 个答案: