标签: structuremap4

我正在使用AspNet Core 1.0 RTM的结构图.它们似乎已使用属性上的FromServices属性删除.这打破了下面的代码,因为我现在无法注入ClaimsPrincipal.我不知道如何让DI系统获得这个属性.我是否需要创建自定义InputFormatter或其他内容.重新开始工作似乎需要付出很多努力.

Startup.cs

public class Startup {
    public IServiceProvider ConfigureServices(IServiceCollection services) {
        var container = new Container();
        container.Configure(i => {

            i.For<IHttpContextAccessor>()
                .Use(new HttpContextAccessor());

            i.For<ClaimsPrincipal>()
                .Use(x => x.GetInstance<IHttpContextAccessor>().HttpContext.User);
        });

        container.Populate(services);

        return container.GetInstance<IServiceProvider>();
    }
}

Model.cs

public class Model {
    //[FromServices] <-- worked in RC1
    public ClaimsPrincipal Principal { get; set; }

    public string Value => Principal.Identity.Name; 
}

TestController.cs

public class TestController : Controller {

    public IActionResult Test(Model model){
        return Ok();
    }
}

好的，我收到堆栈错误。它被捕获的文件在这里

using System.Web;
using NHibernate;
using Nichols.Web.App_Start;

namespace Nichols.Web.DependencyResolution
{
    public class StructureMapScopeModule : IHttpModule
    {
        public void Dispose()
        {
            StructuremapMvc.StructureMapDependencyScope.Dispose();
        }

        public void Init(HttpApplication context)
        {
            context.BeginRequest += (sender, e) =>
                {
                    InitializeNestedContainerForRequest();

                    var session = GetCurrentSession();
                    session.BeginTransaction();
                };

            context.EndRequest += (sender, e) =>
                {
                    var session = GetCurrentSession();

                    if (context.Context.Error == null
                        && IsOk(context.Response.StatusCode))
                    {
                        session.Transaction.Commit();
                    }
                    else
                    {
                        session.Transaction.Rollback();
                    }

                    DisposeNestedContainerForRequest();
                };
        }

        private ISession GetCurrentSession()
        {
            var container = StructuremapMvc.StructureMapDependencyScope.CurrentNestedContainer;
            return container.GetInstance<ISession>();
        }

        private void InitializeNestedContainerForRequest() …

我正在使用 StructureMap 来解决依赖关系，这在旧版本中运行良好。但是在更新 StructureMap 版本 4.2.0.40 后，我遇到了这个错误。

ObjectFactory 现在在新版本中已过时。 那么如何修改以下逻辑以适应更新版本。

protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
        {
            try
            {
                if ((requestContext == null) || (controllerType == null))
                    return null;

                return (Controller)ObjectFactory.GetInstance(controllerType);
            }
            catch (StructureMapException)
            {
                System.Diagnostics.Debug.WriteLine(ObjectFactory.WhatDoIHave());
                throw new Exception(ObjectFactory.WhatDoIHave());
            }
        }

引导程序

public static class Bootstrapper
    {
        public static void Run()
        {
            ControllerBuilder.Current
                .SetControllerFactory(new StructureMapControllerFactory());

            ObjectFactory.Initialize(x =>
            {
                x.AddConfigurationFromXmlFile(@"D:\Samples\Web_API\OneCode\StructureMap.Web\StructureMap.Web\StructureMap.xml");
            });
        }
    }
}