我真的坚持尝试让我工作的c#项目的团结工作。.Net Unity对象实例问题
它在我的统一控制器工厂类中抛出“未设置为对象实例的对象引用”错误。
UnityControllerFactory.cs文件:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using Microsoft.Practices.Unity;
using Microsoft.Practices.Unity.Configuration;
namespace Sportrax.Presentation.Admin
{
public class UnityControllerFactory : DefaultControllerFactory
{
IUnityContainer _container;
public UnityControllerFactory(IUnityContainer container)
{
_container = container;
}
protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
{
return (IController)_container.Resolve(controllerType);
}
}
}
我的Global.asax.cs文件是:
protected void Application_Start()
{
IUnityContainer container = new UnityContainer();
UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");
section.Containers.Default.Configure(container);
UnityControllerFactory factory = new UnityControllerFactory(container);
ControllerBuilder.Current.SetControllerFactory(factory);
AreaRegistration.RegisterAllAreas();
RegisterRoutes(RouteTable.Routes);
}
而且我的web.config是:
<configuration>
<configSections>
<section name ="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration" />
</configSections>
<unity>
<containers>
<container>
<types>
<type type="Sportrax.Business.Interfaces.IVenueService, Sportrax.Business" mapTo="Sportrax.Business.VenueService, Sportrax.Business" />
<type type="Sportrax.DAL.Interfaces.IVenueRepository, Sportrax.DAL" mapTo="Sportrax.DAL.Repositories.VenueRepository, Sportrax.DAL" />
</types>
</container>
</containers>
</unity>
......
我已经加入项目参考Microsoft.Practices.unity和 Microsoft.Practices.Unity.Configuration,版本1.1 .0.0。根据这些文献性质
我运行时版本说V2.0.50727
难道这是问题?当我添加引用时,我确实有两个版本可用。
添加错误的详细信息在这里(我不能附上图片!):
System.NullReferenceException was unhandled by user code
Message=Object reference not set to an instance of an object.
Source=Microsoft.Practices.Unity
StackTrace:
at Microsoft.Practices.Unity.ResolutionFailedException.CreateMessage(Type typeRequested, String nameRequested, Exception innerException) in e:\Builds\Unity\UnityTemp\Compile\Unity\Src\Unity\ResolutionFailedException.cs:line 99
at Microsoft.Practices.Unity.ResolutionFailedException..ctor(Type typeRequested, String nameRequested, Exception innerException) in e:\Builds\Unity\UnityTemp\Compile\Unity\Src\Unity\ResolutionFailedException.cs:line 43
at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name) in e:\Builds\Unity\UnityTemp\Compile\Unity\Src\Unity\UnityContainer.cs:line 467
at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, String name) in e:\Builds\Unity\UnityTemp\Compile\Unity\Src\Unity\UnityContainer.cs:line 450
at Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name) in e:\Builds\Unity\UnityTemp\Compile\Unity\Src\Unity\UnityContainer.cs:line 149
at Microsoft.Practices.Unity.UnityContainerBase.Resolve(Type t) in e:\Builds\Unity\UnityTemp\Compile\Unity\Src\Unity\UnityContainerBase.cs:line 416
at Sportrax.Presentation.Admin.UnityControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) in C:\Users\Thomas\Documents\College\MSc Web Technologies\Project .Net\Sportrax\Sportrax.Solution\Sportrax.Presentation.Admin\UnityControllerFactory.cs:line 23
at System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName)
at System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory)
at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state)
at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state)
at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
InnerException:
它发生在行:
回报(一个IController)_container.Resolve(controllerType);
在UnityControllerFactory.cs
这个东西已经变得不可能遵循了,SO不是一个论坛,答案会在页面上向上或向下移动,所以说“看到页面结尾”不起作用。如果你仍然没有得到答案,你能编辑你的原始问题以包括你的现状吗? – 2010-12-09 21:31:45
同意的克里斯,它到处都是......抱歉,只有新来的,并不是100%确定如何发布工作,认为我现在会关闭问题把我的东西存入存储库,并在别人的结帐副本上统一测试。由于项目不久就要交付,不能再浪费时间来解决这个问题了。如果我有时间查看并在稍后的日期修复,我会更新答案。 – 2010-12-12 03:45:18