asp.net-mvc-2 – ASP.NET MVC2 Ninject NLog(shared hosting?)
发布时间:2020-12-15 23:45:54 所属栏目:asp.Net 来源:网络整理
导读:我有一个基于 Tekpub Starter Site的MVC2应用程序,所以它使用Ninject进行依赖注入,NLog用于日志记录,还有一些其他库在各个地方.据我所知,这正是我的问题. 一切都在使用ASP.NET开发服务器(Cassini)的PC上精美地工作,但是当我部署到服务器(这是一个便宜的共享
我有一个基于
Tekpub Starter Site的MVC2应用程序,所以它使用Ninject进行依赖注入,NLog用于日志记录,还有一些其他库在各个地方.据我所知,这正是我的问题.
一切都在使用ASP.NET开发服务器(Cassini)的PC上精美地工作,但是当我部署到服务器(这是一个便宜的共享主机协议))时,我得到一个NullReferenceException,它似乎与实例化记录器的Ninject有关. 这是我的Global.asax.cs的相关位 protected override void OnApplicationStarted() { Logger.Info("App is starting"); // <-- I think this is what's causing the problem RegisterRoutes(RouteTable.Routes); //MvcContrib.Routing.RouteDebugger.RewriteRoutesForTesting(RouteTable.Routes); RegisterAllControllersIn(Assembly.GetExecutingAssembly()); SetEngines(); } protected override IKernel CreateKernel() { return Container; } internal class SiteModule : NinjectModule { public override void Load() { Bind<ILogger>().To<NLogLogger>(); // and a couple of others... } } protected void Application_End() { Logger.Info("App is shutting down"); } protected void Application_Error() { Exception lastException = Server.GetLastError(); Logger.Fatal(lastException); } public ILogger Logger { get { return Container.Get<ILogger>(); } } static IKernel _container; public static IKernel Container { get { if (_container == null) { _container = new StandardKernel(new SiteModule()); } return _container; } } nlog.config <?xml version="1.0" encoding="utf-8" ?> <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > <targets> <!--Useful for debugging--> <target name="console" xsi:type="ColoredConsole" layout="${date:format=HH:mm:ss}|${level}|${stacktrace}|${message}" /> <target name="file" xsi:type="File" fileName="${basedir}/App_Data/Site.log" layout="${date}: ${message}" /> <target name="eventlog" xsi:type="EventLog" source="My App" log="Application" layout="${date}: ${message} ${stacktrace}" /> </targets> <rules> <logger name="*" minlevel="Info" writeTo="file" /> <!-- <logger name="*" minlevel="Fatal" writeTo="eventlog" /> --> </rules> </nlog> NLogLogger类: public class NLogLogger:ILogger { private Logger _logger; public NLogLogger() { _logger = LogManager.GetCurrentClassLogger(); } public void Info(string message) { _logger.Info(message); } // similar for Warn,Debug,etc 堆栈跟踪: [NullReferenceException: Object reference not set to an instance of an object.] NLog.LogManager.GetCurrentClassLogger() +84 DynamicInjector8cdfc2eb02f8497596a4704e379a4bb4(Object[] ) +40 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +319 Ninject.Activation.Context.Resolve() +182 Ninject.KernelBase.<Resolve>b__4(IContext context) +8 System.Linq.<>c__DisplayClass12`3.<CombineSelectors>b__11(TSource x) +32 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +151 System.Linq.<CastIterator>d__b1`1.MoveNext() +92 System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +4187840 Ninject.ResolutionExtensions.Get(IResolutionRoot root,IParameter[] parameters) +149 Web.Application.get_Logger() in C:mvcstarterWebGlobal.asax.cs:159 Web.Application.OnApplicationStarted() in C:mvcstarterWebGlobal.asax.cs:80 Ninject.Web.Mvc.NinjectHttpApplication.Application_Start() +535 [HttpException (0x80004005): Object reference not set to an instance of an object.] System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context,HttpApplication app) +9024793 System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext,HttpContext context,MethodInfo[] handlers) +131 System.Web.HttpApplication.InitSpecial(HttpApplicationState state,MethodInfo[] handlers,IntPtr appContext,HttpContext context) +194 System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext,HttpContext context) +339 System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +253 [HttpException (0x80004005): Object reference not set to an instance of an object.] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8946484 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr,HttpContext context) +256 如果我注释了OnApplicationStarted的日志记录,我会得到一个不同的异常.我不知道为什么会发生这种情况,因为不应该发生任何日志记录,所以我不知道为什么尝试实例化记录器. [NullReferenceException: Object reference not set to an instance of an object.] NLog.LogManager.GetCurrentClassLogger() +84 DynamicInjector5ca7d21cf56b4732957e22cb1bfd8bdd(Object[] ) +40 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +319 Ninject.Activation.Context.Resolve() +182 Ninject.KernelBase.<Resolve>b__4(IContext context) +8 System.Linq.<>c__DisplayClass12`3.<CombineSelectors>b__11(TSource x) +32 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +151 System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +4187840 Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent) +347 Ninject.Activation.Providers.StandardProvider.GetValue(IContext context,ITarget target) +138 Ninject.Activation.Providers.<>c__DisplayClass2.<Create>b__1(ITarget target) +17 System.Linq.WhereSelectArrayIterator`2.MoveNext() +85 System.Linq.Buffer`1..ctor(IEnumerable`1 source) +325 System.Linq.Enumerable.ToArray(IEnumerable`1 source) +78 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +306 Ninject.Activation.Context.Resolve() +182 Ninject.KernelBase.<Resolve>b__4(IContext context) +8 System.Linq.<>c__DisplayClass12`3.<CombineSelectors>b__11(TSource x) +32 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +151 System.Linq.<CastIterator>d__b1`1.MoveNext() +92 System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +4187840 Ninject.ResolutionExtensions.TryGet(IResolutionRoot root,String name,IParameter[] parameters) +261 Ninject.Web.Mvc.NinjectControllerFactory.CreateController(RequestContext requestContext,String controllerName) +108 System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext,IController& controller,IControllerFactory& factory) +124 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext,AsyncCallback callback,Object state) +50 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext,Object state) +48 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context,AsyncCallback cb,Object extraData) +16 System.Web.Mvc.<>c__DisplayClass7.<BeginProcessRequest>b__6() +29 System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Func`1 func) +38 System.Web.Mvc.ServerExecuteHttpHandlerAsyncWrapper.BeginProcessRequest(HttpContext context,Object extraData) +97 System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler,TextWriter writer,Boolean preserveForm,Boolean setPreviousPage,VirtualPath path,VirtualPath filePath,String physPath,Exception error,String queryStringOverride) +1508 System.Web.HttpServerUtility.Execute(IHttpHandler handler,Boolean setPreviousPage) +77 System.Web.HttpServerUtility.Execute(IHttpHandler handler,Boolean preserveForm) +28 System.Web.HttpServerUtilityWrapper.Execute(IHttpHandler handler,Boolean preserveForm) +22 System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper,String actionName,String controllerName,RouteValueDictionary routeValues,TextWriter textWriter) +372 System.Web.Mvc.Html.ChildActionExtensions.RenderAction(HtmlHelper htmlHelper,String controllerName) +35 ASP.views_home_index_aspx.__RenderContent2(HtmlTextWriter __w,Control parameterContainer) in c:HostingSpaces&;snip>wwwrootViewsHomeIndex.aspx:8 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer,ICollection children) +109 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +8 System.Web.UI.Control.Render(HtmlTextWriter writer) +10 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer,ControlAdapter adapter) +27 System.Web.UI.Control.RenderControl(HtmlTextWriter writer,ControlAdapter adapter) +100 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25 ASP.views_shared_site_master.__Render__control1(HtmlTextWriter __w,Control parameterContainer) in c:HostingSpaces&;snip>wwwrootViewsSharedSite.Master:48 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer,ControlAdapter adapter) +100 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer,ICollection children) +208 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +8 System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer) +55 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer,ControlAdapter adapter) +100 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint,Boolean includeStagesAfterAsyncPoint) +3060 我唯一可以让网站工作的方法是完全伪造记录器,我完全不开心.这是我第一次使用ASP.NET共享托管,所以我有点失落.任何人都有任何有用的建议? 解决方法
您可以避免使用LogManager.GetCurrentClassLogger()并让Ninject为您解决当前的类名:
将NLogLogger类的构造函数更改为: public NLogLogger(string currentClassName) { _logger = LogManager.GetLogger(currentClassName); } 并更改ninject绑定以解析当前的类名称: Bind<ILogger>().To<NLogLogger>() .WithConstructorArgument("currentClassName",x => x.Request.ParentContext.Request.Service.FullName); 额外的好处:您的日志文件现在还包括发出日志指令的类名. 我知道我的答案有点晚了,但我今天很自豪,在任何地方找不到答案.也许这有助于别人. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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