如何修复Hangfire配置错误？

Question

似乎我需要为日志进行配置。我可以添加作业&在/hangfire页面中看到它们，但是如果禁用app.UseHangfireServer()，它们就不会启动。

因为它是一个简单的基于文件夹的网站，所以我已经从运行示例Hangfire项目将必要的dll复制到了bin文件夹中。如果需要，我如何配置记录器？

Error location:

Line 17:         {
Line 18:             app.UseHangfireServer();
Line 19:             app.UseHangfireDashboard();
Line 20: 

Source File: f:\hangfire\App_Code\Startup.cs    Line: 18 

堆栈跟踪：

[ConfigurationErrorsException: The configuration section for Logging cannot be found in the configuration source.]
   Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolderCustomFactory.ValidateLoggingSettings(LoggingSettings loggingSettings) +64
   Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolderCustomFactory.CreateObject(IBuilderContext context, String name, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) +49
   Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterCustomFactory.CreateObject(IBuilderContext context, String name, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) +66
   Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.ConfiguredObjectStrategy.BuildUp(IBuilderContext context, Type t, Object existing, String id) +83
   Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(IBuilderContext context, Type typeToBuild, Object existing, String idToBuild) +59
   Microsoft.Practices.ObjectBuilder.SingletonStrategy.BuildUp(IBuilderContext context, Type typeToBuild, Object existing, String idToBuild) +169
   Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(IBuilderContext context, Type typeToBuild, Object existing, String idToBuild) +59
   Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.ConfigurationNameMappingStrategy.BuildUp(IBuilderContext context, Type t, Object existing, String id) +102
   Microsoft.Practices.ObjectBuilder.BuilderBase`1.DoBuildUp(IReadWriteLocator locator, Type typeToBuild, String idToBuild, Object existing, PolicyList[] transientPolicies) +217
   Microsoft.Practices.ObjectBuilder.BuilderBase`1.BuildUp(IReadWriteLocator locator, Type typeToBuild, String idToBuild, Object existing, PolicyList[] transientPolicies) +127
   Microsoft.Practices.ObjectBuilder.BuilderBase`1.BuildUp(IReadWriteLocator locator, String idToBuild, Object existing, PolicyList[] transientPolicies) +87
   Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp(IReadWriteLocator locator, IConfigurationSource configurationSource) +135
   Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp(IConfigurationSource configurationSource) +53
   Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterFactory.Create() +29
   Microsoft.Practices.EnterpriseLibrary.Logging.Logger.get_Writer() +106
   lambda_method(Closure , String , TraceEventType ) +252
   Hangfire.Logging.LogProviders.EntLibLogger.Log(LogLevel logLevel, Func`1 messageFunc, Exception exception) +60
   Hangfire.Logging.LoggerExecutionWrapper.Log(LogLevel logLevel, Func`1 messageFunc, Exception exception) +87
   Hangfire.Logging.LogExtensions.IsInfoEnabled(ILog logger) +42
   Hangfire.Logging.LogExtensions.Info(ILog logger, String message) +27
   Hangfire.BackgroundJobServer..ctor(BackgroundJobServerOptions options, JobStorage storage, IEnumerable`1 additionalProcesses) +236
   Hangfire.AppBuilderExtensions.UseHangfireServer(IAppBuilder builder, JobStorage storage, BackgroundJobServerOptions options, IBackgroundProcess[] additionalProcesses) +90
   Hangfire.AppBuilderExtensions.UseHangfireServer(IAppBuilder builder, BackgroundJobServerOptions options, JobStorage storage) +42
   Hangfire.AppBuilderExtensions.UseHangfireServer(IAppBuilder builder, BackgroundJobServerOptions options) +35
   Hangfire.AppBuilderExtensions.UseHangfireServer(IAppBuilder builder) +46
   MyWebApplication.Startup.Configuration(IAppBuilder app) in f:\hangfire\App_Code\Startup.cs:18

Answer 1

我有两个创业点：

[assembly: OwinStartup(typeof(MyWebApplication.Startup))]

和

[ApplicationStartup]

删除ApplicationStartup并将与Hangfire相关的代码移到其他地方，解决了问题。

Answer 2

我个人使用Elmah (在较新的版本中Hangfire会自动检测到这一点)。

但是，如果您想关闭它，将日志提供程序设置为null应该可以做到这一点(您可以将其放在应用程序的启动方法中，这取决于您执行启动的机制)。

LogProvider.SetCurrentLogProvider(null);

来源：https://discuss.hangfire.io/t/turn-off-logging/1150

Answer 3

您有在解决方案中应用任何记录器库吗？正如Hangfire文档所述：

从Hangfire 1.3.0开始，如果您的应用程序已经通过反射使用了以下库之一，则不需要做任何操作(这样Hangfire本身就不依赖于其中的任何一个库)。通过检查是否存在相应的类型，将自动选择日志实现，顺序如下。 如果您想要记录Hangfire事件并且没有安装日志库，请选择上面的一个并参考它的文档。

因此，据我所知，您需要上面列出的一些日志库。