经过几年的log4Net配置，我目前正在重新熟悉它"只是工作"；，我在Visual Studio 2019中使用ASP时遇到了一个问题。NET核心。如有任何帮助，我们将不胜感激。
我有以下的过滤器和级别设置，但我的日志文件仍然以所有"；Cahtter"；进入IDE的调试窗口。正如你所看到的，我已经将级别设置为"；INFO"；并且还试图过滤掉"；噪声"；包含"；微软AspNetCore"；但没有运气。我研究过如何进行过滤，认为我做得对，但这并不能过滤任何东西。
<?xml version="1.0" encoding="utf-8" ?>
<log4net>
<appender name="DebugAppender" type="log4net.Appender.DebugAppender" >
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<appender name="RollingFile" type="log4net.Appender.RollingFileAppender">
<file value="SDPerf.log" />
<appendToFile value="true" />
<maximumFileSize value="100KB" />
<maxSizeRollBackups value="2" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %5level %logger.%method [%line] - MESSAGE: %message%newline %exception" />
</layout>
<filter type="log4net.Filter.StringMatchFilter">
<stringToMatch value="Microsoft.AspNetCore"/>
<acceptOnMatch value="false"/>
</filter>
</appender>
<root>
<level value="INFO"/>
<appender-ref ref="DebugAppender" />
<appender-ref ref="RollingFile" />
</root>
</log4net>
这是日志文件中的一个片段：
2021-05-21 15:50:01,744 INFO Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.? [?] - MESSAGE: Executing action method LongRunningTask.Controllers.HomeController.Test2 (LongRunningTask) - Validation state: Valid
2021-05-21 15:50:01,754 INFO Microsoft.AspNetCore.Mvc.ViewFeatures.PartialViewResultExecutor.? [?] - MESSAGE: Executing PartialViewResult, running view Jobs.
2021-05-21 15:50:01,762 INFO Microsoft.AspNetCore.Mvc.ViewFeatures.PartialViewResultExecutor.? [?] - MESSAGE: Executed PartialViewResult - view Jobs executed in 7.4295ms.
2021-05-21 15:50:01,768 INFO Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.? [?] - MESSAGE: Executed action LongRunningTask.Controllers.HomeController.Test2 (LongRunningTask) in 43.365ms
2021-05-21 15:50:01,772 INFO Microsoft.AspNetCore.Routing.EndpointMiddleware.? [?] - MESSAGE: Executed endpoint 'LongRunningTask.Controllers.HomeController.Test2 (LongRunningTask)'
2021-05-21 15:50:01,776 INFO Microsoft.AspNetCore.Hosting.Diagnostics.? [?] - MESSAGE: Request finished in 71.9539ms 200 text/html; charset=utf-8
2021-05-21 15:50:03,561 INFO Microsoft.AspNetCore.Hosting.Diagnostics.? [?] - MESSAGE: Request starting HTTP/2.0 GET https://localhost:44345/Home/ProcessJob
2021-05-21 15:50:03,567 INFO Microsoft.AspNetCore.Routing.EndpointMiddleware.? [?] - MESSAGE: Executing endpoint 'LongRunningTask.Controllers.HomeController.ProcessJob (LongRunningTask)'
2021-05-21 15:50:03,588 INFO Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.? [?] - MESSAGE: Executing action method LongRunningTask.Controllers.HomeController.ProcessJob (LongRunningTask) - Validation state: Valid
2021-05-21 15:50:03,592 INFO SDPerf..ctor [24] - MESSAGE: Starting Task calls
2021-05-21 15:50:03,602 INFO SDPerf.NewMethod [51] - MESSAGE: Starting iterations for method '2'
2021-05-21 15:50:03,606 INFO SDPerf.NewMethod [51] - MESSAGE: Starting iterations for method '3'
2021-05-21 15:50:03,612 INFO SDPerf.NewMethod [51] - MESSAGE: Starting iterations for method '1'
2021-05-21 15:50:03,619 INFO Microsoft.AspNetCore.Mvc.RedirectToActionResult.? [?] - MESSAGE: Executing RedirectResult, redirecting to /Home/ShowJobProgress?requestId=7b1a8cf8-641f-4599-a90f-748707f4ed63.
2021-05-21 15:50:03,621 INFO Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.? [?] - MESSAGE: Executed action LongRunningTask.Controllers.HomeController.ProcessJob (LongRunningTask) in 44.8757ms
2021-05-21 15:50:03,624 INFO Microsoft.AspNetCore.Routing.EndpointMiddleware.? [?] - MESSAGE: Executed endpoint 'LongRunningTask.Controllers.HomeController.ProcessJob (LongRunningTask)'
2021-05-21 15:50:03,627 INFO Microsoft.AspNetCore.Hosting.Diagnostics.? [
最终通过反复试验解决了这个问题。虽然我找不到任何例子来帮助我理解它，但我发现"；StringMatchFilter"；方法只适用于消息的原始文本，而不是记录的整行。