NLog 没有将调试事件写入日志

Question

我有以下 appsettings.json

{
  "Logging": {
    "LogLevel": {
      "Default": "Trace",
      "Microsoft": "Trace",
      "Microsoft.Hosting.Lifetime": "Trace"
    }
  },
  "ConnectionStrings": {
    "dbDatabase": "Server=aaaa-aaaa;Database=fffff;uid=fffff;pwd=fffff;Trusted_Connection=True;"
  },
  "AllowedHosts": "*",
  "Jwt": {
    "Key": "wwwww",
    "Issuer": "Test.com"
  }
}

我的 Program.cs 看起来像这样

public class Program
    {
        public static void Main(string[] args)
        {
            var logger = NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger();

            logger.Debug("init main");
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                })
                .ConfigureLogging(logging =>
                {
                    logging.ClearProviders();
                    logging.SetMinimumLevel(LogLevel.Trace);
                })
                .UseNLog();  // NLog: Setup NLog for Dependency injection
    }

我的 nlog.config 看起来像这样

<?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"
      autoReload="true"
      internalLogLevel="Info"
      internalLogFile="c:\temp\internal-nlog.txt">

  <!-- enable asp.net core layout renderers -->
  <extensions>
    <add assembly="NLog.Web.AspNetCore"/>
  </extensions>

  <!-- the targets to write to -->
  <targets>
    <!-- write logs to file  -->
    <target xsi:type="File" name="allfile" fileName="c:\temp\nlog-all-${shortdate}.log"
            layout="${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}" />

    <!-- another file log, only own logs. Uses some ASP.NET core renderers -->
    <target xsi:type="File" name="ownFile-web" fileName="c:\temp\nlog-own-${shortdate}.log"
            layout="${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}" />
  </targets>

  <!-- rules to map from logger name to target -->
  <rules>
    <!--All logs, including from Microsoft-->
    <logger name="*" minlevel="Trace" writeTo="allfile" />

    <!--Skip non-critical Microsoft logs and so log only own logs-->
    <logger name="Microsoft.*" maxlevel="Trace" final="true" /> <!-- BlackHole without writeTo -->
    <logger name="System.Net.Http.*" maxlevel="Trace" final="true" /> <!-- BlackHole without writeTo -->

    <logger name="*" minlevel="Trace" writeTo="ownFile-web" />
  </rules>
</nlog>

但是，当我从我的代码中调用 _logger.LogDebug("test"); 时，它不会被写入日志。

如果我打电话给_logger.LogError("test");，它确实会被写入。

发生了什么事。这显然是一个日志级别问题，但我已将所有设置设置为 Trace！

Answer 1

在 appsettings.json 中定义应记录的命名空间。

例如：

"Logging": {
  "LogLevel": {
     "MyNameSpace" : "Information"}}

Answer 2

我重新启动了我的机器，突然间开始出现调试级别的日志！

不知道到底发生了什么。