c# - 没有在我的 web api 中获取信息级别日志

Question

我正在使用应用程序洞察进行日志记录。
所以我注意到在跟踪中我只得到与警告、错误和严重相关的日志，但我也需要这些信息。
下面是我的代码
在程序.cs

logging.AddFilter<Microsoft.Extensions.Logging.ApplicationInsights.ApplicationInsightsLoggerProvider>(typeof(Program).FullName, LogLevel.Trace);

在 appsettings.json 我有以下规则

"NLog": {
    "autoReload": true,
    "throwConfigExceptions": true,
    "internalLogLevel": "warn",
    "internalLogFile": "${currentdir}/Logs/internal-nlog.txt",
    "extensions": [
      {
        "assembly": "NLog.Extensions.Logging"
      },
      {
        "assembly": "NLog.Web.AspNetCore"
      },
      {
        "assembly": "Microsoft.ApplicationInsights.NLogTarget"
      }
    ],
    "default-wrapper": {
      "type": "AsyncWrapper",
      "overflowAction": "Block"
    },
    "targets": {
      "blackHole": {
        "type": "Null",
        "formatMessage": false
      },
      "aiTarget": {
        "type": "ApplicationInsightsTarget"
      },
      "asyncWrapperConsoleTarget": {
        "type": "AsyncWrapper",
        "timeToSleepBetweenBatches": 0,
        "queueLimit": 1000000,
        "batchSize": 1000,
        "target": {
          "name": "ConsoleTarget",
          "type": "ColoredConsole",
          "layout": "CorrelationId= ${aspnet-item:variable=CorrelationId} ${aspnet-user-identity} ${date:universalTime=true}|${level:uppercase=true}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}|${message} ${exception:format=tostring}|${logger}|${all-event-properties}",
          "rowHighlightingRules": [
            {
              "condition": "level == LogLevel.Debug",
              "foregroundColor": "DarkGray"
            },
            {
              "condition": "level == LogLevel.Info",
              "foregroundColor": "Gray"
            },
            {
              "condition": "level == LogLevel.Warn",
              "foregroundColor": "Yellow"
            },
            {
              "condition": "level == LogLevel.Error",
              "foregroundColor": "Red"
            },
            {
              "condition": "level == LogLevel.Fatal",
              "foregroundColor": "Red",
              "backgroundColor": "White"
            }
          ]

        }
      },
 "rules": {
      "0": {
        "logger": "Microsoft.*",
        "minLevel": "debug",
        "writeTo": "blackHole",
        "final": true
      },
      "1": {
        "logger": "System.Net.Http.HttpClient.*",
        "minLevel": "info",
        "writeTo": "blackHole",
        "final": true
      },
      "2": {
        "logger": "*",
        "minLevel": "debug",
        "writeTo": "asyncWrapperDatabase"
      },
      "3": {
        "logger": "*",
        "minLevel": "trace",
        "writeTo": "aiTarget"
      }
    }

我已经在我的 cs 文件中编写了以下代码

_logger.LogInformation("Testing info log");
            _logger.LogDebug("Testing debug log");
            _logger.LogError("Testing error log");
            _logger.LogTrace("Testing trace log");
            _logger.LogCritical("Testing critical log");
            _logger.LogWarning("Testing warning log");

从上面我只得到错误、严重和警告的日志。我在做什么错了，为什么我没有得到信息级别的日志？

Answer 1

这里有2个问题。

关于应用洞察问题，您需要在 appsettings.json 中添加与应用洞察相关的配置部分。 (我在您的共享配置中只看到 NLog 部分)。即使您在 nlog 级别允许，但应用程序洞察适配器正在此处进行过滤。默认为警告或以上。根据 official doc ，类似下面的内容可以解决您的问题。

{
  "Logging": {
    "LogLevel": {
      "Default": "Debug"
    },
    "ApplicationInsights": {
      "LogLevel": {
        "Default": "Debug"
      }
    }
  }
}

注意:ApplicationInsights/LogLevel 应该像上面一样嵌套在 Logging 中，如果你注意到的话。

关于控制台日志记录问题，您的规则具有错误的目标名称。 asyncWrapperDatabase应该是 asyncWrapperConsoleTarget .