Application Insights 有指标和依赖项，但没有信息跟踪

Question

我有一个 ASP.NET Core 5 应用程序。我看不到自定义跟踪，但可以看到指标和依赖项。我以为这是 LogLevel 的问题，但似乎我找不到正确的设置：

启动.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddControllersWithViews();
    services.AddApplicationInsightsTelemetry(Configuration["ApplicationInsights:ConnectionString"]);
}

应用程序设置.json

 "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Information",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "ApplicationInsights": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Information"
    },
    "ConnectionString": "InstrumentationKey=*****;IngestionEndpoint=https://westeurope-5.in.applicationinsights.azure.com/"
  },

代码：

public async Task SendMessageAsync()
{
    ...
    using (this._logger.BeginScope(nameof(SendMessageAsync)))
    {
        ...
        _logger.LogInformation($"Message sent...");
        ...
    }
 }

在 VS 输出中，我看到正在记录信息消息，但没有看到 LogInformation 的 AppInsights 遥测。

SenderApp.Controllers.HomeController: Information: Message sent...
Application Insights Telemetry: {"name":"AppDependencies","time":...
Application Insights Telemetry: {"name":"AppDependencies","time":...

Answer 1

答案很简单，但是不容易调试。

appsettings.josn

中的 AppInsights 日志记录设置应位于

Logging

下

     "Logging": {
        "LogLevel": {
          "Default": "Information",
          "Microsoft": "Information",
          "Microsoft.Hosting.Lifetime": "Information"
        },
        "ApplicationInsights": {
          "LogLevel": {
            "Default": "Information",
            "Microsoft": "Information"
          }
        }
      },
      "ApplicationInsights": {
        "ConnectionString": "InstrumentationKey=*****;IngestionEndpoint=https://westeurope-5.in.applicationinsights.azure.com/"
      }