如何将 Log4Net 日志发送到 Application Insights for .NET Core 3.1 Web 应用程序？

Posted 2023-02-19

【中文标题】如何将 Log4Net 日志发送到 Application Insights for .NET Core 3.1 Web 应用程序？

【英文标题】：How to send Log4Net logs to Application Insights for .NET Core 3.1 web application?

【发布时间】：2021-11-12 10:42:14

【问题描述】：

无法将 Log4Net 日志刷新到用于 net core 3.1 的 Web 应用中的 Azure 应用洞察

这是项目文件。

log4net.config

<?xml version="1.0" encoding="utf-8"?>
<log4net>
        <!--Application Insights Appender-->
        <appender name='aiAppender' 
        type='Microsoft.ApplicationInsights.Log4NetAppender.ApplicationInsightsAppender, 
        Microsoft.ApplicationInsights.Log4NetAppender'>
        <layout type='log4net.Layout.PatternLayout'>
        <conversionPattern value='%message%newline' />
        </layout>
        </appender>
        <root>
        <level value="ALL" />
        <appender-ref ref="aiAppender" />
        </root>
</log4net>

ApplicationInsights.config

<?xml version="1.0" encoding="utf-8"?>
<ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
    <InstrumentationKey>..Added InstrumentationKey here..</InstrumentationKey>
</ApplicationInsights>

Startup.cs

 public void ConfigureServices(IServiceCollection services)
    
        services.AddApplicationInsightsTelemetry();
    

Nuget 包：

appsettings.json

      "ApplicationInsights": 
        "InstrumentationKey": "<Added instrumentation key here>"
      ,
      "Logging": 
        "ApplicationInsights": 
          "LogLevel": 
            "Default": "Error"
          
        
      

【参考方案1】：

我终于通过更新 Startup.cs 中的 ConfigureServices() 来完成这项工作

public void ConfigureServices(IServiceCollection services)
    
        services.AddApplicationInsightsTelemetry(new ApplicationInsightsServiceOptions
        
            InstrumentationKey = Configuration["ApplicationInsights:InstrumentationKey"],
            EnableActiveTelemetryConfigurationSetup = true
        );