从作为Azure Web App托管的ASP.NET 5应用程序进行日志记录 [英] Logging from ASP.NET 5 application hosted as Azure Web App

问题描述

我有一个ASP.NET 5 Web API，我将其作为Web App托管在Azure中.我想使用Azure Diagnostics从我的代码中记录消息.有多篇文章，包括

但是以下调用不会产生日志:

  System.Diagnostics.Trace.TraceError("TEST");System.Diagnostics.Trace.TraceInformation("TEST");System.Diagnostics.Trace.TraceWarning("TEST");System.Diagnostics.Trace.WriteLine("TEST"); 

我试图手动定义 TRACE 符号，但是没有运气:

我还尝试使用新的 Microsoft.Extensions.Logging 框架并使用 ILogger.Log API，但再次没有任何结果:

  public void Configure(IApplicationBuilder应用，IHostingEnvironment env，ILoggerFactory loggerFactory){loggerFactory.MinimumLevel = LogLevel.Debug;var sourceSwitch = new SourceSwitch("Sandbox.AspNet5.ApiApp-Demo");sourceSwitch.Level = SourceLevels.All;loggerFactory.AddTraceSource(sourceSwitch，新的ConsoleTraceListener(false));loggerFactory.AddTraceSource(sourceSwitch，新的EventLogTraceListener("Application"));} 

关于我在做什么错的任何想法?

解决方案

我为azure应用找到了一个简单的技巧，请参阅

  loggerFactory.AddConsole(Configuration.GetSection("Logging"));loggerFactory.AddDebug();loggerFactory.AddAzureWebAppDiagnostics();//为默认设置. 

或用于自定义设置:

  loggerFactory.AddAzureWebAppDiagnostics(new AzureAppServicesDiagnosticsSettings(...));//添加自定义设置.//有关详细的成员属性，请参见此处:https://github.com/aspnet/Logging/blob/dev/src/Microsoft.Extensions.Logging.AzureAppServices/AzureAppServicesDiagnosticsSettings.cs 

并在Azure上启用诊断日志，同时在Blob和File上都可以正常工作.不需要任何额外的配置.:)

I have an ASP.NET 5 Web API that I host in Azure as a Web App. I want to log messages from my code using Azure Diagnostics. There are multiple article including Azure docs that suggest that it should be as easy as System.Diagnostics.Trace.WriteLine once enabled. The logs should show up under LogsFiles/Application and in log stream in Azure.

I enabled application logging for the web app:

But the following calls produces no logs:

System.Diagnostics.Trace.TraceError("TEST");
System.Diagnostics.Trace.TraceInformation("TEST");
System.Diagnostics.Trace.TraceWarning("TEST");
System.Diagnostics.Trace.WriteLine("TEST");

I tried to manually define TRACE symbol, but with no luck:

I also tried to use the new Microsoft.Extensions.Logging framework and use ILogger.Log API, but without any results again:

public void Configure(IApplicationBuilder app, 
                      IHostingEnvironment env, 
                      ILoggerFactory loggerFactory)
{
    loggerFactory.MinimumLevel = LogLevel.Debug;

    var sourceSwitch = new SourceSwitch("Sandbox.AspNet5.ApiApp-Demo");
    sourceSwitch.Level = SourceLevels.All;
    loggerFactory.AddTraceSource(sourceSwitch, 
                                 new ConsoleTraceListener(false));
    loggerFactory.AddTraceSource(sourceSwitch, 
                                 new EventLogTraceListener("Application"));
}

Any ideas on what am I doing wrong?

解决方案

I've found an simple trick for azure app ,see https://github.com/aspnet/Logging/tree/dev/src/Microsoft.Extensions.Logging.AzureAppServices, please add the package "Microsoft.Extensions.Logging.AzureAppServices": "1.0.0-preview1-final" and update related dependencies, add the azure diagnostics in startup.cs like this :

loggerFactory.AddConsole(Configuration.GetSection("Logging"));
loggerFactory.AddDebug();
loggerFactory.AddAzureWebAppDiagnostics(); // for default setting.

or for custom setting:

loggerFactory.AddAzureWebAppDiagnostics(new AzureAppServicesDiagnosticsSettings( ...)); // add custom setting.
// see here for detailed member properties: https://github.com/aspnet/Logging/blob/dev/src/Microsoft.Extensions.Logging.AzureAppServices/AzureAppServicesDiagnosticsSettings.cs

And enable the diagnostics log on azure, both logging on blob and file are work well. No need for any extra configuration. :)

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