我正在尝试将异常记录到 Application Insights。我通过直接调用 TelemetryClient.TrackException 成功地做到了这一点。但是，我想在我的代码中对此进行抽象，以防将来我想登录到其他平台，因此我只想坚持使用 ILogger 接口(interface)。

我发现您可以使用 ILoggerFactory.AddApplicationInsights(已实现 here)，但无论我做了什么，我都没有看到日志显示在 ApplicationInsights 中。

下面是我的代码:

Startup.cs

    IConfigurationRoot Configuration { get; set; }
    ILoggerFactory LoggerFactory { get; set; }
    IServiceProvider ServiceProvider { get; set; }

    public Startup( IHostingEnvironment hostingEnvironment, ILoggerFactory loggerFactory )
    {
        this.LoggerFactory = loggerFactory;
        string configurationFilePath = "abc.json";

        this.Configuration = new ConfigurationBuilder()
            .SetBasePath( hostingEnvironment.ContentRootPath )
            .AddJsonFile( configurationFilePath, optional: true, reloadOnChange: true )
            .AddEnvironmentVariables()
            .Build();
    }

    public void Configure(
        IApplicationBuilder applicationBuilder,
        IHostingEnvironment hostingEnvironment,
        ILoggerFactory loggerFactory,
        IServiceProvider serviceProvider )
    {
        this.ServiceProvider = serviceProvider;
        loggerFactory.AddApplicationInsights( serviceProvider );
        applicationBuilder.UseMvc();
    }

    public void ConfigureServices( IServiceCollection services )
    {
        services.AddApplicationInsightsTelemetry( this.Configuration );
        services.AddMvc( .... // A bunch of options here ... )
    }

然后，我尝试像这样在我的 Controller 中使用它:

    ILogger<XController> Logger { get; set; }

    public XController( ILogger<XController> logger )
    {
        this.Logger = logger;
    }

    [HttpPost]
    [Route( "v3.0/abcd" )]
    public async Task PostEvent( [FromBody] XEvent xEvent )
    {
        this.Logger.LogError( 0, new Exception( "1234" ), "1234" );
    }

但是，我根本没有看到与请求相关的任何异常。如果我用 TelemetryClient.TrackException 替换 Logger.LogError 行(并首先创建 TelemetryClient)，那么我可以毫无问题地看到异常.

我不知道我做错了什么。有人能帮忙吗？

最佳答案

根据您的描述，我建议您尝试使用以下代码启用 ILogger 将错误记录到 ApplicationInsights。

您可以直接使用 loggerFactory.AddApplicationInsights() 方法来启用 ApplicationInsights ILogger。

更多细节，你可以引用下面的代码:

启动类:

public class Startup
{
    public Startup(IHostingEnvironment env)
    {
        var builder = new ConfigurationBuilder()
            .SetBasePath(env.ContentRootPath)
            .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
            .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
            .AddEnvironmentVariables();
        Configuration = builder.Build();
    }

    public IConfigurationRoot Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddApplicationInsightsTelemetry(Configuration);
        // Add framework services.
        services.AddMvc();
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
    {

        loggerFactory.AddApplicationInsights(app.ApplicationServices,LogLevel.Warning);

        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseBrowserLink();
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");
        }

        app.UseStaticFiles();

        app.UseMvc(routes =>
        {
            routes.MapRoute(
                name: "default",
                template: "{controller=Home}/{action=Index}/{id?}");
        });
    }
}

appsettings.json:

{

  "ApplicationInsights": {
    "InstrumentationKey": "yourkey"
  }
}

结果:

更新:

在搜索功能中找到的记录。

关于c# - 将 Application Insights 与 ILoggerFactory 结合使用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45022693/