登录AspNetCore主机/重定向控制台输出

Question

我最近刚在我们的软件中添加了一个AspNetCore项目，它不过是一个小型的MVC站点。为了主持这个项目，我使用Microsoft.AspNetCore.Hosting和Topshelf的功能在windows服务中运行宿主。

问题是，一旦宿主进程在windows服务中运行，我就无法从它获得任何调试信息。通常，所有信息都会写入控制台，而且由于我在软件中使用了自己的跟踪/日志记录，所以如果可能的话，我希望继续使用它，或者至少告诉宿主进程将所有信息转发到跟踪的方法调用中，以避免遗漏任何信息，并在将来实现像NLog这样的常见记录器。

这是主机的代码

public class Program
{
    public static void Main(string[] args)
    {
        // Name of the executable
        var nameOfExe = Process.GetCurrentProcess().MainModule.FileName;

        // Path of the current executable
        var pathToContentRoot = Path.GetDirectoryName(nameOfExe);

        // Path of the www root for the static files
        var pathToWebRoot = pathToContentRoot + @"\wwwroot";

        IWebHost host = WebHost.CreateDefaultBuilder()
        .UseKestrel()
        .UseContentRoot(pathToContentRoot)
        .UseIISIntegration()
        .UseWebRoot(pathToWebRoot)
        .UseStartup<Startup>()
        .UseApplicationInsights()
        .Build();

        host.RunAsCustomService();
    }
}


public static class WebHostServiceExtensions
{
    public static void RunAsCustomService(this IWebHost host)
    {
        var webHostService = new Service(host);
        ServiceBase.Run(webHostService);
    }
}


public class Startup
{
    public Startup(IHostingEnvironment env)
    {
        if(env.IsDevelopment())
        {
            env.ContentRootPath = env.ContentRootPath.Replace("Bin", @"Main");
            env.ContentRootFileProvider = new PhysicalFileProvider(env.ContentRootPath);
            env.WebRootPath = env.WebRootPath.Replace("Bin", @"Main");
            env.WebRootFileProvider = new PhysicalFileProvider(env.WebRootPath);
        }

        var builder = new ConfigurationBuilder()
            .SetBasePath(env.ContentRootPath)
            .AddJsonFile("appsettings.json", optional: false, 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.AddSession(options => {
            options.IdleTimeout = TimeSpan.FromMinutes(500); });
        // Add framework services.
        services
            .AddLocalization(options => options.ResourcesPath = "Resources")

            .AddMvc().ConfigureApplicationPartManager(manager =>
            {
                var oldMetadataReferenceFeatureProvider = manager.FeatureProviders.First(f => f is MetadataReferenceFeatureProvider);
                manager.FeatureProviders.Remove(oldMetadataReferenceFeatureProvider);
                manager.FeatureProviders.Add(new ReferencesMetadataReferenceFeatureProvider());
            })
            .AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix)
            .AddDataAnnotationsLocalization();

        services.AddSingleton<FFDModel>();
        services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

        services.Configure<WebSettings>(Configuration.GetSection("ValidationFilters"));
    }

    // 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)
    {
        app.UseSession();

        loggerFactory.AddConsole(Configuration.GetSection("Logging"));
        loggerFactory.AddDebug();

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

        app.UseStaticFiles();

        IList<CultureInfo> supportedCultures = new List<CultureInfo>
        {
             new CultureInfo("en-US"),
             new CultureInfo("de-DE"),
            };
        app.UseRequestLocalization(new RequestLocalizationOptions
        {
            DefaultRequestCulture = new RequestCulture("en-US"),
            SupportedCultures = supportedCultures,
            SupportedUICultures = supportedCultures
        });

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

Answer 1

我将使用Serilog https://serilog.net登录任何.NET应用程序。

可以将Serilog配置为将输出重定向到多个目标，例如控制台、滚动文件。如果您有自定义日志目标/需求，则可以通过编写自定义Sink来转发输出。

使用ASP.Net扩展https://github.com/serilog/serilog-aspnetcore很容易集成到IWebHostBuilder核心应用程序中

源

• Serilog ASP.Net核心示例https://github.com/serilog/serilog-aspnetcore/tree/dev/samples/SimpleWebSample
• 提供Sinks https://github.com/serilog/serilog/wiki/Provided-Sinks
• 开发接收器https://github.com/serilog/serilog/wiki/Developing-a-sink