.NET Core 下使用 Serilog 记录日志

Serilog

Like many other libraries for .NET, Serilog provides diagnostic logging to files, the console, and elsewhere. It is easy to set up, has a clean API, and is portable between recent .NET platforms.
Unlike other logging libraries, Serilog is built with powerful structured event data in mind.

最佳实践

控制台项目

在项目中添加下面几个组件包

Install-Package Serilog.Extensions.Logging Install-Package Serilog.Sinks.Console Install-Package Serilog.Sinks.File 

class Program {     static async Task Main(string[] args)     {         Log.Logger = new LoggerConfiguration()            .MinimumLevel.Information()            .MinimumLevel.Override("Microsoft", LogEventLevel.Warning) #if DEBUG             .MinimumLevel.Override("Xxx", LogEventLevel.Debug) #else             .MinimumLevel.Override("Xxx", LogEventLevel.Information) #endif            .Enrich.FromLogContext()            .WriteTo.File(Path.Combine(Directory.GetCurrentDirectory(), "Logs/logs.txt"))            .WriteTo.Console()            .CreateLogger();          await CreateHostBuilder(args).RunConsoleAsync();     }      public static IHostBuilder CreateHostBuilder(string[] args) =>         Host.CreateDefaultBuilder(args)             .ConfigureLogging((context, logging) => logging.ClearProviders())             .ConfigureServices((hostContext, services) =>             {                 services.AddHostedService<XxxHostedService>();             }); } 

//XxxHostedService.cs public class XxxHostedService : IHostedService {     private readonly IHostApplicationLifetime _hostApplicationLifetime;      public XxxHostedService(IHostApplicationLifetime hostApplicationLifetime)     {         _hostApplicationLifetime = hostApplicationLifetime;     }      public async Task StartAsync(CancellationToken cancellationToken)     {         using var application = AbpApplicationFactory.Create<XxxModule>(options =>         {             options.UseAutofac();             options.Services.AddLogging(c => c.AddSerilog());         });         application.Initialize();          var service = await application.ServiceProvider.GetRequiredService<XxxService>();         service.XxxAsync();          application.Shutdown();          _hostApplicationLifetime.StopApplication();     }      public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask; } 

AspNetCore项目

在项目中添加下面几个组件包

Install-Package Serilog.AspNetCore Install-Package Serilog.Sinks.Async Install-Package Serilog.Sinks.File 

public static async Task Main(string[] args) {     Log.Logger = new LoggerConfiguration() #if DEBUG         .MinimumLevel.Debug() #else         .MinimumLevel.Information() #endif         .MinimumLevel.Override("Microsoft", LogEventLevel.Information)         .Enrich.FromLogContext()         .WriteTo.Async(c => c.File($"Logs/{DateTime.Now:yyyy/MMdd}/logs.txt"))         .CreateLogger();          try         {             Log.Information("Starting Xxx.");              await CreateHostBuilder(args).Build().RunAsync();         }         catch (Exception ex)         {             Log.Fatal(ex, "Xxx terminated unexpectedly!");         }         finally         {             Log.CloseAndFlush();         }     }      internal static IHostBuilder CreateHostBuilder(string[] args) =>         Host.CreateDefaultBuilder(args)             .ConfigureWebHostDefaults(webBuilder =>             {                 webBuilder.UseIISIntegration()                           .UseStartup<Startup>();             }).UseAutofac().UseSerilog(); }