ASP.NET Core 2 日志记录更新后将 ILogger 映射到 Serilog 的记录器

Question

You can then go ahead and delete any other logger configuration that’s hanging around: there’s no need for a "Logging" section in appsettings.json, no AddLogging() anywhere, and no configuration through ILoggerFactory in Startup.cs.

我在控制器中 using Serilog; 和 ILogger 时遇到异常。

private readonly ILogger _logger;

public CustomersController(ILogger logger)
{
    _logger = logger;
}

结果：

An unhandled exception occurred while processing the request.
InvalidOperationException: Unable to resolve service for type 'Serilog.ILogger' while attempting to activate 'Customers.Api.Controllers.CustomersController'.

我是否还需要在 Startup.ConfigureServices() 方法中向 DI 提供一些信息？

我的程序 class，据我所知，遵循 post.

中的说明

public class Program
{
    public static void Main(string[] args)
    {
        Log.Logger = new LoggerConfiguration()
            .MinimumLevel.Debug()
            .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
            .Enrich.FromLogContext()
            .WriteTo.Console()
            .CreateLogger();

        BuildWebHost(args).Run();
    }

    public static IWebHost BuildWebHost(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .UseStartup<Startup>()
            .UseSerilog()
            .Build();
}

Answer 1

将预期类型从 ILogger logger 更改为 ILogger<CustomersController> 记录器：

private readonly ILogger _logger;

public CustomersController(ILogger<CustomersController> logger)
{
    _logger = logger;
}

Answer 2

如果您仍然希望使用 Serilog 自己的 ILogger 而不是 ASP.NET Core 的 ILogger<T>，另一种选择是在您的 IoC 容器中注册 Serilog 记录器。

在 https://github.com/nblumhardt/autofac-serilog-integration 上有 Autofac 的集成，其他容器也可能有集成包。

Answer 3

您可以按照以下代码使用

//using Microsoft.Extensions.Logging;

public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

        // 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)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc();
            //Logger for File
            loggerFactory.AddFile("FilePath/FileName-{Date}.txt");

        }
    }

    //Add following code into Controller:

    private readonly ILogger<ControllerName> _log;

    public ControllerConstructor(ILogger<ControllerName>logger)
     {
          _log = logger;
     }
    [HttpGet]
    public ActionResult GetExample()
    {
        try
        {
            //TODO:Log Informationenter code here
            _log.LogInformatio("LogInformation");
        }
        catch (Exception exception)
        {
             //TODO: Log Exception
             _log.LogError(exception, exception.Message + "\n\n");
        } 
        return view("viewName");
    }

ASP.NET Core 2 日志记录更新后将 ILogger 映射到 Serilog 的记录器

Map ILogger to Serilog's Logger after ASP.NET Core 2 logging update

c#

asp.net-core

serilog