ConsoleLoggerExtensions.AddConsole(ILoggerFactory)已过时代码修复

0x00.问题

netcoreapp2.2环境下， Startup.cs 代码配置如下

 public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
  {
      loggerFactory.AddConsole();
      
       //……
  }

运行输出警告：“ConsoleLoggerExtensions.AddConsole(ILoggerFactory)”已过时:“This method is obsolete and will be removed in a future version. The recommended alternative is AddConsole(this ILoggingBuilder builder).”

官方文档也注明此API已经过时。 https://docs.microsoft.com/zh-cn/dotnet/api/microsoft.extensions.logging.consoleloggerextensions.addconsole?view=aspnetcore-2.2#Microsoft_Extensions_Logging_ConsoleLoggerExtensions_AddConsole_Microsoft_Extensions_Logging_ILoggingBuilder_

0x01.推荐方法

Program.cs  配置如下

public class Program
{
    public static void Main(string[] args)
    {
        CreateWebHostBuilder(args).Build().Run();
    }

    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .UseStartup<Startup>() 
            .ConfigureLogging((hostingContext, logging) =>
            {
                logging.AddConfiguration(hostingContext.Configuration.GetSection("Logging"));
                logging.AddConsole();
                logging.AddDebug();
            });
}

或者 Startup.cs  ConfigureServices方法中配置如下

public void ConfigureServices(IServiceCollection services)
{
    services.AddLogging(logging =>
    {
        logging.AddConsole();
        logging.AddDebug();
    }); 

    //……
}