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(); 4       
       //……
  }

 

运行输出警告：“ConsoleLoggerExtensions.AddConsole(ILoggerFactory)”已过时:“This method is obsolete and will be removed in a future version.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) =>
 { 13                 logging.AddConfiguration(hostingContext.Configuration.GetSection("Logging")); 14  logging.AddConsole(); 15  logging.AddDebug(); 16  }); 17 }

 

或者 Startup.cs  ConfigureServices方法中配置如下

public void ConfigureServices(IServiceCollection services)
{
    services.AddLogging(logging =>
 {  5  logging.AddConsole();  6  logging.AddDebug();  7  }); 

    //……
}