ASP.NET Core 禁止命令行打印日志

CreateDefaultBuilder(args) 中默認添加了 ConsoleLoggerProvider，但是在某些場景如果不希望在命令行顯示日志

方法一，遍歷所有 LoggerProvider ，找到並移除 ConsoleLoggerProvider

public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .ConfigureLogging((hostingContext, loggingBuilder)=>
        {
            // remove ConsoleLoggerProvider service in Production Environment
            if (hostingContext.HostingEnvironment.IsProduction())
            {
                foreach (ServiceDescriptor serviceDescriptor in loggingBuilder.Services)
                {
                    if (serviceDescriptor.ImplementationType == typeof(Microsoft.Extensions.Logging.Console.ConsoleLoggerProvider))
                    {
                        loggingBuilder.Services.Remove(serviceDescriptor);
                        break;
                    }
                }
            }
        })
        .ConfigureWebHostDefaults(webBuilder =>
        {
            webBuilder.UseStartup<Startup>();
        });

 

方法二，清空 CreateDefaultBuilder(args) 添加的所有 LoggerProvider，然后重新添加自己需要的 LoggerProvider

public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .ConfigureLogging((hostingContext, loggingBuilder) =>
        {
            // clear all previously registered providers
            loggingBuilder.ClearProviders();
            // now register providers you need
            loggingBuilder.AddDebug();
            loggingBuilder.AddEventSourceLogger();
            if (hostingContext.HostingEnvironment.IsDevelopment())
            {
                loggingBuilder.AddConsole();
            }
        })
        .ConfigureWebHostDefaults(webBuilder =>
        {
            webBuilder.UseStartup<Startup>();
        });