登录 .Net 核心控制台应用程序不起作用

问题描述：

我正在学习本教程:https://andrewlock.net/using-dependency-injection-in-a-net-core-console-application/

并相应地安装了软件包，但没有在任何地方打印日志.

and accordingly installed the packages but log is not getting printed anywhere.

这是我的代码:

  var serviceProvider = new ServiceCollection()
            .AddLogging()
            .AddTransient<IFoo, Foo>(s =>
            {
                return new Foo()})
            .BuildServiceProvider();

            //configure console logging
            serviceProvider
                .GetService<ILoggerFactory>()
                .AddConsole(LogLevel.Debug);

 var logger = serviceProvider.GetService<ILoggerFactory>().CreateLogger<Program>();

            logger.LogError("Starting application");

答

事实证明，控制台日志记录提供程序不会像在 net-core-1.x 版本中那样立即将消息刷新到控制台.它似乎在不同的线程上运行.有关信息，请参阅此网页:https://github.com/aspnet/Logging/issues/631

Turns out the console logging provider doesn't immediately flush the messages to the console like it did in the net-core-1.x versions. It appears to run on a different thread. See this web page for info: https://github.com/aspnet/Logging/issues/631

您可以在Main函数的末尾添加.

You can add at the end of the Main function.

serviceProvider.Dispose();

或者你可以添加.AddDebug()

            serviceProvider
            .GetService<ILoggerFactory>()
            .AddConsole(LogLevel.Debug)
            .AddDebug();

登录 .Net 核心控制台应用程序不起作用

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