如何在ASP.NET 5中访问记录器(How to access logger in ASP.NET 5)

如何在ASP.NET 5中访问记录器(How to access logger in ASP.NET 5)

建议的方法之一是使用依赖注入将记录器注入到类的构造函数中。 https://docs.asp.net/en/latest/fundamentals/logging.html

但是，如果我的类没有在DI容器中注册，或者我只是想为每个类创建一个静态记录器，那该怎么办呢？ 我怎样才能访问在Startup.cs中配置的LoggerFactory？

这就是我使用nlog做的方法：

private static readonly Logger _logger = LogManager.GetCurrentClassLogger();

One of the suggested approaches is to use Dependency Injection to inject logger to the constructor of the class. https://docs.asp.net/en/latest/fundamentals/logging.html

However, what if my class is not registered with DI container or I just want to create a static logger per a class. How can I still access LoggerFactory which was configured in Startup.cs?

This is how I would do it using nlog:

private static readonly Logger _logger = LogManager.GetCurrentClassLogger();

最满意答案

您可以在Startup定义一个静态属性，公开LoggerFactory ：

public class Startup { public Startup(ILoggerFactory loggerFactory) { LoggerFactory = loggerFactory; } public static ILoggerFactory LoggerFactory { get; set; } public void ConfigureServices(IServiceCollection services) { //.. } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { //.. } }

然后在需要记录器的地方访问它：

public class MyClass { private static readonly ILogger _log = Startup.LoggerFactory.CreateLogger<MyClass>(); //.. }

You could define a static property in your Startup which exposes the LoggerFactory:

public class Startup { public Startup(ILoggerFactory loggerFactory) { LoggerFactory = loggerFactory; } public static ILoggerFactory LoggerFactory { get; set; } public void ConfigureServices(IServiceCollection services) { //.. } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { //.. } }

And then access it where you need a logger:

public class MyClass { private static readonly ILogger _log = Startup.LoggerFactory.CreateLogger<MyClass>(); //.. }