How to register ILogger for injection in ASP.NET MVC 6

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你的背包
你的背包 2021-02-06 20:55

I have a ASP.NET MVC 6 (beta-4) app.

public void ConfigureServices(IServiceCollection services)
{
    // Logging
    services.AddLogging();

    // ...
}

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3条回答
  •  余生分开走
    2021-02-06 21:50

    I assumed that services.AddLogging(); was doing the right thing and registering ILogger. After looking at the source (https://github.com/aspnet/Logging/blob/d874c5726e713d3eb34938f85faf7be61aae0f2a/src/Microsoft.Framework.Logging/LoggingServiceCollectionExtensions.cs) I found that it's actually registering ILogger<>. Changing the signature of ILogger to ILogger makes the above example work.

    public class HomeController : 
        Controller
    {
        ILogger _logger;
    
        public HomeController(ILogger logger) 
        {
            _logger = logger;
        }
    
        // ...
    }
    

    Thanks to @Steve for setting me on the right track to find this.

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