如何修复过时的ILoggerFactory方法？ [英] How to fix obsolete ILoggerFactory methods?

问题描述

我将项目升级到.NET Core 2.2.x，并收到了以下代码的过时警告-两行：

I upgraded my project to .NET Core 2.2.x and got an obsolete warning regarding the following code - both lines:

public void Configure(IApplicationBuilder app, 
                      IHostingEnvironment env, 
                      ILoggerFactory loggerFactory) 
  {
    loggerFactory.AddConsole(Configuration.GetSection("Logging"));

修复建议为建议的替代方法为AddConsole（此ILoggingBuilder构建器） 。我以为那是我在用的东西。

The suggestion to fix is The recommended alternative is AddConsole(this ILoggingBuilder builder). I thought that is what I am using.

我在这里缺少什么？

推荐答案

我今天遇到了同样的问题。

I had the same issue today.

从Startup.cs中删除您的日志记录配置，然后转到Program.cs文件并添加以下内容：

Remove your logging configuration from Startup.cs and go to your Program.cs file and add something like:

var host = new WebHostBuilder()
    .UseKestrel()
    .UseContentRoot(Directory.GetCurrentDirectory())
    .UseIISIntegration()
    .UseStartup<Startup>()
    .ConfigureLogging((hostingContext, logging) =>
    {
        logging.AddConfiguration(hostingContext.Configuration.GetSection("Logging"));
        logging.AddConsole();
        logging.AddDebug();
    })
    .Build();

此命令使用了 builder，因为变量 logging是一个IloggingBuilder（而您的代码仍然是使用ILoggerFactory）

This used the 'builder' because the variable 'logging' is an IloggingBuilder (whereas your code is still using ILoggerFactory)

更新：我刚刚尝试过的另一种方法是保留在Startup.cs中，但将日志记录内容从 Configure方法移动到 ConfigureServices ：

UPDATE: The other method I just tried is to stay inside Startup.cs but move the logging stuff from the 'Configure' method to 'ConfigureServices' like this:

public void ConfigureServices(IServiceCollection services)
{
    services.AddLogging(loggingBuilder =>
    {
        loggingBuilder.AddConfiguration(Configuration.GetSection("Logging"));
        loggingBuilder.AddConsole();
        loggingBuilder.AddDebug();
    });
}

也许可以使Program.cs的污染更少...

Perhaps keeps the Program.cs less polluted...

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