1.19 日志作用域：解决不同请求之间的日志干扰

1.19 日志作用域：解决不同请求之间的日志干扰.pdf

appsettings.json：

{
  "Logging": {
    "LogLevel": {
      "Default": "Debug",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    },
    "Console": {
      "IncludeScopes": true,
      "LogLevel": {
        "Default": "Information",
        "LoggingScopeDemo.Program": "Trace",
        "alogger": "Trace"
      }
    }
  }
}

Scoped 示例代码：

static void Main(string[] args)
{
    var configBuilder = new ConfigurationBuilder();
    configBuilder.AddCommandLine(args);
    configBuilder.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);
    var config = configBuilder.Build();
    IServiceCollection serviceCollection = new ServiceCollection();
    serviceCollection.AddSingleton(p => config); // 用工厂模式将配置对象注册到容器管理
    serviceCollection.AddLogging(builder =>
    {
        builder.AddConfiguration(config.GetSection("Logging"));
        builder.AddConsole();
        builder.AddDebug();
    });
    IServiceProvider service = serviceCollection.BuildServiceProvider();
    var logger = service.GetService<ILogger<Program>>();
    while (Console.ReadKey().Key != ConsoleKey.Escape)
    {
        using (logger.BeginScope("ScopeId:{scopeId}", Guid.NewGuid()))
        {
            logger.LogTrace("这是 Trace");
            logger.LogInformation("这是 Info");
            logger.LogError("这是 Error");
        }
        System.Threading.Thread.Sleep(100);
        Console.WriteLine("============ 分割线 ============");
    }
    Console.ReadKey();
}

效果：