Question

框架：.NET Core 2.1

我正在为Serilog使用Elasticsearch配置，如下面的代码所述：

Startup.cs

Log.Logger = new LoggerConfiguration().Enrich.FromLogContext()
                             .WriteTo.Elasticsearch(new ElasticsearchSinkOptions(new Uri(Configuration.GetSection("ElasticSearchURL").Value))
                             {
                                 AutoRegisterTemplate = true,
                                 MinimumLogEventLevel = Serilog.Events.LogEventLevel.Error
                             }).CreateLogger();
    services.AddSingleton(Log.Logger);

是否可以在运行时更改Logger注入实例的日志级别？

private readonly ILogger<EmailService> _logger;
public EmailService(ILogger<EmailService> logger)
{
     _logger = logger;
}

public async Task<Result> Send(Email email)
{
    // CHANGE LOG LEVEL TO LOGINFORMATION HERE
    _logger.LogInformation("MESSAGE");
}

Answer 1

您可以在Logger级别上设置它，而不是在Elasticsearch选项中设置最低日志级别？如果您能够执行类似的操作

Log.Logger = new LoggerConfiguration()
    .MinimumLevel.Error()
    .Enrich.FromLogContext()
    .WriteTo.Elasticsearch(new ElasticsearchSinkOptions(new Uri(Configuration.GetSection("ElasticSearchURL").Value))
    {
        AutoRegisterTemplate = true
    }).CreateLogger();

然后，您将可以使用LoggingLevelSwitch来控制最低级别，如下所示：

var levelSwitch = new LoggingLevelSwitch();
levelSwitch.MinimumLevel = Serilog.Events.LogLevelEvent.Error;

Log.Logger = new LoggerConfiguration()
    .MinimumLevel.ControlledBy(levelSwitch)
    .Enrich.FromLogContext()
    .WriteTo.Elasticsearch(new ElasticsearchSinkOptions(new Uri(Configuration.GetSection("ElasticSearchURL").Value))
    {
        AutoRegisterTemplate = true
    }).CreateLogger();

要使LoggingLevelSwitch实例与ILogger一起注入，您需要具有类似单例的东西。

如何在运行时更改注入实例的Serilog LogLevel

1 个答案: