无法以编程方式配置 log4net Logger

Question

我需要以编程方式配置 log4net Logger。具体来说，我需要添加一个 Logger 和一个 appender。然而，当我检索它时，我发现它没有正确的级别或附加程序，希望我错过了一些简单的配置仪式：

        var patternLayout = new PatternLayout { ConversionPattern = "%message%newline" };
        patternLayout.ActivateOptions();

        var hierarchy = (Hierarchy)LogManager.GetRepository();

        var testAppender = new RollingFileAppender
        {
            Name = "test-appender",
            AppendToFile = true,
            File = "c:\temp\test.log",
            Layout = patternLayout,
            DatePattern = "yyyyMMdd-HHmm",
            MaxSizeRollBackups = 50,
            MaximumFileSize = "20MB",
            RollingStyle = RollingFileAppender.RollingMode.Size,
            StaticLogFileName = false,
            Encoding = Encoding.UTF8,
            PreserveLogFileNameExtension = true,
            Threshold = Level.Debug
        };

        testAppender.ActivateOptions();

        var testLogger = hierarchy.LoggerFactory.CreateLogger(hierarchy, "test");
        testLogger.Hierarchy = hierarchy;
        testLogger.AddAppender(testAppender);
        testLogger.Repository.Configured = true;
        testLogger.Level = Level.Debug;
        testLogger.Additivity = false;

        hierarchy.Configured = true;

        var testLogger = LogManager.GetLogger("test");

记录器 'testLogger' 的级别为空且没有附加程序。我错过了什么？

Answer 1

而不是调用

var testLogger = hierarchy.LoggerFactory.CreateLogger(hierarchy, "test");

我打电话

var testLogger = hierarchy.GetLogger("test", hierarchy.LoggerFactory);

这奏效了。如果记录器不存在，GetLogger 将创建它。

无法以编程方式配置 log4net Logger

Can't configure log4net Logger programmatically

log4net

configure

programmatically