统一日志记录不写入文件

Question

我有以下运行良好的示例代码：

public static void Main()
{
    var traceListener = new FlatFileTraceListener("unifylogging.log",
        "--------------------",
        "-----------------------------");

    var config = new LoggingConfiguration();
    config.AddLogSource("My Log Source", SourceLevels.All, true).AddTraceListener(traceListener);

    var logger = new LogWriter(config);

    logger.Write("This is a test");
}

但是，如果我将 logger.Write 调用更改为直接从手册中提取的调用，它不会写任何内容：

logger.Write("Log entry with a category, priority, event ID,severity, and title.",
    "General",
    8,
    9003,
    TraceEventType.Warning,
    "Logging Block Examples");

我也尝试过使用 ConsoleTraceListener 以及 Write 方法的一些其他重载，包括：

logger.Write("Hello from unify", "Cat1");
logger.Write("Hello from unify", new[] { "Cat1" });

唯一有效的是 Write(string)。

NB The suggested duplicate is with regards to Workflow Foundation and seems to be about the System.Diagnostics.Trace tracing. This is about Unify Logging.

Answer 1

原来有一些奇怪的命名。 .AddLogSource(string name) 方法中的 name 参数 实际上 定义了此配置将收集的类别。

因此，通过更改类别以匹配日志源，如下所示：

public static void Main()
{
    var traceListener = new ConsoleTraceListener();

    var config = new LoggingConfiguration();

    config.AddLogSource("My Log Source", SourceLevels.All, true).AddTraceListener(traceListener);

    var logger = new LogWriter(config);

    logger.Write("This is a log.", "My Log Source");
}

将生成预期的日志。

统一日志记录不写入文件

Unify logging not writing to file

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