log4net Configuration for console app

问题:

can anyone suggest how to configure the log4net for an console app?

Or at least how/where to catch the Application_Start event? (It seams that some calls are required at this moment)

Thanks in advance!

回答1:

You need to configure it before the first logger is instantiated.

To do so:

• Your main class (Program.cs) should not have a logger

• The main method should not reference any classes that have a logger.

• You can then configure log4net in the main method.

Alternatively you can use a wrapper class to instantiate loggers, that ensures log4net is configured before creating a logger, e.g.:

static class Log4NetHelper
{
    private static bool _isConfigured;

    static void EnsureConfigured()
    {
        if (!_isConfigured)
        {
            ... configure log4net here ...
            _isConfigured = true;
        }
    }

    public static ILog GetLogger(string name)
    {
        EnsureConfigured();
        log4net.ILog logger = log4net.LogManager.GetLogger(name);
        return logger;
    }
}

回答2:

Try writing

[assembly: log4net.Config.XmlConfigurator(Watch = true)]

in AssemblyInfo.cs

That's it!