Этот ответ основан на Как программно настроить log4net с нуля (без настроек) .Однако, поскольку этот ответ предоставляет решение только для корневого регистратора, я немного его расширил.
/// <summary>
/// Test for Log4Net
/// </summary>
public static void TestLog4Net()
{
// Configures log4net
ConfigureLog4net();
ILog log = LogManager.GetLogger("foo");
log.Debug("This should not appear in a logfile!");
ILog log2 = LogManager.GetLogger("NHibernate.SQL");
log2.Debug("This should only appear in the NH logfile!");
ILog log3 = LogManager.GetLogger("MyProgram");
log3.Debug("This should appear in the main program logfile!");
}
/// <summary>
/// Configures log4net
/// </summary>
public static void ConfigureLog4net()
{
Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
// Remove any other appenders
hierarchy.Root.RemoveAllAppenders();
// define some basic settings for the root
Logger rootLogger = hierarchy.Root;
rootLogger.Level = Level.Debug;
// declare a RollingFileAppender with 5MB per file and max. 10 files
RollingFileAppender appenderNH = new RollingFileAppender();
appenderNH.Name = "RollingLogFileAppenderNHibernate";
appenderNH.AppendToFile = true;
appenderNH.MaximumFileSize = "5MB";
appenderNH.MaxSizeRollBackups = 10;
appenderNH.RollingStyle = RollingFileAppender.RollingMode.Size;
appenderNH.StaticLogFileName = true;
appenderNH.LockingModel = new FileAppender.MinimalLock();
appenderNH.File = "log-nhibernate.log";
appenderNH.Layout = new PatternLayout("%date - %message%newline");
// this activates the FileAppender (without it, nothing would be written)
appenderNH.ActivateOptions();
// This is required, so that we can access the Logger by using
// LogManager.GetLogger("NHibernate.SQL") and it can used by NHibernate
Logger loggerNH = hierarchy.GetLogger("NHibernate.SQL") as Logger;
loggerNH.Level = Level.Debug;
loggerNH.AddAppender(appenderNH);
// declare RollingFileAppender with 5MB per file and max. 10 files
RollingFileAppender appenderMain = new RollingFileAppender();
appenderMain.Name = "RollingLogFileAppenderMyProgram";
appenderMain.AppendToFile = true;
appenderMain.MaximumFileSize = "5MB";
appenderMain.MaxSizeRollBackups = 10;
appenderMain.RollingStyle = RollingFileAppender.RollingMode.Size;
appenderMain.StaticLogFileName = true;
appenderMain.LockingModel = new FileAppender.MinimalLock();
appenderMain.File = "log-MyProgram.log";
appenderMain.Layout = new PatternLayout(
"%date [%thread] %-5level %logger [%ndc] - %message%newline");
// this activates the FileAppender (without it, nothing would be written)
appenderMain.ActivateOptions();
// This is required, so that we can access the Logger by using
// LogManager.GetLogger("MyProgram")
Logger logger = hierarchy.GetLogger("MyProgram") as Logger;
logger.Level = Level.Debug;
logger.AddAppender(appenderMain);
// this is required to tell log4net that we're done
// with the configuration, so the logging can start
hierarchy.Configured = true;
}