Question

我最近将log4net日志记录从使用配置文件切换到以编程方式设置。这导致nhibrate条目重复2次或有时3次。这是代码。它使用的字符串看起来像“logger1 | debug，logger2 | info”

    private void SetupLog4netLoggers()
    {
        IAppender appender = GetAppender();

        SetupRootLogger(appender);

        foreach (string logger in Loggers)
        {
            CommaStringList parts = new CommaStringList(logger, '|');
            if (parts.Count != 2)
                continue;

            AddLogger(parts[0], parts[1], appender);
        }

        log.Debug("Log4net has been setup");
    }

    private IAppender GetAppender()
    {
        RollingFileAppender appender = new RollingFileAppender();
        appender.File = LogFile;
        appender.AppendToFile = true;
        appender.MaximumFileSize = MaximumFileSize;
        appender.MaxSizeRollBackups = MaximumBackups;

        PatternLayout layout = new PatternLayout(PATTERN);
        layout.ActivateOptions();

        appender.Layout = layout;
        appender.ActivateOptions();

        return appender;
    }

    private void SetupRootLogger(IAppender appender)
    {
        Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();

        hierarchy.Root.RemoveAllAppenders();
        hierarchy.Root.AddAppender(appender);
        hierarchy.Root.Level = GetLevel(RootLevel);

        hierarchy.Configured = true;

        log.Debug("Root logger setup, level[" + RootLevel + "]");
    }

    private void AddLogger(string name, string level, IAppender appender)
    {
        Logger logger = LogManager.GetRepository().GetLogger(name)as Logger;
        if (logger == null)
            return;

        logger.Level = GetLevel(level);
        logger.Additivity = false;
        logger.RemoveAllAppenders();
        logger.AddAppender(appender);

        log.Debug("logger[" + name + "] added, level[" + level + "]");
    }

这是我们在日志中看到的一个例子......

2010-05-06 15:50:39,781 [1] DEBUG NHibernate.Impl.SessionImpl - running ISession.Dispose()
2010-05-06 15:50:39,781 [1] DEBUG NHibernate.Impl.SessionImpl - closing session
2010-05-06 15:50:39,781 [1] DEBUG NHibernate.AdoNet.AbstractBatcher - running BatcherImpl.Dispose(true)
2010-05-06 15:50:39,796 [1] DEBUG NHibernate.Impl.SessionImpl - running ISession.Dispose()
2010-05-06 15:50:39,796 [1] DEBUG NHibernate.Impl.SessionImpl - closing session
2010-05-06 15:50:39,796 [1] DEBUG NHibernate.AdoNet.AbstractBatcher - running BatcherImpl.Dispose(true)
2010-05-06 15:50:39,796 [1] DEBUG NHibernate.Impl.SessionImpl - running ISession.Dispose()
2010-05-06 15:50:39,796 [1] DEBUG NHibernate.Impl.SessionImpl - closing session
2010-05-06 15:50:39,796 [1] DEBUG NHibernate.AdoNet.AbstractBatcher - running BatcherImpl.Dispose(true)

欢迎任何提示。

Answer 1

我不确定发生了什么，但我会尝试删除以下几行：

logger.Additivity = false;
logger.RemoveAllAppenders();
logger.AddAppender(appender);

记录器应该从root appender继承appender。当你以这种方式添加appender时，log4net可能会混淆一些东西，尽管不应该这样......

Answer 2

我认为答案是 - 它实际上并不是写重复的。没有调试NHibernate代码我不能确定，但我猜它可能只是写出来或反复做同样的事情

我们还是要回到使用配置文件，所以必须看看我是否仍然可以重复。

Log4net重复记录条目

2 个答案: