log4net 设置两个文件的日志记录与 c# 代码的不同级别日志记录

Question

这是我的问题，我想通过 c# 应用程序和 log4net 登录 2 个不同的文件（一个用于错误，一个用于普通信息），我在 xml 中找到了配置，但我想做它来自代码，这是我找到的用于设置一个文件的日志记录的来源：

 public static void Setup()
    {

        Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
        hierarchy.Root.RemoveAllAppenders();

        PatternLayout patternLayout = new PatternLayout();

        patternLayout.ConversionPattern = "%date THREAD [%thread] %logger: %message%newline"; //%-5level
        patternLayout.ActivateOptions();

        RollingFileAppender infoRoller = new RollingFileAppender();

        infoRoller.AppendToFile = true;
        infoRoller.File = @"logs\";
        infoRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
        infoRoller.MaxSizeRollBackups = 3;
        infoRoller.Layout = patternLayout;
        infoRoller.DatePattern = @"IN\FO\_yyyy-MM-dd.\lo\g";
        infoRoller.StaticLogFileName = false;

        infoRoller.ActivateOptions();

        hierarchy.Root.AddAppender(infoRoller);

        MemoryAppender memory = new MemoryAppender();

        memory.ActivateOptions();
        hierarchy.Root.AddAppender(memory);

        hierarchy.Root.Level = Level.Debug;
        hierarchy.Configured = true;
    }

在另一个 class 中用于记录：

private readonly ILog log = LogManager.GetLogger("GENERAL-LOG");

和

Logger.Setup();
log.Debug("Configurazioni caricate con successo.");

代码有效。

现在，我做了这个更改以获得 2 个日志：

    public static void Setup()
    {

        Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
        hierarchy.Root.RemoveAllAppenders();

        PatternLayout patternLayout = new PatternLayout();

        patternLayout.ConversionPattern = "%date THREAD [%thread] %logger: %message%newline"; //%-5level
        patternLayout.ActivateOptions();

        RollingFileAppender infoRoller = new RollingFileAppender();

        infoRoller.AppendToFile = true;
        infoRoller.File = @"logs\";
        infoRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
        infoRoller.MaxSizeRollBackups = 3;
        infoRoller.Layout = patternLayout;
        infoRoller.DatePattern = @"IN\FO\_yyyy-MM-dd.\lo\g";
        infoRoller.StaticLogFileName = false;

        infoRoller.ActivateOptions();
        hierarchy.Root.AddAppender(infoRoller);

        //ADDED CODE
        RollingFileAppender errorRoller = new RollingFileAppender();

        errorRoller.AppendToFile = true;
        errorRoller.File = @"logs\";
        errorRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
        errorRoller.MaxSizeRollBackups = 3;
        errorRoller.Layout = patternLayout;
        errorRoller.DatePattern = @"ERROR_yyyy-MM-dd.\lo\g";
        errorRoller.StaticLogFileName = false;

        errorRoller.ActivateOptions();
        hierarchy.Root.AddAppender(errorRoller);

        MemoryAppender memory = new MemoryAppender();

        memory.ActivateOptions();
        hierarchy.Root.AddAppender(memory);

        hierarchy.Root.Level = Level.Debug;
        hierarchy.Configured = true;
    }

}

来自其他 class:

    private readonly ILog log = LogManager.GetLogger("GENERAL-LOG");
    private readonly ILog elog = LogManager.GetLogger("ERROR-LOG");

    Logger.Setup();
    log.Debug("prova scrittura in file1");
    elog.Error("prova errore scrittura in file2");

结果：两个日志文件都写入了两条消息。

请多多指教，万分感谢！

Answer 1

问题是您已将两个附加程序附加到 "root" 记录器。如果你想有两个记录器，那么你必须将它们附加到特定的记录器。

我已经评论了 hierarchy.Root.AddAppender(errorRoller); 和 hierarchy.Root.AddAppender(infoRoller); 因为不再需要它，因为附加程序附加到相关记录器而不是根。

找到下面的代码。在那里我将 log 和 elog 作为参数传递给方法并分别附加相关的附加程序。

   private static void Setup2(ILog infoLog, ILog elog)
    {
        Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
        hierarchy.Root.RemoveAllAppenders();

        PatternLayout patternLayout = new PatternLayout();

        patternLayout.ConversionPattern = "%date THREAD [%thread] %logger: %message%newline"; //%-5level
        patternLayout.ActivateOptions();

        RollingFileAppender infoRoller = new RollingFileAppender();

        infoRoller.AppendToFile = true;
        infoRoller.File = @"logs\";
        infoRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
        infoRoller.MaxSizeRollBackups = 3;
        infoRoller.Layout = patternLayout;
        infoRoller.DatePattern = @"IN\FO\_yyyy-MM-dd.\lo\g";
        infoRoller.StaticLogFileName = false;
        infoRoller.ActivateOptions();
        //   hierarchy.Root.AddAppender(infoRoller); //Not appended to the root logger anymore

        //ADDED CODE
        RollingFileAppender errorRoller = new RollingFileAppender();

        errorRoller.AppendToFile = true;
        errorRoller.File = @"logs\";
        errorRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
        errorRoller.MaxSizeRollBackups = 3;
        errorRoller.Layout = patternLayout;
        errorRoller.DatePattern = @"ERROR_yyyy-MM-dd.\lo\g";
        errorRoller.StaticLogFileName = false;
        errorRoller.ActivateOptions();
        //   hierarchy.Root.AddAppender(errorRoller); //Not appended to the root logger anymore

        MemoryAppender memory = new MemoryAppender();

        memory.ActivateOptions();
        hierarchy.Root.AddAppender(memory);
        hierarchy.Root.Level = Level.Debug;
        hierarchy.Configured = true;

        ILog log = infoLog;
        Logger logger = (Logger)log.Logger;
        logger.AddAppender(errorRoller);

        log = elog;
        logger = (Logger)log.Logger;
        logger.AddAppender(infoRoller);
    }

调用方法

    private readonly ILog log = LogManager.GetLogger("GENERAL-LOG");
    private readonly ILog elog = LogManager.GetLogger("ERROR-LOG");

    Logger.Setup2(log,elog);
    log.Debug("prova scrittura in file1");
    elog.Error("prova errore scrittura in file2");

Answer 2

请将与 Setup() 方法相关的代码块替换为以下代码块。

变化： 1. 删除"hierarchy.Root.AddAppender(infoRoller);" 并评论"hierarchy.Root.AddAppender(errorRoller);"。 2. 删除了 "MemoryAppender"，因为您的情况似乎不需要。

public static void Setup()
        {


            Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
            hierarchy.Root.RemoveAllAppenders();

            PatternLayout patternLayout = new PatternLayout();

            patternLayout.ConversionPattern = "%date THREAD [%thread] %logger: %message%newline"; //%-5level
            patternLayout.ActivateOptions();


            ILog log = LogManager.GetLogger("GENERAL-LOG");
            Logger l = (Logger)log.Logger;

            RollingFileAppender infoRoller = new RollingFileAppender();

            infoRoller.AppendToFile = true;
            infoRoller.File = @"logs\";
            infoRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
            infoRoller.MaxSizeRollBackups = 3;
            infoRoller.Layout = patternLayout;
            infoRoller.DatePattern = @"IN\FO\_yyyy-MM-dd.\lo\g";
            infoRoller.StaticLogFileName = false;
            infoRoller.ActivateOptions();

            l.AddAppender(infoRoller);


            //ADDED CODE

            ILog elog = LogManager.GetLogger("ERROR-LOG");
            Logger el = (Logger)elog.Logger;


            RollingFileAppender errorRoller = new RollingFileAppender();

            errorRoller.AppendToFile = true;
            errorRoller.File = @"logs\";
            errorRoller.RollingStyle = RollingFileAppender.RollingMode.Date;
            errorRoller.MaxSizeRollBackups = 3;
            errorRoller.Layout = patternLayout;
            errorRoller.DatePattern = @"ERROR_yyyy-MM-dd.\lo\g";
            errorRoller.StaticLogFileName = false;

            errorRoller.ActivateOptions();

            el.AddAppender(errorRoller);
            //hierarchy.Root.AddAppender(errorRoller);

            MemoryAppender memory = new MemoryAppender();

            memory.ActivateOptions();
            hierarchy.Root.AddAppender(memory);
            hierarchy.Configured = true;
        }

希望对您有所帮助。

谢谢

log4net 设置两个文件的日志记录与 c# 代码的不同级别日志记录

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