如何配置NHibernate日志与代码中的log4net，而不是xml文件？

Question

依靠这个文档http://nhibernate.info/doc/howto/various/configure-log4net-for-use-with-nhibernate.html通过使用XML配置文件来配置NHibernate通过log4net进行日志记录是非常容易的。

但我需要在C＃代码中做同样的事情。

Answer 1

这个答案是基于How to configure log4net programmatically from scratch (no config)。但是，由于该答案仅为根记录器提供了解决方案，因此我稍微扩展了这一点。

/// <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; 
} 

Answer 2

您可以通过编程方式here和here找到关于配置log4net的信息。您将需要直接引用项目中的log4net程序集，然后编写必要的代码，以便在应用程序启动时尽早执行它（尽可能早）。然而

的问题是，为什么你想做到这一点...