如何使用log4net在代码中配置NHibernate日志记录，而不是在xml文件中？ [英] How to configure NHibernate logging with log4net in code, not in xml file?

问题描述

依赖此文档 http：// nhibernate.info/doc/howto/various/configure-log4net-for-use-with-nhibernate.html ，通过使用XML配置文件通过log4net配置NHibernate日志是很容易的。

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解决方案

但是我需要在C＃代码中做同样的事情。 a href =http://stackoverflow.com/a/1776025/634872>如何以编程方式从头开始配置log4net（无配置）。但是，由于该答案只为根记录器提供了一个解决方案，我稍微扩展了一下。

  ///< summary> ; 
 ///测试Log4Net 
 ///< / summary> 
 public static void TestLog4Net（）
 {
 //配置log4net 
 ConfigureLog4net（）; 
 ILog log = LogManager.GetLogger（foo）; 
 log.Debug（这不应该出现在日志文件！ 
 
 ILog log2 = LogManager.GetLogger（NHibernate.SQL）; 
 log2.Debug（这应该只出现在NH日志文件！ 
 
 ILog log3 = LogManager.GetLogger（MyProgram）; 
 log3.Debug（这应该出现在主程序日志文件！ 
} 
 
 ///< summary> 
 ///配置log4net 
 ///< / summary> 
 public static void ConfigureLog4net（）
 {
层次结构=（层次）LogManager.GetRepository（）; 
 //删除任何其他附加器
 hierarchy.Root.RemoveAllAppenders（）; 
 //定义根的一些基本设置
 Logger rootLogger = hierarchy.Root; 
 rootLogger.Level = Level.Debug; 
 
 //声明一个RollingFileAppender，每个文件5MB，最大。 10个文件
 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）; 
 //这会激活FileAppender（没有它，不会写入任何内容）
 appenderNH.ActivateOptions（）; 
 
 //这是必需的，所以我们可以通过使用
 // LogManager.GetLogger（NHibernate.SQL）访问Logger，它可以被NHibernate使用
 Logger loggerNH = hierarchy.GetLogger（NHibernate.SQL）as Logger; 
 loggerNH.Level = Level.Debug; 
 loggerNH.AddAppender（appenderNH）; 
 
 //声明RollingFileAppender，每个文件5MB，最大。 10个文件
 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]％-5级别％logger [％ndc]  - ％message％newline 
 //这会激活FileAppender（没有它，什么都不会写）
 appenderMain.ActivateOptions（）; 
 
 //这是必需的，所以我们可以通过使用
 // LogManager.GetLogger（MyProgram）来访问Logger 
 Logger logger = hierarchy.GetLogger（MyProgram ）as Logger; 
 logger.Level = Level.Debug; 
 logger.AddAppender（appenderMain）; 
 
 //这是必需的告诉log4net我们完成了
 //与配置，所以日志可以启动
 hierarchy.Configured = true; 
} 
  

Relying on this doc http://nhibernate.info/doc/howto/various/configure-log4net-for-use-with-nhibernate.html it is quite easy to configure NHibernate logging through log4net by using XML config files.

But i need to do the same in C# code.

解决方案

This answer is based on How to configure log4net programmatically from scratch (no config). However, since that answer only provides a solution for the root logger, I expanded that a little.

/// <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;
}

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