Log4Net配置日志级别

Log4Net configuring log level

如何使Log4net仅记录信息级别的日志？那有可能吗？您只能设置一个阈值吗？

这就是我所拥有的，并且它记录了Info和以上的信息，正如我所期望的那样。我有什么办法可以使其仅记录信息？

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在appender的定义内，我相信您可以执行以下操作：

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使用threshold。

例如：

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在此示例中，所有INFO及其以上版本都发送到控制台，所有WARN都发送到文件，而ERRORs发送到事件日志。

是。这是通过追加程序上的过滤器完成的。

这是我通常使用的附加程序配置，仅限于INFO级别。

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如果要动态执行，请尝试以下操作：

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using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using log4net.Config;
using NUnit.Framework;

namespace ExampleConsoleApplication
{
enum DebugLevel : int
{
Fatal_Msgs = 0 ,
Fatal_Error_Msgs = 1 ,
Fatal_Error_Warn_Msgs = 2 ,
Fatal_Error_Warn_Info_Msgs = 3 ,
Fatal_Error_Warn_Info_Debug_Msgs = 4
}

class TestClass
{
private static readonly ILog logger = LogManager.GetLogger(typeof(TestClass));

static void Main ( string[] args )
{
TestClass objTestClass = new TestClass ();

Console.WriteLine (" START" );

int shouldLog = 4; //CHANGE THIS FROM 0 TO 4 integer to check the functionality of the example
//0 -- prints only FATAL messages
//1 -- prints FATAL and ERROR messages
//2 -- prints FATAL , ERROR and WARN messages
//3 -- prints FATAL , ERROR , WARN and INFO messages
//4 -- prints FATAL , ERROR , WARN , INFO and DEBUG messages

string srtLogLevel = String.Empty;
switch (shouldLog)
{
case (int)DebugLevel.Fatal_Msgs :
srtLogLevel ="FATAL";
break;
case (int)DebugLevel.Fatal_Error_Msgs:
srtLogLevel ="ERROR";
break;
case (int)DebugLevel.Fatal_Error_Warn_Msgs :
srtLogLevel ="WARN";
break;
case (int)DebugLevel.Fatal_Error_Warn_Info_Msgs :
srtLogLevel ="INFO";
break;
case (int)DebugLevel.Fatal_Error_Warn_Info_Debug_Msgs :
srtLogLevel ="DEBUG" ;
break ;
default:
srtLogLevel ="FATAL";
break;
}

objTestClass.SetLogingLevel ( srtLogLevel );

objTestClass.LogSomething ();

Console.WriteLine (" END HIT A KEY TO EXIT" );
Console.ReadLine ();
} //eof method

/// <summary>
/// Activates debug level
/// </summary>
/// <sourceurl>http://geekswithblogs.net/rakker/archive/2007/08/22/114900.aspx</sourceurl>
private void SetLogingLevel ( string strLogLevel )
{
string strChecker ="WARN_INFO_DEBUG_ERROR_FATAL" ;

if (String.IsNullOrEmpty ( strLogLevel ) == true || strChecker.Contains ( strLogLevel ) == false)
throw new Exception (" The strLogLevel should be set to WARN , INFO , DEBUG ," );

log4net.Repository.ILoggerRepository[] repositories = log4net.LogManager.GetAllRepositories ();

//Configure all loggers to be at the debug level.
foreach (log4net.Repository.ILoggerRepository repository in repositories)
{
repository.Threshold = repository.LevelMap[ strLogLevel ];
log4net.Repository.Hierarchy.Hierarchy hier = (log4net.Repository.Hierarchy.Hierarchy)repository;
log4net.Core.ILogger[] loggers = hier.GetCurrentLoggers ();
foreach (log4net.Core.ILogger logger in loggers)
{
( (log4net.Repository.Hierarchy.Logger)logger ).Level = hier.LevelMap[ strLogLevel ];
}
}

//Configure the root logger.
log4net.Repository.Hierarchy.Hierarchy h = (log4net.Repository.Hierarchy.Hierarchy)log4net.LogManager.GetRepository ();
log4net.Repository.Hierarchy.Logger rootLogger = h.Root;
rootLogger.Level = h.LevelMap[ strLogLevel ];
}

private void LogSomething ()
{
#region LoggerUsage
DOMConfigurator.Configure (); //tis configures the logger
logger.Debug ("Here is a debug log." );
logger.Info ("... and an Info log." );
logger.Warn ("... and a warning." );
logger.Error ("... and an error." );
logger.Fatal ("... and a fatal error." );
#endregion LoggerUsage

}
} //eof class
} //eof namespace

应用程序配置：

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<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net"
type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>

<param name="File" value="LogTest2.txt" />
<param name="AppendToFile" value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="Header" value="[Header] \
\
" />
<param name="Footer" value="[Footer] \
\
" />
<param name="ConversionPattern" value="%d [%t] %-5p %c %m%n" />
</layout>
</appender>

<mapping>
<level value="ERROR" />
<foreColor value="White" />
<backColor value="Red, HighIntensity" />
</mapping>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
</layout>
</appender>

<connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.2.10.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<connectionString value="data source=ysg;initial catalog=DBGA_DEV;integrated security=true;persist security info=True;" />
<commandText value="INSERT INTO [DBGA_DEV].[ga].[tb_Data_Log] ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)" />

<parameter>
<parameterName value="@log_date" />
<dbType value="DateTime" />
<layout type="log4net.Layout.PatternLayout" value="%date{yyyy'-'MM'-'dd HH':'mm':'ss'.'fff}" />
</parameter>
<parameter>
<parameterName value="@thread" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout" value="%thread" />
</parameter>
<parameter>
<parameterName value="@log_level" />
<dbType value="String" />
<size value="50" />
<layout type="log4net.Layout.PatternLayout" value="%level" />
</parameter>
<parameter>
<parameterName value="@logger" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout" value="%logger" />
</parameter>
<parameter>
<parameterName value="@message" />
<dbType value="String" />
<size value="4000" />
<layout type="log4net.Layout.PatternLayout" value="%messag2e" />
</parameter>
</appender>
<root>
<level value="INFO" />

</root>
</log4net>
</configuration>

csproj文件中的引用：

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<Reference Include="log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=1b44e1d426115821, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\\..\\..\\Log4Net\\log4net-1.2.10\\bin\
et\\2.0\
elease\\log4net.dll</HintPath>
</Reference>
<Reference Include="nunit.framework, Version=2.4.8.0, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL" />

您可以使用log4net.Filter.LevelMatchFilter。
其他选项可以在找到
log4net教程-过滤器

在您的appender部分中添加

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匹配时默认接受为true，因此您可以将其保留，但是如果将其设置为false，则可以过滤出log4net过滤器