1.通过代码进行配置

1.1代码

​http://stackoverflow.com/questions/16336917/can-you-configure-log4net-in-code-instead-of-using-a-config-file​



public class Logger
{
public static void Setup()
{
Hierarchy hierarchy = (Hierarchy) LogManager.GetRepository();

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

RollingFileAppender roller = new RollingFileAppender();
roller.AppendToFile = false;
roller.File = @"Logs\EventLog.txt";
roller.Layout = patternLayout;
roller.MaxSizeRollBackups = 5;
roller.MaximumFileSize = "1GB";
roller.RollingStyle = RollingFileAppender.RollingMode.Size;
roller.StaticLogFileName = true;
roller.ActivateOptions();
hierarchy.Root.AddAppender(roller);

MemoryAppender memory = new MemoryAppender();
memory.ActivateOptions();
hierarchy.Root.AddAppender(memory);

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


 1.2代码调用

1.2.1 在程序启动的时候,调用  Logger.Setup();

1.2.2 输出日志



private static void Application_ThreadException(object sender,ThreadExceptionEventArgs e)
{
var logger = LogManager.GetLogger(sender.GetType());
logger.Error("Error", e.Exception);
MessageBox.Show(e.Exception.Message);
}


 

2.通过配置文件进行配置 

2.1配置文件内容



<configSections>
<section name ="log4net" type ="System.Configuration.IgnoreSectionHandler"/>
</configSections>
<log4net>
<appender name="errorAppender" type="log4net.Appender.RollingFileAppender">
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="ERROR" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<File value="Logs\err.log" />
<PreserveLogFileNameExtension value="true" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="yyyyMMdd" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<appender name="infoAppender" type="log4net.Appender.RollingFileAppender">
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="INFO" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<File value="Logs\info.log" />
<PreserveLogFileNameExtension value="true" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="yyyyMMdd" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<appender name="debugAppender" type="log4net.Appender.RollingFileAppender">
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="DEBUG" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<File value="Logs\debug.log" />
<PreserveLogFileNameExtension value="true" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="yyyyMMdd" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<appender name="perfAppender" type="log4net.Appender.RollingFileAppender">
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="INFO" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<File value="Logs\perf.log" />
<PreserveLogFileNameExtension value="true" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="yyyyMMdd" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %logger - %message%newline" />
</layout>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="errorAppender" />
<appender-ref ref="infoAppender" />
<appender-ref ref="debugAppender" />
</root>
<logger name="Performance" additivity="false">
<level value="ALL" />
<appender-ref ref="perfAppender" />
</logger>
</log4net>


 

 

需要注意

XmlConfigurator.Configure();这个不带参数的用法,需要研究一下