有引用log4net.dll
有配置文件,Web.config或log4net.config
有section節
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
<sectionGroup name="system.web">
<section name="logService" type="OilDigital.CGGL.BLL.LogServiceSection, OilDigital.CGGL.BLL.Common" allowDefinition="MachineToApplication" restartOnExternalChanges="true"/>
有system.web節,同時確保logProviderWithLog4Net中的enabled爲true
<system.web>
<logService defaultProvider="logProviderWithLog4Net">
<providers>
<add name="logProviderWithLog4Net" type="OilDigital.CGGL.BLL.Log.LogProviderWithLog4Net,OilDigital.CGGL.BLL.Log" enabled="true" loggingUserName="false" loggerName="OperationLogger"/>
</providers>
</logService>
有log4net節
<log4net>
<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="Logs\\opeartions-"/>
<appendToFile value="true"/>
<rollingStyle value="Date"/>
<datePattern value="yyyy-MM-dd".log""/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="false"/>
<lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c %m%n"/>
</layout>
</appender>
<logger name="OperationLogger">
<level value="INFO"/>
<appender-ref ref="LogFileAppender"/>
</logger>
</log4net>
Global.asax的Application_Start方法中有初始化
//初始化log4net對象
log4net.Config.XmlConfigurator.Configure();