C#中四步轻松使用log4net记录本地日志的方法

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在这里，记录我在项目中使用log4net记录本地日志的步骤。在不会之前感觉很难，很神秘，一旦会了之后其实没那么难。其实所有的事情都是一样的，下面我就分享一下我使用log4Net的经验。

第一步：首先从Visual Studio中的Nuget包管理中搜索下载 Log4Net dll文件如下图：

选择安装的项目(哪个类库中需要记录日志就勾选上)

第二步：打开配置文件 WinFrom就是 App.config Web就是 web.config 将以下配置信息加入

<configSections>
 <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>
 <logger name="SysRFLogger">
 <level value="DEBUG" />
 <appender-ref ref="SysRFAppender" />
 </logger>
 <logger name="DebugRFLogger">
 <level value="DEBUG" />
 <appender-ref ref="DebugAppender" />
 </logger>
 <logger name="MsgLogger">
 <level value="DEBUG" />
 <appender-ref ref="MsgAppender" />
 </logger>
 <logger name="OperInfoLogger">
 <level value="DEBUG" />
 <appender-ref ref="OperInfoAppender" />
 </logger>
 <appender name="SysRFAppender" type="log4net.Appender.RollingFileAppender">
 <file value="Logs\syslog.log" />
 <appendToFile value="true" />
 <rollingStyle value="Date" />
 <preserveLogFileNameExtension value="true" />
 <datePattern value="yyyyMMdd" />
 <layout type="log4net.Layout.PatternLayout">
  <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
 </layout>
 </appender>
 <appender name="DebugAppender" type="log4net.Appender.RollingFileAppender">
 <file value="Logs\sysDebuglog.log" />
 <appendToFile value="true" />
 <rollingStyle value="Date" />
 <preserveLogFileNameExtension value="true" />
 <datePattern value="yyyyMMdd" />
 <layout type="log4net.Layout.PatternLayout">
  <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
 </layout>
 </appender>
 <appender name="MsgAppender" type="log4net.Appender.RollingFileAppender">
 <file value="Logs\Messagelog.log" />
 <appendToFile value="true" />
 <rollingStyle value="Date" />
 <preserveLogFileNameExtension value="true" />
 <datePattern value="yyyyMMdd" />
 <layout type="log4net.Layout.PatternLayout">
  <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
 </layout>
 </appender>
 <appender name="OperInfoAppender" type="log4net.Appender.AdoNetAppender">
 <bufferSize value="1" />
 <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=4.0.30319.18020, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
 <commandText value="INSERT INTO LOG_USEROPERLOG ([ID],[Date],[User],[Flag],[OperInfo],[OperFlag],[OperResult],[Message]) VALUES (@Id,@log_date, @user, @flag, @operinfo,@operflag, @operresult, @message)" />
 <parameter>
  <parameterName value="@Id" />
  <dbType value="String" />
  <size value="36" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{ID}" />
  </layout>
 </parameter>
 <parameter>
  <parameterName value="@log_date" />
  <dbType value="DateTime" />
  <layout type="log4net.Layout.RawTimeStampLayout" />
 </parameter>
 <parameter>
  <parameterName value="@user" />
  <dbType value="String" />
  <size value="64" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{User}" />
  </layout>
 </parameter>
 <parameter>
  <parameterName value="@flag" />
  <dbType value="Int32" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{Flag}" />
  </layout>
 </parameter>
 <parameter>
  <parameterName value="@operinfo" />
  <dbType value="String" />
  <size value="255" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{OperInfo}" />
  </layout>
 </parameter>
 <parameter>
  <parameterName value="@operflag" />
  <dbType value="String" />
  <size value="32" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{OperFlag}" />
  </layout>
 </parameter>
 <parameter>
  <parameterName value="@operresult" />
  <dbType value="String" />
  <size value="255" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{OperResult}" />
  </layout>
 </parameter>
 <parameter>
  <parameterName value="@message" />
  <dbType value="String" />
  <size value="4000" />
  <layout type="NT.MultithreadingTaskService.Log.Layout.UserOperLayOut,NT.MultithreadingTaskService.Log">
  <param name="ConversionPattern" value="%property{Message}" />
  </layout>
 </parameter>
 </appender>
 <root>
 <level value="DEBUG" />
 <appender-ref ref="SysRFAppender" />
 </root>
</log4net>

以上节点具体参数这里不做解释，可以上网查询帮助文档

注意：这两段XML要放在configuration 节点下靠前