C#中四步轻松使用log4net记录本地日志的方法

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

第三步： 打开项目AssemblyInfo.cs文件（UI层）

加入：[assembly: log4net.Config.XmlConfigurator(ConfigFile = "web.config", Watch = true)]

第四步： 在需要记录日志的cs文件中初始化： private ILog _log = LogManager.GetLogger("TicketFace");

一般常用以下几个方法：

_log.Error();
_log.Debug();
_log.Info();

最后运行项目然后在以上配置文件中找到路径去文件夹里看看就生成了日志文件了。

注意：这里日志是以天为单位记录 如下：

以上这篇C#中四步轻松使用log4net记录本地日志的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。

原文链接：http://HdhCmsTestcnblogs测试数据/wendj/archive/2017/11/22/7880582.html

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