C#使用Log4Net記錄日誌

下載Log4Net

下載地址：http://logging.apache.org/log4net/download_log4net.cgi

在項目中引用Log4Net.DLL

配置Log4Net

配置文件內容

      <?xml version="1.0"?>
  <configuration>
    <configSections>
      <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
    </configSections>
    <log4net>
      <!--定義輸出到文件中-->
      <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
        <!--定義文件存放位置-->
        <file value="log\\"/>
        <appendToFile value="true"/>
        <rollingStyle value="Date"/>
        <datePattern value="yyyy\\yyyyMM\\yyyyMMdd'.txt'"/>
        <staticLogFileName value="false"/>
        <param name="MaxSizeRollBackups" value="100"/>
        <layout type="log4net.Layout.PatternLayout">
          <!--每條日誌末尾的文字說明-->
          <!--輸出格式-->
          <!--樣例：2008-03-26 13:42:32,111 [10] INFO  Log4NetDemo.MainClass [(null)] - info-->
          <conversionPattern value="%newline %n記錄時間：%date %n線程ID:[%thread] %n日誌級別：  %-5level %n出錯類：%logger property: [%property{NDC}] - %n錯誤描述：%message%newline %n"/>
        </layout>
      </appender>
      <root>
        <level value="ERROR"/>
        <!--文件形式記錄日誌-->
        <appender-ref ref="RollingLogFileAppender"/>
      </root>
    </log4net>
  </configuration>

輔助類：

    public static class Log4Helper
    {
        private static readonly ILog logger;

        static Log4Helper()
        {
            log4net.Config.XmlConfigurator.Configure();
            logger = LogManager.GetLogger("RollingLogFileAppender");
        }
        /// <summary>
        ///
        /// </summary>
        public static ILog Logger{get { return logger; }}
    }

使用：

  Log4Helper.Logger.Error("");