log4net配置文件

log4net可把log分别输出到不同的文件中

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  
  <log4net>
    <logger name="ABCLogger">
      <level value="ALL" />
      <appender-ref ref="ABCLogFileAppender" />
    </logger>

    <logger name="XYZLogger">
      <level value="ALL" />
      <appender-ref ref="XYZLogFileAppender" />
    </logger>

   <appender name="ABCLogFileAppender" type="log4net.Appender.FileAppender">
      <param name="File" value="Log\ABCLog.log" />
      <param name="AppendToFile" value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="Header" value="" />
        <param name="Footer" value="" />
        <param name="ConversionPattern" value="%d [%t] %-5p %m%n" />
      </layout>
    </appender>
    <appender name="XYZLogFileAppender" type="log4net.Appender.FileAppender">
      <param name="File" value="Log\XYZLog.log" />
      <param name="AppendToFile" value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="Header" value="" />
        <param name="Footer" value="" />
        <param name="ConversionPattern" value="%d [%t] %-5p %m%n" />
      </layout>
    </appender>

  </log4net>
</configuration>

注意<configSections>必须放在第一个节点.

需要输出到db等其他地方的时候，只需追加不同的appender即可，

调用的时候

public enum ELogLevel
    {
        DEBUG = 1,
        ERROR,
        FATAL,
        INFO,
        WARN
    }

    public static class CLogger
    {
        #region Members

        private static ILog GetLogger(string logName)
        {
            ILog logger = null;
            if(logName.Equals(GlobalConst.ABCLogName))
                logger = LogManager.GetLogger("ABCLogger");
            if (logName.Equals(GlobalConst.XYZLogName))
                logger = LogManager.GetLogger("XYZLogger");

            return logger;
        }
        #endregion

        #region Constructors

        static CLogger()
        {
            XmlConfigurator.Configure();
        }
        #endregion

        #region Methods

        public static void WriteLog(string logName, ELogLevel logLevel, String log)
        {
            ILog logger = GetLogger(logName);
            if (logLevel.Equals(ELogLevel.DEBUG))
            {
                logger.Debug(log);
            }
            else if (logLevel.Equals(ELogLevel.ERROR))
            {
                logger.Error(log);
            }
            else if (logLevel.Equals(ELogLevel.FATAL))
            {
                logger.Fatal(log);
            }
            else if (logLevel.Equals(ELogLevel.INFO))
            {
                logger.Info(log);
            }
            else if (logLevel.Equals(ELogLevel.WARN))
            {
                logger.Warn(log);
            }
        }
        #endregion
    }