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

<?xml version="1.0" encoding="utf-8" ?><configuration><configSections><section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" /></configSections><log4net><root></root><logger name="OneCardRequest"><level value="INFO" /><appender-ref ref="rollingRequestFile" /></logger><logger name="OneCardResult"><level value="INFO" /><appender-ref ref="rollingResultFile" /></logger><logger name="OneCardException"><level value="ERROR" /><appender-ref ref="rollingExceptionFile" /></logger><logger name="InfoLog"><level value="ALL" /><appender-ref ref="rollingInfoFile" /></logger><appender name="rollingRequestFile" type="log4net.Appender.RollingFileAppender,log4net" ><param name="File" type="" value="Log/Request/" /><param name="AppendToFile" value="true" /><param name="RollingStyle" value="Date" /><param name="DatePattern" value="yyyyMMdd" /><param name="StaticLogFileName" value="false" /><layout type="log4net.Layout.PatternLayout,log4net"><param name="ConversionPattern" value="%n[%d] %c %n%m%n%n" /><param name="Header" value="-----------BEGIN-----------" /><param name="Footer" value="------------END------------" /></layout></appender><appender name="rollingResultFile" type="log4net.Appender.RollingFileAppender,log4net" ><param name="File" type="" value="Log/Result/" /><param name="AppendToFile" value="true" /><param name="RollingStyle" value="Date" /><param name="DatePattern" value="yyyyMMdd" /><param name="StaticLogFileName" value="false" /><layout type="log4net.Layout.PatternLayout,log4net"><param name="ConversionPattern" value="%n[%d] %c %n%m%n%n" /><param name="Header" value="-----------BEGIN-----------" /><param name="Footer" value="------------END------------" /></layout></appender><appender name="rollingExceptionFile" type="log4net.Appender.RollingFileAppender,log4net" ><param name="File" type="" value="Log/Exception/" /><param name="AppendToFile" value="true" /><param name="RollingStyle" value="Date" /><param name="DatePattern" value="yyyyMMdd" /><param name="StaticLogFileName" value="false" /><layout type="log4net.Layout.PatternLayout,log4net"><param name="ConversionPattern" value="%n[%d] %c %n%m%n%n" /><param name="Header" value="-----------BEGIN-----------" /><param name="Footer" value="------------END------------" /></layout></appender><appender name="rollingInfoFile" type="log4net.Appender.RollingFileAppender,log4net" ><param name="File" type="" value="Log/Info/" /><param name="AppendToFile" value="true" /><param name="RollingStyle" value="Date" /><param name="DatePattern" value="yyyyMMdd" /><param name="StaticLogFileName" value="false" /><layout type="log4net.Layout.PatternLayout,log4net"><param name="ConversionPattern" value="%n[%d] %c %n%m%n%n" /><param name="Header" value="-----------BEGIN-----------" /><param name="Footer" value="------------END------------" /></layout></appender></log4net></configuration>

    public class log4netHelper
{/// <summary>/// 追加一条一卡通处理异常日志信息/// </summary>/// <param name="id">请求ID</param>/// <param name="ex">异常</param>/// <param name="attachMessage">附加信息</param>        public static void Exception(string id, Exception ex, string attachMessage)
{
log4net.ILog log = log4net.LogManager.GetLogger("OneCardException");if (log.IsErrorEnabled)
{string strMessage = string.Format("RequestID:{0}\r\nMesssage:{1}\r\nStackTrace:{2}\r\nAttachMessage:{3}", id, ex.Message, ex.StackTrace, attachMessage);
log.Error(strMessage);
}
log = null;
}/// <summary>/// 追加一条一卡通请求日志信息/// </summary>/// <param name="id">请求ID</param>/// <param name="ip">请求的IP地址</param>/// <param name="datetime">时间</param>/// <param name="strParam">请求时传入的参数</param>        public static void RequestLog(string id, string ip, string datetime, string strParam)
{
log4net.ILog log = log4net.LogManager.GetLogger("OneCardRequest");if (log.IsInfoEnabled)
{string strMessage = string.Format("RequestID:{0}\r\nIP:{1}\r\nDateTime:{2}\r\nParam:{3}", id, ip, datetime, strParam);
log.Info(strMessage);
}
log = null;
}/// <summary>/// 追加一条一卡通处理结果日志/// </summary>/// <param name="id">请求ID</param>/// <param name="datetime">时间</param>/// <param name="strResult">处理结果</param>        public static void ResultLog(string id, string datetime, string strResult)
{
log4net.ILog log = log4net.LogManager.GetLogger("OneCardResult");if (log.IsInfoEnabled)
{string strMessage = string.Format("RequestID:{0}\r\nDateTime:{1}\r\nParam:{2}", id, datetime, strResult);
log.Info(strMessage);
}
log = null;
}/// <summary>/// 追加一条普通的日志信息/// </summary>/// <param name="message">日志内容</param>        public static void Info(string message)
{
log4net.ILog log = log4net.LogManager.GetLogger("InfoLog");if (log.IsInfoEnabled)
{
log.Info(message);
}
log = null;
}

}本文转自齐师傅博客园博客，原文链接：http://www.cnblogs.com/youring2/archive/2011/04/27/2030424.html，如需转载请自行联系原作者