log4net 写入日志到不一样的位置

某些业务须要根据不一样的功能将日志记录到不一样的位置，以便于区分。

<?xml version="1.0" encoding="utf-8" ?> <log4net> <appender name="Console" type="log4net.Appender.ConsoleAppender"> <layout type="log4net.Layout.PatternLayout"> <!-- Pattern to output the caller's file name and line number --> <conversionPattern value="%5level [%thread] (%file:%line) - %date - %message%newline" /> </layout> </appender> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <file type="log4net.Util.PatternString" value="Logs\\Common\\%date{yyyy-MM-dd}.log" /> <appendToFile value="true" /> <rollingStyle value="Composite" /> <datePattern value="yyyyMMdd" /> <maxSizeRollBackups value="10" /> <maximumFileSize value="1KB" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" /> </layout> </appender> <appender name="EventLoggerAppender" type="log4net.Appender.RollingFileAppender"> <file type="log4net.Util.PatternString" value="Logs\\Events\\%date{yyyy-MM-dd}.log" /> <appendToFile value="true" /> <rollingStyle value="Composite" /> <datePattern value="yyyyMMdd" /> <maxSizeRollBackups value="10" /> <maximumFileSize value="1KB" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" /> </layout> </appender> <logger name="FileLogger"> <level value="ALL" /> <appender-ref ref="RollingLogFileAppender" /> </logger> <logger name="EventLogger"> <level value="ALL" /> <appender-ref ref="EventLoggerAppender" /> </logger> <!-- <root> --> <!-- <level value="DEBUG" /> --> <!-- <appender-ref ref="RollingLogFileAppender" /> --> <!-- <appender-ref ref="Console" /> --> <!-- </root> --> </log4net>

日志工具类（这里只是简单的封装）：

public static class LogHelper { private static readonly ILog logger = LogManager.GetLogger("FileLogger"); private static readonly ILog eventLogger = LogManager.GetLogger("EventLogger"); static LogHelper() { log4net.Config.XmlConfigurator.Configure(new FileInfo(HttpContext.Current.Server.MapPath("~/log4net.config"))); } public static void Error(string errMessage) { logger.Error(errMessage); } public static void LogEvent(string errMessage) { eventLogger.Error(errMessage); } }

public class HomeController : Controller { public ActionResult Index() { LogHelper.Error("出错啦"); LogHelper.LogEvent("fafdsafdsaff"); ViewBag.Title = "Home Page"; return View(); } }

浏览页面后，能够看到日志目录以下：

 

 

参考资料：https://stackoverflow.com/questions/11930381/log4net-multiple-appenders-writing-to-event-viewer