log4net配置

参考文章：

http://blog.csdn.net/yongping8204/article/details/9773161

1.添加引用log4net

2.创建log4net.config

<?xml version="1.0"?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
  </configSections>
  <!--日志-->
  <log4net>
    <logger name="logerror">
      <level value="ERROR" />
      <appender-ref ref="ErrorAppender" />
    </logger>
    <logger name="loginfo">
      <level value="INFO" />
      <appender-ref ref="InfoAppender" />
    </logger>
    <logger name="logconsole">
      <level value="INFO" />
      <appender-ref ref="ConsoleAppender" />
    </logger>
    <appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="LogsErrorLog.log" />
      <param name="AppendToFile" value="true" />
      <param name="MaxSizeRollBackups" value="100" />
      <param name="MaximumFileSize" value="1MB" />
      <param name="RollingStyle" value="Size" />
      <param name="StaticLogFileName" value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%-5p %d [%c] %m%n" />
      </layout>
    </appender>
    <appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="LogsInfoLog.log" />
      <param name="AppendToFile" value="true" />
      <param name="MaxSizeRollBackups" value="100" />
      <param name="MaximumFileSize" value="1MB" />
      <param name="RollingStyle" value="Size" />
      <param name="StaticLogFileName" value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%-5p %d [%c] %m%n" />
      </layout>
    </appender>

    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%d [%t] %-5p %m%n" />
      </layout>
    </appender>
  </log4net>
</configuration>

我创建的是一个web工程

方式1：找到Properties/AssemblyInfo.cs

 

[assembly: log4net.Config.XmlConfigurator(Watch=true)]

然后在web.config内增加节点，

 <appSettings>
    <add key="log4net.Config" value="log4net.config"/>
    <add key="log4net.Config.Watch" value="True"/>
  </appSettings>

 输出日志的代码:

log4net.ILog loginfo = log4net.LogManager.GetLogger("loginfo");//对应log4net.config内的节点
loginfo.Info("test test test");

方式2：无需上面的配置：

在Global.asax的Application_Start初始化

var logCfg = new FileInfo(AppDomain.CurrentDomain.BaseDirectory + "log4net.config");
XmlConfigurator.ConfigureAndWatch(logCfg);//监听配置文件的变化

然后在其他地方就可以写日志了。

log4net.ILog loginfo = log4net.LogManager.GetLogger("loginfo");
loginfo.Info("test test test********************************");

 浅谈Log4net在项目中如何记录日志