Log4net的简单使用

  <configSections>
    <!-- Add log4net config section-->
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,     log4net" />
  </configSections>

 <log4net debug="true">
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="logs\log.txt" />//文件保存的位置
      <appendToFile value="true" />
      <rollingStyle value="Size" />
      <maxSizeRollBackups value="10" />
      <maximumFileSize value="10MB" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%-5p %d %5rms %-22.22c{1} %-18.18M - %m%n" />
      </layout>
    </appender>
    <root>
      <level value="DEBUG" />
      <appender-ref ref="RollingLogFileAppender" />
    </root>
  </log4net>

public ActionResult Index()
        {
            ILog log = log4net.LogManager.GetLogger("RollingLogFileAppender");
            log.Error("有了 有了 哈哈 有了");
            return View();
        }