Log4Net使用与配置

===C/S配置===

1.项目中引用log4net.dll

2.在项目的Properties下的AssemblyInfo.cs末尾添加

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

3.在app.config中添加以下节内容

　 <configSections>

      <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />

    </configSections>

 <log4net>

    <root>

      <level value="ALL" />

      <appender-ref ref="SysAppender" />

    </root>

    <logger name="Test">

      <level value="DEBUG" />

      <appender-ref ref="SysAppender" />

    </logger>

　 <!-- 配置模板节 由logger节调用name名称 -->

    <appender name="rollingFile" type="log4net.Appender.RollingFileAppender,log4net" >

      <param name="File" type="" value="e:\\log" /><!-- 日志文件路径 -->
      <param name="AppendToFile" value="true" />

　　<!--<param name="MaxSizeRollBackups" value="12"/>--><!-- 切割最多文件数 -->    

　　<!--<param name="MaximumFileSize" value="500KB"/>--><!-- 每个文件的大小 -->

      <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="[%d][%t] %c [%x]%newline%m%newline" /><!-- 日志行配置 -->

      </layout>

    </appender>

    <appender name="SysAppender" type="log4net.Appender.RollingFileAppender,log4net" >

      <param name="File" value="logs\" />

      <param name="AppendToFile" value="true" />

      <param name="RollingStyle" value="Date" />

      <param name="DatePattern" value=""Logs_"yyyyMMdd".txt"" />

      <param name="StaticLogFileName" value="false" />

      <layout type="log4net.Layout.PatternLayout,log4net">

        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />        

      </layout>

    </appender>

    <appender name="consoleApp" type="log4net.Appender.ConsoleAppender,log4net">

      <layout type="log4net.Layout.PatternLayout,log4net">

        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />

      </layout>

    </appender>

  </log4net>

4.添加个调用类

class LogBLL

    {

        public static void debug(string message)

        {

            object o = ConfigurationSettings.GetConfig("log4net");

            log4net.Config.DOMConfigurator.Configure(o as System.Xml.XmlElement);

            log4net.ILog log = log4net.LogManager.GetLogger("WebLogger");

            if (log.IsDebugEnabled)

            {

                log.Debug(message);

            }

            log = null;

        }

        public static void error(string message)

        {

            object o = ConfigurationSettings.GetConfig("log4net");

            log4net.Config.DOMConfigurator.Configure(o as System.Xml.XmlElement);

            log4net.ILog log = log4net.LogManager.GetLogger("WebLogger");

            if (log.IsErrorEnabled)

            {

                log.Error(message);

            }

            log = null;

        }

        public static void fatal(string message)

        {

            object o = ConfigurationSettings.GetConfig("log4net");

            log4net.Config.DOMConfigurator.Configure(o as System.Xml.XmlElement);

            log4net.ILog log = log4net.LogManager.GetLogger("WebLogger");

            if (log.IsFatalEnabled)

            {

                log.Fatal(message);

            }

            log = null;

        }

        public static void info(string message)

        {

            object o = ConfigurationSettings.GetConfig("log4net");

            log4net.Config.DOMConfigurator.Configure(o as System.Xml.XmlElement);

            log4net.ILog log = log4net.LogManager.GetLogger("WebLogger");

            if (log.IsInfoEnabled)

            {

                log.Info(message);

            }

            log = null;

        }

      

        public static void warn(string message)

        {

            object o = ConfigurationSettings.GetConfig("log4net");

            log4net.Config.DOMConfigurator.Configure(o as System.Xml.XmlElement);

            log4net.ILog log = log4net.LogManager.GetLogger("WebLogger");

            if (log.IsWarnEnabled)

            {

                log.Warn(message);

            }

            log = null;

        }

    }

===B/S配置===

1.同样是引用log4net.dll

2.在项目的Properties下的AssemblyInfo.cs末尾添加

[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]//这个地方与c/s不同,指定一个特定配置文件

3.新建log4net.config并添加如下内容

<?xml version="1.0" encoding="utf-8"?>

<log4net>

  <root>

    <level value="ALL"/>

    <appender-ref ref="SysAppender"/>

  </root>

  <logger name="WebLogger">

    <level value="DEBUG"/>

    <appender-ref ref="SysAppender" />

  </logger>

  <logger name="SocketLogger">

    <level value="DEBUG"/>

    <appender-ref ref="SysAppender" />

  </logger>

  <appender name="SysAppender" type="log4net.Appender.RollingFileAppender,log4net" >

    <param name="File" value="log\" />

    <param name="AppendToFile" value="true" />

    <param name="RollingStyle" value="Date" />

    <param name="DatePattern" value=""Logs_"yyyyMMdd".txt"" />

    <param name="StaticLogFileName" value="false" />

    <layout type="log4net.Layout.PatternLayout,log4net">

      <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />

      <param name="Header" value=" ----------------------header-------------------------- " />

      <param name="Footer" value=" ----------------------footer-------------------------- " />

    </layout>

  </log4net>

4.添加调用类

见C/S

5.在Web.config中configuration/configurations/sectionGroup添加

<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/> 

 

 

总结:C/S和B/S的配置关键是如何让log4net知道配置文件所在,已经配置文件的正确编写.