1

 

配置文件中

<configuration>

<configSections>

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

</configSections>

<log4net>

<!--错误日志配置-->

<appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender">

<param name="File" value="Log\\LogError\\"/>

<!--文件路径-->

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

<param name="MaxSizeRollBackups" value="100"/>

<param name="MaxFileSize" value="10240"/>

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

<param name="DatePattern" value="yyyyMMdd"/>

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

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

<param name="ConversionPattern" value="%n异常时间：%d [%t] %n异常级别：%-5p %n异 常 类：%c [%x] %n%m %n "/>

</layout>

</appender>

<!--信息日志配置-->

<appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">

<param name="File" value="Log\\LogInfo\\"/>

<!--文件路径-->

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

<param name="MaxFileSize" value="10240"/>

<param name="MaxSizeRollBackups" value="100"/>

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

<param name="DatePattern" value="yyyyMMdd"/>

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

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

<param name="ConversionPattern" value="%n日志时间：%d [%t] %n日志级别：%-5p %n日 志 类：%c [%x] %n%m %n"/>

</layout>

</appender>

<!--控制台-->

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

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

<conversionPattern value="%5level [%thread] (%file:%line) - %message%newline"/>

</layout>

</appender>

<!--log4net.LogManager.GetLogger("logerror")用这个来选择这种类型-->

<logger name="logerror">

<level value="ERROR"/>

<appender-ref ref="ErrorAppender"/>

</logger>

<!--log4net.LogManager.GetLogger("loginfo")用这个来选择这种类型-->

<logger name="loginfo">

<level value="INFO"/>

<appender-ref ref="InfoAppender"/>

</logger>

<!--<root>

<level value="INFO"/>

<appender-ref ref="InfoAppender"/>

<appender-ref ref="ConsoleAppender"/>

</root>-->

</log4net>

 

 

2 添加一个类库

 

public class LogHelper

{

public static readonly log4net.ILog logerror = log4net.LogManager.GetLogger("logerror"); //选择<logger name="logerror">的配置

static LogHelper()

{

SetConfig();

}

/// <summary>

/// 默认配置。按配置文件

/// </summary>

public static void SetConfig()

{

log4net.Config.XmlConfigurator.Configure();

}

/// <summary>

/// 写日志。出错时会写入

/// </summary>

/// <param name="info"></param>

/// <param name="se"></param>

public static void WriteErrorLog(string info, Exception se)

{

if (logerror.IsErrorEnabled)

{

logerror.Error(info, se);

}

}

public static void WriteErrorLog(string info)

{

if (logerror.IsErrorEnabled)

{

logerror.Error(info);

}

}

/// <summary>

/// 记录信息日志

/// </summary>

/// <param name="info"></param>

public static void WriteInfoLog(string info)

{

if (logerror.IsErrorEnabled)

{

logerror.Info(info);

}

}

/// <summary>

/// 记录警告日志

/// </summary>

/// <param name="info"></param>

public static void WriteWarnLog(string info)

{

if (logerror.IsErrorEnabled)

{

logerror.Warn(info);

}

}

}

 3 实咧调用

protected void Page_Load(object sender, EventArgs e)

{

    LogHelper.WriteErrorLog("异常信息测试");

}