使用Common.Logging+log4net规范日志管理
<configSections>
<sectionGroup name="common">
<section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging" />
</sectionGroup>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
</configSections>
<common>
<!--[DEBUG < INFO < WARN < ERROR < FATAL]-->
<logging>
<!--<factoryAdapter type="Common.Logging.Simple.ConsoleOutLoggerFactoryAdapter, Common.Logging">
<arg key="level" value="WARN" />
<arg key="showLogName" value="true" />
<arg key="showDataTime" value="true" />
<arg key="dateTimeFormat" value="yyyy/MM/dd HH:mm:ss:fff" />
</factoryAdapter>-->
<factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4Net1215">
<!--FILE
FILE-WATCH
INLINE
EXTERNAL-->
<!--<arg key="configType" value="INLINE" />-->
<arg key="configType" value="FILE-WATCH" />
<arg key="configFile" value="~/log4net.config" />
<!--log4net使用独立的配置文件-->
</factoryAdapter>
</logging>
</common>
<arg key="configType" value="FILE-WATCH" />
<?xml version="1.0" encoding="utf-8" ?>
<log4net>
<!--<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger %ndc - %message%newline" />
</layout>
</appender>-->
<appender name="InfoRollingLogFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<param name="LockingModel" type="log4net.Appender.FileAppender+MinimalLock" />
<param name="File" value="logs/" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="'Info-'yyyy-MM-dd.'log'" />
<param name="AppendToFile" value="true" />
<param name="MaxSizeRollBackups" value="10" />
<param name="MaximumFileSize" value="5MB" />
<param name="RollingStyle" value="Date" />
<!--Size ==- Date-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG"/>
<levelMax value="WARN"/>
</filter>
</appender>
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<param name="LockingModel" type="log4net.Appender.FileAppender+MinimalLock" />
<param name="File" value="logs/" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="'Error-'yyyy-MM-dd.'log'" />
<param name="AppendToFile" value="true" />
<param name="MaxSizeRollBackups" value="10" />
<param name="MaximumFileSize" value="5MB" />
<param name="RollingStyle" value="Date" />
<!--Size ==- Date-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="ERROR"/>
<levelMax value="FATAL"/>
</filter>
</appender>
<appender name="DefaultRollingLogFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<param name="LockingModel" type="log4net.Appender.FileAppender+MinimalLock" />
<param name="File" value="logs/" /><!--文件保存的路径-->
<param name="StaticLogFileName" value="false" /><!--文件名动态生成-->
<param name="DatePattern" value="'Default-'yyyy-MM-dd.'log'" /><!--文件名命名规则-->
<param name="AppendToFile" value="true" />
<param name="MaxSizeRollBackups" value="10" />
<param name="MaximumFileSize" value="5MB" /><!--文件超过5M将创建新文件-->
<param name="RollingStyle" value="Date" />
<!--Size ==- Date-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /><!--日志内容格式-->
</layout>
<filter type="log4net.Filter.LevelRangeFilter"><!--日志级别过滤器:此附加器只附加指定级别的日志-->
<levelMin value="DEBUG"/>
<levelMax value="FATAL"/>
</filter>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="RollingLogFileAppender" />
<appender-ref ref="InfoRollingLogFileAppender" />
</root>
<logger name="MyApp.DataAccessLayer">
<level value="DEBUG" />
</logger>
<!-- ALL DEBUG INFO WARN ERROR FATAL OFF [DEBUG < INFO < WARN < ERROR < FATAL] 大范围 到 小范围-->
<logger name="LogDemoWeb._Default" debug="false">
<level value="ALL" />
<appender-ref ref="DefaultRollingLogFileAppender" />
</logger>
</log4net>
这个文件建议从下往上读,上文红色部分是日志记录器一共三个:
一个root日志记录器,log4net只允许一个root日志记录器,用于做全局日志输出
<root>
<level value="ALL" />
<appender-ref ref="RollingLogFileAppender" />
<appender-ref ref="InfoRollingLogFileAppender" />
</root>
其中: <level value="ALL" />表示记录器会将所有级别的日志提交给这里配置的附加器
这里配置了两个附加器:RollingLogFileAppender和InfoRollingLogFileAppender(配置文件中的appender节点)
两个logger:
第一个:
<logger name="MyApp.DataAccessLayer">
<level value="DEBUG" />
</logger>
没有配置appender(附加器)将不会输出日志
第二个:
<logger name="LogDemoWeb._Default" debug="false">
<level value="ALL" />
<appender-ref ref="DefaultRollingLogFileAppender" />
</logger>
配置了DefaultRollingLogFileAppender附加器,将按上面对应的附加器输出日志。
附加器(appender)可以定义多个,它只是一个声明,是否使用还是要看日志记录器是否引用了。
这个配置文件中DefaultRollingLogFileAppender 附加器(appender)的配置示例如下:
<appender name="DefaultRollingLogFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<param name="LockingModel" type="log4net.Appender.FileAppender+MinimalLock" />
<param name="File" value="logs/" /><!--文件保存的路径-->
<param name="StaticLogFileName" value="false" /><!--文件名动态生成-->
<param name="DatePattern" value="'Default-'yyyy-MM-dd.'log'" /><!--文件名命名规则-->
<param name="AppendToFile" value="true" />
<param name="MaxSizeRollBackups" value="10" />
<param name="MaximumFileSize" value="5MB" /><!--文件超过5M将创建新文件-->
<param name="RollingStyle" value="Date" />
<!--Size ==- Date-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /><!--日志内容格式-->
</layout>
<filter type="log4net.Filter.LevelRangeFilter"><!--日志级别过滤器:此附加器只附加指定级别的日志-->
<levelMin value="DEBUG"/>
<levelMax value="FATAL"/>
</filter>
</appender>
附加器的配置要点:
1、name="DefaultRollingLogFileAppender"
定义附加器的名称,方便日志记录器调用
2、type="log4net.Appender.RollingFileAppender, log4net"
附加器的类型,附加器的具体实现类,log4net提供多种日志存储(附加)方式,在这里就是不同的附加器实现类。
详细的附加器类型可以查看官方文档中的appender章节:
http://logging.apache.org/log4net/release/manual/introduction.html
做好以上配置后代码就相当简单了
一般我是这样写的:
/// <summary>
/// Common.Logging日志示例
/// </summary>
public class LogDemoBLL1
{
//获取ILog实例
public static ILog logObj = Common.Logging.LogManager.GetLogger<LogDemoBLL1>();
public LogDemoBLL1()
{ }
public void Method1()
{ logObj.Trace("This is a Trace Log!");
logObj.Debug("This is a Debug Log!");
logObj.Info("This is a Info Log!");
logObj.Warn("This is a Warn Log!");
//将在Info-yyyy-MM-dd.log输出以下内容(根据配置输出有可能不一样):
//2016-08-18 21:28:44,095 [10] DEBUG LogDemo.BLL.LogDemoBLL1 - This is a Debug Log!
//2016-08-18 21:28:44,101 [10] INFO LogDemo.BLL.LogDemoBLL1 - This is a Info Log!
//2016-08-18 21:28:44,101 [10] WARN LogDemo.BLL.LogDemoBLL1 - This is a Warn Log! logObj.Error("This is a Error Log!");
logObj.Fatal("This is a Fatal Log!");
//将在Error-yyyy-MM-dd.log输出以下内容(根据配置输出有可能不一样):
//2016-08-18 21:28:44,101 [10] ERROR LogDemo.BLL.LogDemoBLL1 - This is a Error Log!
//2016-08-18 21:28:44,102 [10] FATAL LogDemo.BLL.LogDemoBLL1 - This is a Fatal Log!
try
{
throw new Exception("Throw an Exception For Test");
}
catch (Exception ex)
{
//异常日志
logObj.Error(ex);
//将在Error-yyyy-MM-dd.log输出以下内容(根据配置输出有可能不一样):
//2016-08-18 21:28:44,106 [10] ERROR LogDemo.BLL.LogDemoBLL1 - System.Exception: Throw an Exception For Test
// 在 LogDemo.BLL.LogDemoBLL1.Method1() 位置 E:\MyWork\CSharpProject\CSharp\LogDemo\LogDemo\LogDemo\BLL\LogDemoBLL1.cs:行号 34 } }
}
如果有需要log4net还可以通过log4net.Appender.MemoryAppender类将日志显示在程序界面上。具体用法就不详细介绍了。
关于log4net的详细介绍可以看下面的文章:
http://www.cnblogs.com/dragon/archive/2005/03/24/124254.html
Common.Logging官方网站:
http://commons.apache.org/proper/commons-logging/
Common.Logging中文介绍:
http://www.cnblogs.com/chen-whutgis/p/4129271.html
log4net官方网站
http://logging.apache.org/log4net/release/manual/introduction.html
Log4net的配置学习与总结
http://blog.csdn.net/wziyx513225244/article/details/6628627
另外安利一些高级打开方式:
Log4net 写文件日志与数据库日志
http://blog.csdn.net/manbufenglin/article/details/7168472
程序的记事本--log4net:这里介绍了常有的日志管理框架,值得一看。
http://blog.csdn.net/zhang_xinxiu/article/details/40649791