log4net使用

使用Log4Net步骤如下:

1:添加对log4net.dll的引用;

2:配置web.config

 

代码
<configuration>
    
<configSections>        
        
<section name="log4net"  type="System.Configuration.IgnoreSectionHandler"></section>
</configSections>

<log4net debug="false">
        
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">        
            
<param name="File" value="Log\\" />
            
<param name="AppendToFile" value="true" />
            
<param name="MaxSizeRollBackups" value="10" />
            
<param name="StaticLogFileName" value="false" />        
            
<param name="DatePattern" value="yyyy-MM-dd&quot;.log&quot;" />            
            
<param name="RollingStyle" value="Date" />
            
<layout type="log4net.Layout.PatternLayout">
                
<param name="ConversionPattern" value="%d [%t] %-5p %c [%x] - %m%n%n" />
            
</layout>
            
        
</appender>
        
<root>
            
<level value="DEBUG"/>
            
<appender-ref ref="RollingLogFileAppender"/>
            
        
</root>
    
</log4net>

 

 

3:在AssemblyInfo.cs添加[assembly: log4net.Config.DOMConfiguratorAttribute()] ;

source code如附件 https://files.cnblogs.com/Mac_Hui/Log4NetDemo.7z

 

______________________________________________________

补充:

 

 

Log4net 主要类:

 

Appender 附加,增加

配置附加器有很多种,主要用到的几种:

 

log4net.Appender.AdoNetAppender <记录到数据库配置access,sqlserver或者其他的数据库>

log4net.Appender.FileAppender <记录到记录日志到单个文件>

log4net.Appender.EventLogAppender <记录到记录日志到操作系统的事件>

log4net.Appender.RollingFileAppender <记录到记录日志到文件,可以设置文件的名字,或者多个文件>

 

<appender name="ADONetAppender_SqlServer" type="log4net.Appender.AdoNetAppender">

<appender name="AdoNetAppender_Access" type="log4net.Appender.AdoNetAppender">

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

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

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

 

具体应用方法:

 

第一步:把log4net加入到引用

第二步:配置log4net config 可以配置成数据库或者文件或者操作系统事件里面

第三步:

    如果是网站:

       在global.asax里面新增配置

       void Application_Start(object sender, EventArgs e)

           {

               // 在应用程序启动时运行的代码

               log4net.Config.XmlConfigurator.Configure();

           }

    如果是web项目和winform项目或者控制台项目:

    要在AssemblyInfo.cs 新增

    [assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)] 

    或者:[assembly: log4net.Config.XmlConfigurator()]  (把log4net的配置配置在web的配置文件时)

 

具体常用的是 log4net.Appender.RollingFileAppender

可以根据日期生成日志文件

和log4net.Appender.FileAppender区别是后者只能生成一个文件,

log4net.Appender.FileAppender写的日志或追加或覆盖操作一个文件

 

还有配置写日志时:

<root>

      <level value="ALL"/>

      <appender-ref ref="ADONetAppender_SqlServer"/>

 </root>

 <logger name="ADONetAppender_SqlServer">

      <level value="All"/>

      <appender-ref ref="ADONetAppender_SqlServer"/>

      <appender-ref ref="FileAppender"></appender-ref>

 </logger>

 

用后者需要在 在log4net.LogManager.GetLogger 是填写正确的logger,不然获得不到节点就写不了日志

 

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

 

  log.Info("hello world!");

 

  而前者用起来更方便,可以写出在那个类报的错

  log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

 

  log.Error("error", new Exception("hello world! 报错了!"));

 

常用配置如下:

 

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

      <!--日志的路径-->

      <file value="log\log" />

      <!--是否覆盖,默认是追加true-->

      <appendToFile value="true"/>

      <!--文件名称-->

      <DatePattern value="yyyyMMdd &quot;.txt&quot;"></DatePattern>

      <!--设置无限备份=-1 ,最大备份数为1000-->

      <maxSizeRollBackups value="1000"/>

      <!--每个文件的最大20k-->

      <maximumFileSize value="20"/>

      <!--名称是否可以更改为false为可以更改-->

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

     

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

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

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

      </layout>

</appender>

 

写到sqlserver的配置:

<appender name="ADONetAppender_SqlServer" type="log4net.Appender.AdoNetAppender">

      <!--<bufferSize value="10" />-->

      <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>

      <connectionString value="Server=localhost;UID=sa;PWD=sa;DataBase=log;Max Pool Size=1000"/>

      <commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)"/>

      <parameter>

        <parameterName value="@log_date"/>

        <dbType value="DateTime"/>

        <!--

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

                    <conversionPattern value="%date{yyyy'-'MM'-'dd HH':'mm':'ss'.'fff}" />

                </layout>

                -->

        <layout type="log4net.Layout.RawTimeStampLayout"/>

      </parameter>

      <parameter>

        <parameterName value="@thread"/>

        <dbType value="String"/>

        <size value="255"/>

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

          <conversionPattern value="%thread"/>

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@log_level"/>

        <dbType value="String"/>

        <size value="50"/>

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

          <conversionPattern value="%level"/>

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@logger"/>

        <dbType value="String"/>

        <size value="255"/>

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

          <conversionPattern value="%logger"/>

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@message"/>

        <dbType value="String"/>

        <size value="4000"/>

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

          <conversionPattern value="%message"/>

        </layout>

      </parameter>

</appender>

 

写到access配置:

 

<appender name="AdoNetAppender_Access" type="log4net.Appender.AdoNetAppender">

      <bufferSize value="1" />

      <connectionString value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\\工作目录\\代码http://www.cnblogs.com/Mac_Hui/admin/file://demo//LogDemo//db//access.mdb;User Id=;Password=;" />

      <commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)" />

      <parameter>

        <parameterName value="@log_date" />

        <dbType value="String" />

        <size value="255" />

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

          <conversionPattern value="%date" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@thread" />

        <dbType value="String" />

        <size value="255" />

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

          <conversionPattern value="%thread" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@log_level" />

        <dbType value="String" />

        <size value="50" />

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

          <conversionPattern value="%level" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@logger" />

        <dbType value="String" />

        <size value="255" />

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

          <conversionPattern value="%logger" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@message" />

        <dbType value="String" />

        <size value="1024" />

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

          <conversionPattern value="%message" />

        </layout>

      </parameter>

    </appender>

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

      <mapping>

        <level value="ALL" />

        <foreColor value="White" />

        <backColor value="Red, HighIntensity" />

      </mapping>

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

        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />

      </layout>

    </appender>

    <!--写入到文件,是累加,不生成新的文件-->

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

      <!--日志写入路径-->

      <file value="log\log-file.txt" />

      <!--overwritten/appended to default =true 默认是追加-->

      <appendToFile value="true" />

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

        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />

      </layout>

    </appender>

 

<!--写入到操作系统-->

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

      <ApplicationName value="msg"></ApplicationName>

      <LogName value="测试"></LogName>

      <MachineName value="zhangqi"></MachineName>

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

        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"/>

      </layout>

    </appender>

 

<!--写入到文件-->

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

      <!--<file value="log\log.txt"/>-->

      <!--<file name="Client.Logging" value="log\log" />-->

      <file value="log\log" />

      <!--是否覆盖,默认是追加true-->

      <appendToFile value="true"/>

      <DatePattern value="yyyyMMdd &quot;.txt&quot;"></DatePattern>

      <!--设置无限备份=-1 ,最大备份数为1000-->

      <maxSizeRollBackups value="1000"/>

      <!--每个文件的最大20k-->

      <maximumFileSize value="20"/>

      <!--名称是否可以更改为false为可以更改-->

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

      <!--文件名称-->

      <!--<param name="DatePattern" value="yyyyMMdd&quot;.txt&quot;" />-->

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

      <!--<param name="RollingStyle" value="Composite" />-->

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

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

      </layout>

    </appender>

 

<!--写入到文件,是累加,不生成新的文件-->

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

      <!--日志写入路径-->

      <file value="log\log-file.txt" />

      <!--overwritten/appended to default =true 默认是追加-->

      <appendToFile value="true" />

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

        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />

      </layout>

    </appender>

 

<root>

      <level value="ALL"/>

      <appender-ref ref="ADONetAppender_SqlServer"/>

      <appender-ref ref="RollingLogFileAppender"/>

      <appender-ref ref="EventLogAppender"></appender-ref>

      <appender-ref ref="AdoNetAppender_Access"></appender-ref>

      <appender-ref ref="ColoredConsoleAppender"></appender-ref>

      <appender-ref ref="FileAppender"></appender-ref>

    </root>

 

<logger name="ConsoleApp.LoggingExample">

      --><!--<appender-ref ref="B" />--><!--

      <level value="All"/>

      <appender-ref ref="ADONetAppender_SqlServer"/>

      <appender-ref ref="RollingLogFileAppender"/>

    </logger>

    <logger name="LoggingExample">

      --><!--<appender-ref ref="B" />--><!--

      <level value="All"/>

      <appender-ref ref="ADONetAppender_SqlServer"/>

      <appender-ref ref="FileAppender"></appender-ref>

    </logger>

 

本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/hk8846/archive/2008/11/18/3325477.aspx


 

posted @ 2010-10-14 15:08  只想做好  阅读(3090)  评论(0编辑  收藏  举报