http://www.cnblogs.com/kongxx/archive/2005/10/09/251073.aspx

在log4net是.net平臺中日志記錄的開源工具包，其中包括了很多記錄日志的方式和模板，詳細(xì)可以參考log4net的document，這里僅僅就在使用log4net向MySQL記錄日志做說明。

1)首先需要到mysql的官方網(wǎng)站(www.mysql.com)下載驅(qū)動，網(wǎng)站上提供了兩個驅(qū)動，這里我使用的mysql-connector-net連接器，版本是1.0.6。其中在下載的時候會有兩種包，一種是.exe安裝包，一種是no-install包，我這里使用的是no-install包（文件名：mysql-connector-net-1.0.6-noinstall.zip）。解壓縮zip文件，復(fù)制bin\net-1.1\release\MySql.Data.dll到項目下；
2)在項目中添加引用，選擇MySql.Data.dll；
3)在本機(jī)的mysql上使用test數(shù)據(jù)庫，使用一下sql創(chuàng)建表：

CREATE?TABLE?mylog111?(
??id?int(11)?NOT?NULL?auto_increment,
??log_datetime?timestamp?NOT?NULL,
??log_thread?varchar(255)?default?NULL,
??log_level?varchar(255)?default?NULL,
??log_logger?varchar(255)?default?NULL,
??log_message?varchar(255)?default?NULL,
??PRIMARY?KEY??(id)
)?

4)修改app.config添加以下內(nèi)容

<?xml?version="1.0"?encoding="gb2312"??>
<configuration>
????<configSections>????????
????????<section?name="log4net"?type="log4net.Config.Log4NetConfigurationSectionHandler,?log4net"?/>????????
????</configSections>
????
????<log4net>
????????<appender?name="stdout"?type="log4net.Appender.ConsoleAppender">
????????????<layout?type="log4net.Layout.PatternLayout">
????????????????<param?name="ConversionPattern"?value="[%d?%l]?%m%n"?/>
????????????</layout>
????????</appender>
????????
????????<appender?name="ADONetAppender"?type="log4net.Appender.ADONetAppender">
????????????<param?name="ConnectionType"?value="MySql.Data.MySqlClient.MySqlConnection,?MySql.Data"?/>
????????????<param?name="ConnectionString"?value="database=test;server=localhost;user?id=root;password=;old?syntax=yes"/>
????????????<param?name="CommandText"?value="insert?into?mylog(log_datetime,log_thread,log_level,log_logger,log_message)?values(@log_datetime,?@log_thread?,?@log_level,?@log_logger,?@log_message)"?/>
????????????
????????????<param?name="Parameter">
????????????????<param?name="ParameterName"?value="@log_datetime"?/>
????????????????<param?name="DbType"?value="DateTime"?/>
????????????????<param?name="Layout"?type="log4net.Layout.PatternLayout">
????????????????????<param?name="ConversionPattern"?value="%d{yyyy'-'MM'-'dd?HH':'mm':'ss'.'fff}"?/>
????????????????</param>
????????????</param>

????????????<param?name="Parameter">
????????????????<param?name="ParameterName"?value="@log_thread"?/>
????????????????<param?name="DbType"?value="String"?/>
????????????????<param?name="Size"?value="255"?/>
????????????????<param?name="Layout"?type="log4net.Layout.PatternLayout">
????????????????????<param?name="ConversionPattern"?value="%t"?/>????????????????
????????????????</param>
????????????</param>
????????????<param?name="Parameter">
????????????????<param?name="ParameterName"?value="@log_level"?/>
????????????????<param?name="DbType"?value="String"?/>
????????????????<param?name="Size"?value="50"?/>
????????????????<param?name="Layout"?type="log4net.Layout.PatternLayout">
????????????????????<param?name="ConversionPattern"?value="%p"?/>
????????????????</param>
????????????</param>
????????????<param?name="Parameter">
????????????????<param?name="ParameterName"?value="@log_logger"?/>
????????????????<param?name="DbType"?value="String"?/>
????????????????<param?name="Size"?value="255"?/>
????????????????<param?name="Layout"?type="log4net.Layout.PatternLayout">
????????????????????<param?name="ConversionPattern"?value="%c"?/>
????????????????</param>
????????????</param>
????????????<param?name="Parameter">
????????????????<param?name="ParameterName"?value="@log_message"?/>
????????????????<param?name="DbType"?value="String"?/>
????????????????<param?name="Size"?value="255"?/>
????????????????<param?name="Layout"?type="log4net.Layout.PatternLayout">
????????????????????<param?name="ConversionPattern"?value="%m"?/>
????????????????</param>
????????????</param>
????????</appender>

????????<appender?name="file"?type="log4net.Appender.RollingFileAppender">
????????????<param?name="File"?value="log\\log"?/>
????????????<param?name="AppendToFile"?value="true"?/>
????????????<param?name="RollingStyle"?value="Date"?/>
????????????<param?name="DatePattern"?value="yyyy-MM-dd"?/>
????????????<layout?type="log4net.Layout.PatternLayout">
????????????????<param?name="ConversionPattern"?value="[%d?%l]?%m%n"?/>
????????????</layout>
????????</appender>
????????<root>
????????????<level?value="ALL"?/>
????????????<appender-ref?ref="ADONetAppender"?/>
????????</root>
????????<logger?name="*">
????????????<level?value="ALL"?/>
????????????<appender-ref?ref="ADONetAppender"?/>
????????</logger>
????</log4net>
</configuration>

5)在代碼中使用一下代碼測試
??? log.Info("==========================");

如果順利應(yīng)該OK了，呵呵。

轉(zhuǎn)載于:https://www.cnblogs.com/jambol/archive/2007/08/23/866394.html

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