log4net 使用

1.web.config 

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


 <log4net debug="false">
    <appender name="LogFileAppender" type="log4net.Appender.FileAppender" >
      <file value="webapp-log.txt" />
      <appendToFile value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline" />
      </layout>
    </appender>

    <appender name="HttpTraceAppender" type="log4net.Appender.AspNetTraceAppender" >
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline" />
      </layout>
    </appender>
    <!--可以按照时间或文件大小等条件写入到多个文件-->
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="log-data\rolling-log.txt" />
      <appendToFile value="true" />
      <maxSizeRollBackups value="10" />
      <maximumFileSize value="5MB" />
      <rollingStyle value="Size" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline" />
      </layout>
    </appender>

    <appender name="ADONetAppender" type="log4net.Appender.ADONetAppender">
      <bufferSize value="2" />
      <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
      <connectionString value="Data Source=localhost;user id=sa;password=sa;Database=MQDB" />
      <commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @message, @exception)" />
      <parameter>
        <parameterName value="@log_date" />
        <dbType value="DateTime" />
        <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>

      <parameter>
        <parameterName value="@exception" />
        <dbType value="String" />
        <size value="2000" />
        <layout type="log4net.Layout.ExceptionLayout" />
      </parameter>
    </appender>


    <logger name="App.Logging">
      <level value="ALL"/>
      <appender-ref ref="ADONetAppender" />
    </logger>

    <root>
      <level value="DEBUG" />
      <appender-ref ref="LogFileAppender" />
    </root>
  </log4net>

2.Global.asax

void Application_Start(object sender, EventArgs e) 

3. .cs

   ILog log = LogManager.Exists("App.Logging"); 
        log.Info("列出操作员信息", new Exception("OPer"));