懂log4net 的进

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

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

  </configSections>

  <appSettings>

  </appSettings>

  <log4net>

    <!--定义输出到文件中-->

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

      <!--定义文件存放位置-->

      <file value="D:/log4netfile.txt" />

      <appendToFile value="true" />

      <rollingStyle value="Date" />

      <datePattern value="yyyyMMdd-HH:mm:ss" />

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

        <!--每条日志末尾的文字说明-->

        <footer value="by12" />

        <!--输出格式-->

        <!--样例：2008-03-26 13:42:32,111 [10] INFO  Log4NetDemo.MainClass [(null)] - info-->

        <conversionPattern value="记录时间：%date 线程ID:[%thread] 日志级别：%-5level 出错类：%logger property:[%property{NDC}] - 错误描述：%message%newline" />

      </layout>

    </appender>

    <!--定义输出到控制台命令行中-->

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

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

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

      </layout>

    </appender>

    <!--定义输出到windows事件中-->

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

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

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

      </layout>

    </appender>

    <!--定义输出到数据库中，这里举例输出到Access数据库中，数据库为C盘的log4net.mdb-->

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

      <connectionString value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:log4net.mdb" />

      <commandText value="INSERT INTO LogDetails ([LogDate],[Thread],[Level],[Logger],[Message]) VALUES (@logDate, @thread, @logLevel, @logger,@message)" />

      <!--定义各个参数-->

      <parameter>

        <parameterName value="@logDate" />

        <dbType value="String" />

        <size value="240" />

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

          <conversionPattern value="%date" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@thread" />

        <dbType value="String" />

        <size value="240" />

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

          <conversionPattern value="%thread" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@logLevel" />

        <dbType value="String" />

        <size value="240" />

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

          <conversionPattern value="%level" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@logger" />

        <dbType value="String" />

        <size value="240" />

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

          <conversionPattern value="%logger" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value="@message" />

        <dbType value="String" />

        <size value="240" />

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

          <conversionPattern value="%message" />

        </layout>

      </parameter>

    </appender>

    <!--定义日志的输出媒介，下面定义日志以四种方式输出。也可以下面的按照一种类型或其他类型输出。-->

    <root>

      <!--文件形式记录日志-->

      <appender-ref ref="LogFileAppender" />

      <!--控制台控制显示日志-->

      <appender-ref ref="ConsoleAppender" />

      <!--Windows事件日志-->

      <appender-ref ref="EventLogAppender" />

      <!-- 如果不启用相应的日志记录，可以通过这种方式注释掉

      <appender-ref ref="AdoNetAppender_Access" />

      -->

    </root>



  </log4net>

</configuration>

AssemblyInfo.cs 和窗体中都加了这句代码
[assembly: log4net.Config.XmlConfigurator(Watch = true)]

窗体中运行如下代码为什么在设置路径没有看到错误日志？
log4net.ILog mLog =
LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
mLog.Error("this is a test log message!");



难道还要在其他地方设置么？不懂，，