Log4Net StringMatchFilter没有过滤任何东西

时间:2012-07-03 17:11:53

标签: .net nhibernate log4net filtering string-matching

我正在记录nHibernate生成的所有SQL,因为我们有一个奇怪的问题。仅此一项就会产生巨大的日志,所以我试图通过尝试仅记录包含特定ID的行来缩短它们。看起来好像一切都将通过。这有什么看起来很奇怪吗?

    <appender name="RollingFile" type="log4net.Appender.RollingFileAppender,log4net" >

        <param name="File" value="nHibernate.txt" />
        <param name="AppendToFile" value="true" />
        <param name="DatePattern" value="yyyy.MM.dd" />

        <layout type="log4net.Layout.PatternLayout,log4net">
            <conversionPattern value="%d %p %m%n" />
        </layout>

        <filter type="log4net.Filter.StringMatchFilter">
            <stringToMatch value="5764" />
            <acceptOnMatch value="true" />
        </filter>

    </appender>

    <logger name="NHibernate.SQL" additivity="false">
        <level value="DEBUG" />
        <appender-ref ref="RollingFile" />
    </logger>

1 个答案:

答案 0 :(得分:22)

事实证明你需要添加以下代码:

<filter type="log4net.Filter.DenyAllFilter" />

完整的区块如下所示:

    <appender name="RollingFile" type="log4net.Appender.RollingFileAppender,log4net" >

        <param name="File" value="nHibernate.txt" />
        <param name="AppendToFile" value="true" />
        <param name="DatePattern" value="yyyy.MM.dd" />

        <layout type="log4net.Layout.PatternLayout,log4net">
            <conversionPattern value="%d %p %m%n" />
        </layout>

        <filter type="log4net.Filter.StringMatchFilter">
            <stringToMatch value="5764" />
            <acceptOnMatch value="true" />
        </filter>

        <!-- need this here! -->
        <filter type="log4net.Filter.DenyAllFilter" />

    </appender>

    <logger name="NHibernate.SQL" additivity="false">
        <level value="DEBUG" />
        <appender-ref ref="RollingFile" />
    </logger>