Log4j:如何解决警告:无法识别的元素-rollingPolicy，triggerPolicy [英] Log4j : How to resolve Warning : Unrecognized element - rollingPolicy , triggeringPolicy

问题描述

我的Java项目包含以下软件包 -com.main.log4j.main，com.main.log4j.other.

My Java project contains following packages - com.main.log4j.main , com.main.log4j.other.

根据我的要求，我必须从控制台中排除软件包"com.main.log4j.other"的所有日志行，并创建一个新的日志文件"OTHER_LOG.log"

As per my requirement, I have to exclude all log lines of package "com.main.log4j.other" from console and created a new log file "OTHER_LOG.log"

下面的config.xml正常工作.

The below config.xml is working properly.

现在，我想要的是，如果它("OTHER_LOG.log")超过一定大小(例如1 MB)，它将创建新文件，并保留前一个文件作为备份但带有时间戳.

Now, I want, if it ("OTHER_LOG.log") exceeds certain size lets say 1 MB, it will create new file, keeping the previous file as backup but with timestamp.

就像"OTHER_LOG.20190221155085.log"

Like, "OTHER_LOG.20190221155085.log"

这就是为什么我添加了"rollingPolicy"，"triggeringPolicy".

That's why I have added "rollingPolicy", "triggeringPolicy".

但是它发出警告-
log4j:WARN无法识别的元素rollingPolicy
log4j:WARN无法识别的元素triggeringPolicy

But It gives warning -
log4j:WARN Unrecognized element rollingPolicy
log4j:WARN Unrecognized element triggeringPolicy

<appender name="CONSOLE-LOG" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<layout class="org.apache.log4j.PatternLayout">
    <param name="ConversionPattern" value="..." />
</layout>
 </appender>
 <appender name="OTHER-LOG"
    class="org.apache.log4j.FileAppender">
    <param name="Threshold" value="DEBUG" />
    <param name="File" value="logs/OTHER_LOG.log" />
    <rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
        <param name="fileNamePattern" value="logs/OTHER_LOG.%d{yyyyMMddHHmmss}.%i.log" />
    </rollingPolicy>
    <triggeringPolicy class="org.apache.log4j.rolling.SizeBasedTriggeringPolicy">
        <param name="maxFileSize" value="1000000" />
    </triggeringPolicy>
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern" value="..." />
    </layout>
</appender>

<category name="com.main.log4j.other" additivity="false">
   <appender-ref ref="OTHER-LOG" />
</category>
<root>
<level value="debug" />
   <appender-ref ref="CONSOLE-LOG" />
</root>

我尝试使用log4j版本- 1.2.16,1.2.17 ;仍然收到警告，我的目的没有实现. 请让我知道我在哪里做错了.

I have tried with log4j version - 1.2.16,1.2.17; Still getting the warning and my purpose is not fulfilled. Please let me know where I have done the mistake.

推荐答案

对于OTHER_LOG附加程序，我使用了 org.apache.log4j.FileAppender ，但是 rollingPolicy 无效对于FileAppender，我们应该使用 org.apache.log4j.rolling.RollingFileAppender .

For OTHER_LOG appender I have used org.apache.log4j.FileAppender, but rollingPolicy will not work with FileAppender, rather we should use org.apache.log4j.rolling.RollingFileAppender.

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