Java 使 log4j 可加性等于 true 或 false 的结果是什么？
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What is the result of making log4j additivity equals to true or false?
提问by user3433510
In simple terms what is the result of making additivity="true"or additivity="false"when adding a Log4j configuration for a specific class like this?
简单来说，为这样的特定类添加additivity="true"或additivity="false"添加 Log4j 配置的结果是什么？
<Logger name="com.mypage.glass.TryWindow" level="INFO" additivity="true">
<AppenderRef ref="console"/>
<AppenderRef ref="file"/>
</Logger>
采纳答案by Duncan Jones
By default, a logger inherits the appenders from its ancestors. By setting additivity="false", you prevent this behaviour.
默认情况下，记录器从其祖先继承附加程序。通过设置additivity="false"，您可以防止这种行为。
In your example, there may be appenders associated with com.mypage.glassor com.mypageor even the root logger that would be inherited if you don't set that property to false.
在你的榜样，有可能是相关的追加程序com.mypage.glass或com.mypage或者即使你不设置该属性将被继承了根记录false。
