Java RollingFileAppender 如何与 log4j2 一起工作？
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How does RollingFileAppender work with log4j2?
提问by membersound
I'm use to RollingFileAppenderon normal log4j. Now I'm switching to log4j2, and cannot get the appender to work.
我RollingFileAppender习惯在普通的 log4j 上。现在我要切换到log4j2，并且无法让 appender 工作。
The Fileappender below works as expected. But the logging file for RollingFileis never created. Why?
File下面的附加程序按预期工作。但是RollingFile永远不会创建日志文件。为什么？
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<File name="FILE" fileName="c:/logs.log">
<PatternLayout pattern="%d %p %c: %m%n" />
</File>
<RollingFile name="ROLLING" fileName="c:/logsroll.log">
<PatternLayout pattern="%d %p %c: %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="0.001 MB"/>
</Policies>
<DefaultRolloverStrategy max="10"/>
</RollingFile>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="FILE" />
<AppenderRef ref="ROLLING" />
</Root>
</Loggers>
</Configuration>
采纳答案by Joe
The RollingFiletag is missing a filePatternattribute.
该RollingFile标记缺少filePattern属性。
<RollingFile name="ROLLING"
fileName="c:/logsroll.log"
filePattern="c:/logsroll-%i.log">
回答by Alireza Fattahi
I used log4j2 version 2.0, in some cases it throws error if you do not set any date in file pattern, in this case you can use some thing like below:
我使用的是 log4j2 2.0 版，在某些情况下，如果您没有在文件模式中设置任何日期，它会抛出错误，在这种情况下，您可以使用以下内容：
<RollingFile name="MyFile" fileName="d:/log/bsi/admin/total/totalLog.log"
filePattern="d:/log/totalLog-%d{MM-dd-yyyy}-%i.log">
<PatternLayout>
<Pattern>%d %p %c [%t] %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="1 MB"/>
</Policies>
<DefaultRolloverStrategy max="2000"/>
</RollingFile>
