RollingFileAppender如何与log4j2一起使用? [英] How does RollingFileAppender work with log4j2?

问题描述

我习惯于在普通log4j上使用RollingFileAppender.现在，我切换到log4j2，并且无法使附加程序正常工作.

I'm use to RollingFileAppender on normal log4j. Now I'm switching to log4j2, and cannot get the appender to work.

下面的File附加程序可以正常工作.但是不会创建RollingFile的日志记录文件.为什么?

The File appender below works as expected. But the logging file for RollingFile is never created. Why?

<?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>

推荐答案

RollingFile标记缺少filePattern属性.

<RollingFile name="ROLLING" 
             fileName="c:/logsroll.log"
             filePattern="c:/logsroll-%i.log">

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