java - log4j2:模式不包含日期

Question

我正在尝试迁移到 log4j2，但收到 java.lang.IllegalStateException:“模式不包含日期。”

我为每个 RollingFile 设置了一个 filePattern，所以我不确定我做错了什么。仅供引用，我正在 Eclipse (Kepler) 上运行 Tomcat。

这是我的 log4j2.xml:

<?xml version="1.0" encoding="UTF-8"?>

<Configuration status="WARN">

    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss,SSS} [%-5p] - %m%n" />
        </Console>

        <RollingFile name="RootFile" fileName="injunction.log" immediateFlush="false" append="false"
            filePattern="injunction.log.%d{yyyy-MM-dd}">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss,SSS} [%-5p] - %m%n"/>
            <Policies>
                <!--  Roll over the file to the next day -->
                <TimeBasedTriggeringPolicy />
            </Policies>
            <!--  Only keep up to 30 archived log files -->
            <DefaultRolloverStrategy max="30"/>
        </RollingFile>

        <RollingFile name="DBFile" fileName="db.log" immediateFlush="false" append="false"
            filePattern="db.log.%d{yyyy-MM-dd}">>
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss,SSS} [%-5p] - %m%n"/>
            <Policies>
                <!--  Roll over the file to the next day -->
                <TimeBasedTriggeringPolicy />
            </Policies>
            <!--  Only keep up to 30 archived log files -->
            <DefaultRolloverStrategy max="30"/>
        </RollingFile>

    </Appenders>

    <Loggers>
        <Root level="debug">
            <AppenderRef ref="Console" />
            <AppenderRef ref="RootFile" />
        </Root>

        <Logger name="DBLogger" level="debug" additivity="false">
            <AppenderRef ref="Console" />
            <AppenderRef ref="DBFile" />
        </Logger>
    </Loggers>

</Configuration>

Answer 1

TimeBasedTriggeringPolicy 需要日期来确定文件翻转的频率