比较舒服的log4j2.xml

控制台输出带缩略、对齐和彩色，文件输出信息比较完整。

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

<Configuration status="DEBUG">

    <Properties>

        <property name="APP_NAME">my-app</property>

        <property name="LOG_HOME">/home/logs/${APP_NAME}</property>

        <property name="LOG_NAME">${APP_NAME}.log</property>

    </Properties>

    <Appenders>

        <Console name="Console" target="SYSTEM_OUT" follow="true">

            <PatternLayout pattern="%clr{%d{HH:mm:ss.SSS}}{faint} %clr{%5p} %clr{[%16.16t]}{faint} %4L %clr{%-32.32c{1.}}{cyan} %clr{%-16.16M}{cyan} %clr{:}{faint} %msg%xEx%n"/>

        </Console>

        <RollingFile name="RollingFile" fileName="${LOG_HOME}/${LOG_NAME}"

                    filePattern="${LOG_HOME}/${LOG_NAME}.%d{yyyyMMdd}.log">

            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>

            <Policies>

                <TimeBasedTriggeringPolicy/>

            </Policies>

        </RollingFile>

    </Appenders>

    <Loggers>

        <Logger name="org.apache.catalina.startup.DigesterFactory" level="error"/>

        <Logger name="org.apache.catalina.util.LifecycleBase" level="error"/>

        <Logger name="org.apache.coyote.http11.Http11NioProtocol" level="warn"/>

        <logger name="org.apache.sshd.common.util.SecurityUtils" level="warn"/>

        <Logger name="org.apache.tomcat.util.net.NioSelectorPool" level="warn"/>

        <Logger name="org.eclipse.jetty.util.component.AbstractLifeCycle" level="error"/>

        <Logger name="org.hibernate.validator.internal.util.Version" level="warn"/>

        <logger name="org.springframework.boot.actuate.endpoint.jmx" level="warn"/>

        <Root level="INFO">

            <AppenderRef ref="Console"/>

            <AppenderRef ref="RollingFile"/>

        </Root>

    </Loggers>

</Configuration>