问如何配置logback自动gzip我的日志？

EN

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

    <property name="LOG_DIR" value="/home/ying/.jetty_logs/vehicle" />

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%date [%thread] %-5level %logger{36}[%L] - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="LAST" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_DIR}/last.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>last.%d{yyyy-MM}.gz</fileNamePattern>
            <maxHistory>24</maxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%date:%msg%n</pattern>
        </encoder>
    </appender>

    <logger name="org.springframework" level="WARN" />
    <logger name="org.apache.shiro" level="WARN" />
    <logger name="org.hibernate" level="WARN" />

    <logger name="ying.car.interceptor.AutoLoginInterceptor" additivity="false" level="INFO">
        <appender-ref ref="LAST" />
    </logger>
    <logger name="ying.car.controller.LoginController" additivity="false" level="INFO">
        <appender-ref ref="LAST" />
    </logger>
    <logger name="ying.car.controller.LogoutController" additivity="false" level="INFO">
        <appender-ref ref="LAST" />
    </logger>

    <root level="DEBUG">
        <appender-ref ref="STDOUT" />
    </root>

</configuration>