<!--将info级别的日志单独输出到info.log中-->
        <RollingFile name="INFO-LOG"  fileName="info.log">
            <Filters>
                <!--将WARN及其以上级别的日志给DENY掉-->
                <ThresholdFilter level="WARN"  onMatch="DENY"   onMismatch="NEUTRAL"/>
                <!--ACCEPT info级别的日志-->
                <ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY" />
            </Filters>
        </RollingFile>
        <!--将warn级别的日志单独输出到warn.log中-->
        <RollingFile name="WARN-LOG"  fileName="warn.log">
            <Filters>
                <!--将ERROR及其以上级别的日志给DENY掉-->
                <ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL"/>
                <!--ACCEPT warn级别的日志-->
                <ThresholdFilter level="WARN" onMatch="ACCEPT" onMismatch="DENY"/>
            </Filters>
        </RollingFile>
        <!--将error级别的日志单独输出到error.log中-->
        <RollingFile name="ERROR-LOG" fileName="error.log">
            <ThresholdFilter level="ERROR" onMatch="ACCEPT" onMismatch="DENY"/>
        </RollingFile>