logback 日誌輸出級別設置

在公司的項目中用logback作日誌輸出操做,一個logger日誌會同時顯示在界面,也會記錄到文件.經過仔細閱讀官方文檔,發現能夠在不影響界面的輸出狀況下改變文件的輸出級別.具體以下:

<appender name="DEVICE_MESSAGE_DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>log/device/message.txt</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- rollover daily -->
            <fileNamePattern>log/device/message-%d{yyyy-MM-dd}.%i.txt</fileNamePattern>
            <maxHistory>10</maxHistory>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <!-- or whenever the file size reaches 100MB -->
                <maxFileSize>10MB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>

        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n </pattern>
        </encoder>

	<filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>ERROR</level>  
			<onMatch>ACCEPT</onMatch>  
            <onMismatch>DENY</onMismatch>  
        </filter> 
    </appender>

    <logger name="com.dongluhitec.card.hardware" level="INFO">
        <appender-ref ref="DEVICE_MESSAGE_DEBUG"/>
    </logger>

這樣logger仍是會接收info級別的日誌,但輸出到文件時,會過濾ERROR級別如下的日誌.