Spring-boot-每个级别的日志文件的应用程序属性配置

Question

I'm trying to get separate log file based on log levels, for eg. separate file for debug, info, error

My current configuration in application.properties file only keeps in single file, per date

logging.file=myservice-%d{yyyyMMdd}.log
logging.level.org.springframework.boot=DEBUG
logging.level.org.springframework.web=DEBUG

I want separate log files created as

• myservice-info-20190516.log
• myservice-debug-20190516.log
• myservice-error-20190516.log

Answer 1

You can easily do that with Logback . You can create different appenders for each log level and you're done.

Answer 2

Using the recommended and default implementation Logback of the SLF4J façade, you need to configure appender for each level of the log.

<appender name="debugAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>debug.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>debug-%d{yyyy-MM-dd_HH}.log</fileNamePattern>
    </rollingPolicy>
</appender> 

<appender name="infoAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>info.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>info-%d{yyyy-MM-dd_HH}.log</fileNamePattern>
    </rollingPolicy>
</appender> 

<appender name="errorAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>error.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>error-%d{yyyy-MM-dd_HH}.log</fileNamePattern>
    </rollingPolicy>
</appender> 

And attach them to the logger distinguished by the level:

<logger name="com.bla" level="DEBUG" additivity="true">
    <appender-ref ref="debugAppender"/>
</logger>

<logger name="com.bla" level="INFO" additivity="true">
    <appender-ref ref="infoAppender"/>
</logger>

<logger name="com.bla" level="ERROR" additivity="true">
    <appender-ref ref="errorAppender"/>
</logger>