SpringBoot learning - 9, Slf4j log

In a previous study

Notes by drawing red line, you can log in below log.debug output directly to the console, but in the debug log file written not so smooth, looking for N configurations, the following method is feasible

First, make sure that has been introduced lombok and plug-ins

1, the configuration file in the directory Resource follows logback-spring.xml

<? XML Version = "1.0" encoding = "UTF-. 8" ?> 
< Configuration   Scan = "to true" scanPeriod = "10 seconds The" > 

    < contextName can > the logback </ contextName can > 


    <-! Format Output:% date indicates date,% thread indicates that the thread name,% - 5level: level 5 show left character width% msg: log messages,% n newline -> 
    < Property name = "LOG_PATTERN" value = "{% dATE HH: mm : ss.SSS} [Thread%]% {36} Logger -5level% -%% n-MSG "  /> 

    ! <- defined log storage path, not the relative path configuration -> 
    < Property name =" the FILE_PATH " value= "D:. /Log/spring-log.%d the MM-dd-YYYY {}% i.log"  /> 

    ! <- console output log -> 
    < the appender name = "Console" class = "CH .qos.logback.core.ConsoleAppender " > 
        <-! log level INFO the filter -> 
        < filter class =" ch.qos.logback.classic.filter.ThresholdFilter " > 
            < level > INFO </ level > 
        </ filter > 
        < Encoder > 
            <-! according to the above configuration LOG_PATTERN print log -> 
            < pattern >${LOG_PATTERN}</pattern> 
        </ Encoder > 
    </ appender > 

    <-! Generate a log file every day, for 30 days of log files. rollingFile for segmentation file -> 
    < the appender name = "rollingFile" class = "ch.qos.logback.core.rolling.RollingFileAppender" > 

        < rollingPolicy class = "ch.qos.logback.core.rolling.TimeBasedRollingPolicy" > 

            < fileNamePattern > $ {} the FILE_PATH </ fileNamePattern > 

            <-! Keep 15 Days' Worth of History -> 
            < maxHistory > 30 <

            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <!-- 日志文件的最大大小 -->
                <maxFileSize>2MB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>

            <!-- 超出删除老文件 -->
            <totalSizeCap>1GB</totalSizeCap>
        </rollingPolicy>

        <encoder>
            <pattern>${LOG_PATTERN}</pattern>
        </encoder>
    </appender>

    <!-- project default level -->
    <logger name="net.sh.rgface.serive" level="ERROR" />

    <!-- 日志输出级别 -->
    <root level="INFO">
        <appender-ref ref="console" />
        <appender-ref ref="rollingFile" />
    </root>
</configuration>

2, the output file, write files prove successful

3、参考地址：https://blog.csdn.net/InnovationAD/article/details/80895508

SpringBoot learning - 9, Slf4j log

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