Logback example

logback.xml

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

    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />

    <property name="LOG_PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %5p [%.15t] [%40.40logger{39}] [%mdc] %msg%wex%n"/>
    <property name="LOGS" value="./logs" />

    <appender name="TIME_BASED_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOGS}/app.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- daily rollover -->
            <fileNamePattern>${LOGS}/app.%d{yyyy-MM-dd}.log</fileNamePattern>
            <maxHistory>30</maxHistory>
        </rollingPolicy>

        <encoder>
            <pattern>${LOG_PATTERN}</pattern>
            <charset>utf8</charset>
        </encoder>
    </appender>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${LOG_PATTERN}</pattern>
            <charset>utf8</charset>
        </encoder>
    </appender>

    <root level="debug">
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="TIME_BASED_FILE" />
    </root>

</configuration>