Logback日志配置两种方式

SpringBoot 默认使用的是Logback

1. 在resource新建文件logback-spring.xml，配置日志相关信息

<configuration>
    <property name="app.name" value="order-service"/>

    <property name="log.path" value="./logs/" />

    <!-- 设置日志级别 -->
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>
    <!-- 配置文件输出 -->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log.path}/${app.name}.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log.path}/${app.name}.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
            <!--日志文件保留天数-->
            <maxHistory>7</maxHistory>
            <TimeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <!--日志文件最大的大小-->
                <maxFileSize>1MB</maxFileSize>
            </TimeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>
        <encoder>
            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <!-- 设置根logger -->
    <root level="INFO">
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
    </root>
    <!-- 设置特定包的日志级别 -->
    <logger name="com.beiyou" level="DEBUG" />
</configuration>

结果：

2. 直接在application.properties（yml也可）中配置（推荐）

#日志配置
logging.level.root=error
logging.level.com.beiyou=debug
# Console Appender
logging.pattern.console=${spring.application.name} %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %clr(%-5level) %green(%logger{36}) --- %msg%n
# File Appender
logging.file.name=./logs/${spring.application.name}.log
logging.pattern.file=${spring.application.name} [%date] %level [%thread] %logger{36} [%file:%line] %msg%n
logging.file.max-size = 1MB
logging.file.max-history = 7