logback.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration>
<configuration>
    
    <!-- properties -->
    <property name="logDir" value="logs" />
    <property name="maxHistory" value="30" />
    
    <!-- 控制台输出 ConsoleAppender -->  
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>
                <!-- %replace: 字符串替换; %caller: 方法调用栈. -->
                <!-- (\bCaller.+?(?=\()): 正则, 匹配字符串"Caller...(",不含(号 -->
                %d{HH:mm:ss.SSS} %-5level %replace(%caller{1}){'(\bCaller.+?(?=\())|\r|\n|\s*|\t', ''} - %msg  [%thread] %n 
            </Pattern>
        </layout>
    </appender>
    
    <!-- 滚动文件输出, RollingFileAppender -->
    <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!-- 日志过滤器 LevelFilter -->
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>DEBUG</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
            <!-- 只写入DEBUG级别的日志信息 -->
        </filter>
        <!-- 滚动策略 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- 以天为单位记录日志, 只保留30天 -->
            <fileNamePattern>${logDir}/%d{yyyy-MM-dd}/debug-log.log</fileNamePattern>
            <maxHistory>${maxHistory}</maxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>
    
    <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!-- 日志过滤器 ThresholdFilter -->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <!-- 只记录WARN及以上级别的日志. 即WARN, ERROR.  -->
            <level>WARN</level>
        </filter>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${logDir}/%d{yyyy-MM-dd}/warn-log.log</fileNamePattern>
            <maxHistory>${maxHistory}</maxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>
    
    <!-- 邮件日志
    <appender name="EMAIL" class="ch.qos.logback.classic.net.SMTPAppender">
        <smtpHost>smtp.host.com</smtpHost>
        <smtpPort></smtpPort> 
        <SSL>true</SSL>  
        <username>your@mail.com</username>
        <password>yourPassword</password>
        
        <to>someone@mail.com</to>
        <to>another@mail.com</to>
        <from>your@mail.com/from>
        
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%date %-5level %logger{36} - %message%n</pattern>
        </layout>   
    </appender>
    -->
    
    <!-- root, 只有在level及以上级别的日志会被输出 -->
    <!-- 例如: 当root level设置为INFO时, appender DEBUG中无法获取到DEBUG级别的日志事件, 则DEBUG日志信息也不会写入debug.log中. -->
    <root level="DEBUG">
        <appender-ref ref="STDOUT" />
        <appender-ref ref="DEBUG" />
        <appender-ref ref="WARN" />
    </root>

</configuration>