在resources目录下增加logback.xml文件

<?xml version="1.0" encoding="UTF-8"?><configuration>    <springProperty name="LOG_PATH" source="logging.path" defaultValue="/home/admin/xxx/logs" />    <!--自定义控制台日志格局-->    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">        <encoder charset="UTF-8">            <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] %level [%thread] %file:%line - %msg%n</pattern>            <charset>UTF-8</charset>        </encoder>    </appender>    <!--零碎INFO级别日志-滚动记录日志-->    <appender name="SYS_INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">        <!--被写入的文件名,能够是绝对目录,也能够是相对目录,如果下级目录不存在会主动创立,没有默认值-->        <File>${LOG_PATH}/sys_info.log</File>        <!--如果是 true,日志被追加到文件结尾,如果是 false,清空现存文件,默认是true。-->        <append>true</append>        <!--级别过滤器(LevelFilter),此处只打INFO级别的日志-->        <filter class="ch.qos.logback.classic.filter.LevelFilter">            <level>INFO</level>            <!--上面2个属性示意匹配规定level的承受打印,不匹配的(即非INFO)回绝打印-->            <onMatch>ACCEPT</onMatch>            <onMismatch>DENY</onMismatch>        </filter>        <!-- 最罕用的滚动策略,它依据工夫来制订滚动策略,既负责滚动也负责登程滚动-->        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">            <!--设置滚动文件规定,如果间接应用 %d,默认格局是 yyyy-MM-dd-->            <fileNamePattern>${LOG_PATH}/sys_info.log.%d</fileNamePattern>            <!--保留30天的日志-->            <maxHistory>30</maxHistory>        </rollingPolicy>        <encoder charset="UTF-8">            <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] %level [%thread] %file:%line - %msg%n</pattern>            <charset>UTF-8</charset>        </encoder>    </appender>    <!--零碎ERROR级别日志-滚动记录日志-->    <appender name="SYS_ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">        <File>${LOG_PATH}/sys_error.log</File>        <append>true</append>        <!--此处只打ERROR级别的日志-->        <filter class="ch.qos.logback.classic.filter.LevelFilter">            <level>ERROR</level>            <onMatch>ACCEPT</onMatch>            <onMismatch>DENY</onMismatch>        </filter>        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">            <fileNamePattern>${LOG_PATH}/sys_error.log.%d</fileNamePattern>            <maxHistory>12</maxHistory>        </rollingPolicy>        <encoder charset="UTF-8">            <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] %level [%thread] %file:%line - %msg%n</pattern>            <charset>UTF-8</charset>        </encoder>    </appender>    <!--业务business-1日志-->    <appender name="bs1_Appender" class="ch.qos.logback.core.rolling.RollingFileAppender">        <File>${LOG_PATH}/api.log</File>        <append>true</append>        <filter class="ch.qos.logback.classic.filter.LevelFilter">            <level>INFO</level>            <onMatch>ACCEPT</onMatch>            <onMismatch>DENY</onMismatch>        </filter>        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">            <fileNamePattern>${LOG_PATH}/api.log.%d</fileNamePattern>            <maxHistory>12</maxHistory>        </rollingPolicy>        <encoder charset="UTF-8">            <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] %level [%thread] %file:%line - %msg%n</pattern>            <charset>UTF-8</charset>        </encoder>    </appender>    <!-- additivity属性为false,示意此logger的打印信息不再向下级传递(注:该值默认为true,logger的日志信息会顺次向下级传递,最高级logger为root,如果不加则至多打印2次,自身一次,root一次)-->    <logger name="bs1" additivity="false" level="INFO">        <appender-ref ref="bs1_Appender"/>    </logger>    <!--info和error离开打印,注:ERROR > WARN > INFO > DEBUG > TRACE-->    <root level="INFO">        <appender-ref ref="CONSOLE"/>        <appender-ref ref="SYS_INFO"/>        <appender-ref ref="SYS_ERROR"/>    </root></configuration>

在application.yml文件中增加日志目录

logging.path=/media/data/tomcatlogs

在应用类中调用对应业务名字的logger

@Componentpublic class AService {    private final Logger log = LoggerFactory.getLogger("bs1");        public void fun1(){         log.info("{}","msg");         }        }

其中bs1就是业务的名字