src/main/resources下创建一个logback-spring.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true" scan="true" scanPeriod="30 seconds">
<springProperty scope="context" name="logging.level" source="logging.level"/>
<springProperty scope="context" name="logging.path" source="logging.path"/>
<springProperty scope="context" name="logging.file" source="logging.file"/>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder
by default -->
<encoder>
<pattern>%-12(%d{yyyy-MM-dd HH:mm:ss.SSS}) |-%-5level [%thread] %c [%L] -| %msg%n</pattern>
</encoder>
</appender>
<appender name="FILE"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${logging.path}${logging.file}</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${logging.path}/server.%d{yyyy-MM-dd}.log
</fileNamePattern>
<MaxHistory>30</MaxHistory>
</rollingPolicy>
<encoder>
<pattern>%-12(%d{yyyy-MM-dd HH:mm:ss.SSS}) |-%-5level [%thread] %c [%L] -| %msg%n</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>${logging.level}</level>
</filter>
</appender>
<appender name="FILE-ERROR"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<OnMismatch>DENY</OnMismatch>
<OnMatch>ACCEPT</OnMatch>
</filter>
<File>${logging.path}error/error.log</File>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${logging.path}error/error.%d{yyyy-MM-dd}.log
</fileNamePattern>
<MaxHistory>30</MaxHistory>
</rollingPolicy>
<encoder>
<pattern>%-12(%d{yyyy-MM-dd HH:mm:ss.SSS}) |-%-5level [%thread] %c [%L] -| %msg%n</pattern>
</encoder>
</appender>
<logger name="org.springframework">
<level value="info" />
</logger>
<logger name="org.springframework.web">
<level value="info" />
</logger>
<root level="debug">
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
<appender-ref ref="FILE-ERROR" />
</root>
</configuration>

yaml里面

logging:
config: classpath:logback-spring.xml
file: server.log
path: /demo/log/