pom.xml中添加引用
<dependency>
<groupId>net.logstash.logback</groupId>
<artifactId>logstash-logback-encoder</artifactId>
<version>6.1</version>
</dependency>
在resources下创建logback-spring.xml，参考内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/defaults.xml" />
<include
resource="org/springframework/boot/logging/logback/console-appender.xml" />
<appender name="FILE"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<encoder class="net.logstash.logback.encoder.LogstashEncoder">
</encoder>
<file>${LOG_PATH:-.}/${LOG_FILE}</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${LOG_FILE}.%d{yyyy-MM-dd}.%i</fileNamePattern>
<maxHistory>7</maxHistory>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>5MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<root level="INFO">
<appender-ref ref="CONSOLE" />
<appender-ref ref="FILE" />
</root>
</configuration>
