logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--该日志将日志级别不同的log信息保存到不同的文件中 -->
<configuration>
	<include resource="org/springframework/boot/logging/logback/defaults.xml" />

	<springProperty scope="context" name="springAppName"
		source="spring.application.name" />

	<!-- 日志在工程中的输出位置 -->
	<property name="LOG_FILE" value="${BUILD_FOLDER:-build}/${springAppName}" />

	<!-- 控制台的日志输出样式 -->
	<property name="CONSOLE_LOG_PATTERN"
		value="%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}" />

	<!-- 控制台输出 -->
	<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
		<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
			<level>INFO</level>
		</filter>
		<!-- 日志输出编码 -->
		<encoder>
			<pattern>${CONSOLE_LOG_PATTERN}</pattern>
			<charset>utf8</charset>
		</encoder>
	</appender>

	<!-- 为logstash输出的JSON格式的Appender -->
	<appender name="logstash"
		class="ch.qos.logback.core.rolling.RollingFileAppender">
		<file>${LOG_FILE}.json</file>
		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
			<!--日志文件输出的文件名 -->
			<fileNamePattern>${LOG_FILE}.json.%d{yyyy-MM-dd}.gz</fileNamePattern>
			<!--日志文件保留天数 -->
			<MaxHistory>3</MaxHistory>
		</rollingPolicy>
		<!-- 日志输出编码 -->
		<encoder
			class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
			<providers>
				<timestamp>
					<timeZone>UTC</timeZone>
				</timestamp>
				<pattern>
					<pattern>
						{
						"severity": "%level",
						"service": "${springAppName:-}",
						"trace": "%X{X-B3-TraceId:-}",
						"span": "%X{X-B3-SpanId:-}",
						"exportable": "%X{X-Span-Export:-}",
						"pid": "${PID:-}",
						"thread": "%thread",
						"class": "%logger{40}",
						"rest": "%message"
						}
					</pattern>
				</pattern>
			</providers>
		</encoder>
	</appender>

	<!-- 日志输出级别 -->
	<root level="INFO">
		<appender-ref ref="console" />
		<appender-ref ref="logstash" />
	</root>
</configuration>