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<configuration>
<!-- 引用 Spring Boot 的 logback 基础配置 -->
<include resource="org/springframework/boot/logging/logback/defaults.xml" />
<!-- 变量 yudao.info.base-package基础业务包 -->
<springProperty scope="context" name="yudao.info.base-package" source="yudao.info.base-package"/>
<!-- 格式化输出:%d 表示日期,%X{tid} SkWalking 链路追踪编号,%thread 表示线程名,%-5level级别从左显示 5 个字符宽度,%msg日志消息%n是换行符 -->
<property name="PATTERN_DEFAULT" value="%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} | %highlight(${LOG_LEVEL_PATTERN:-%5p} ${PID:- }) | %boldYellow(%thread [%tid]) %boldGreen(%-40.40logger{39}) | %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
<!-- 控制台 Appender -->
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">     
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
<pattern>${PATTERN_DEFAULT}</pattern>
</layout>
</encoder>
</appender>
<!-- 文件 Appender -->
<!-- 参考 Spring Boot 的 file-appender.xml 编写 -->
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
<pattern>${PATTERN_DEFAULT}</pattern>
</layout>
</encoder>
<!-- 日志文件名 -->
<file>${LOG_FILE}</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<!-- 滚动后的日志文件名 -->
<fileNamePattern>${LOGBACK_ROLLINGPOLICY_FILE_NAME_PATTERN:-${LOG_FILE}.%d{yyyy-MM-dd}.%i.gz}</fileNamePattern>
<!-- 启动服务时,是否清理历史日志,一般不建议清理 -->
<cleanHistoryOnStart>${LOGBACK_ROLLINGPOLICY_CLEAN_HISTORY_ON_START:-false}</cleanHistoryOnStart>
<!-- 日志文件,到达多少容量,进行滚动 -->
<maxFileSize>${LOGBACK_ROLLINGPOLICY_MAX_FILE_SIZE:-10MB}</maxFileSize>
<!-- 日志文件的总大小0 表示不限制 -->
<totalSizeCap>${LOGBACK_ROLLINGPOLICY_TOTAL_SIZE_CAP:-0}</totalSizeCap>
<!-- 日志文件的保留天数 -->
<maxHistory>${LOGBACK_ROLLINGPOLICY_MAX_HISTORY:-30}</maxHistory>
</rollingPolicy>
</appender>
<!-- 异步写入日志,提升性能 -->
<appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender">
<!-- 不丢失日志。默认的,如果队列的 80% 已满,则会丢弃 TRACT、DEBUG、INFO 级别的日志 -->
<discardingThreshold>0</discardingThreshold>
<!-- 更改默认的队列的深度,该值会影响性能。默认值为 256 -->
<queueSize>256</queueSize>
<appender-ref ref="FILE"/>
</appender>
<!-- SkyWalking GRPC 日志收集实现日志中心。注意SkyWalking 8.4.0 版本开始支持 -->
<appender name="GRPC" class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.log.GRPCLogClientAppender">
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
<pattern>${PATTERN_DEFAULT}</pattern>
</layout>
</encoder>
</appender>
<!-- 本地环境 -->
<springProfile name="local">
<root level="INFO">
<appender-ref ref="STDOUT"/>
<appender-ref ref="GRPC"/> <!-- 本地环境下,如果不想接入 SkyWalking 日志服务,可以注释掉本行 -->
<appender-ref ref="ASYNC"/> <!-- 本地环境下,如果不想打印日志,可以注释掉本行 -->
</root>
</springProfile>
<!-- 其它环境 -->
<springProfile name="dev,test,stage,prod,default">
<root level="INFO">
<appender-ref ref="STDOUT"/>
<appender-ref ref="ASYNC"/>
<appender-ref ref="GRPC"/>
</root>
</springProfile>
</configuration>