环境:
springboot + spring-cloud-starter-sleuth + logback
logback.xml示例:
<?xml version="1.0" encoding="UTF-8"?> <configuration scan="true" scanPeriod="10 seconds"> <!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径--> <property name="LOG_HOME" value="./log" /> <property name="APP_NAME" value="boot" /> <!-- 控制台输出 --> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d{HH:mm:ss.SSS} [%X{traceId}-%X{X-B3-TraceId}] [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> </appender> <root level="INFO"> <appender-ref ref="STDOUT" /> </root> <!-- 按照每天生成日志文件 --> <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <FileNamePattern>${LOG_HOME}/%d{yyyy-MM-dd}/${APP_NAME}.%d{yyyy-MM-dd}.log</FileNamePattern> <MaxHistory>1</MaxHistory> </rollingPolicy> <encoder> <pattern>%d{HH:mm:ss.SSS} [%X{traceId}-%X{X-B3-TraceId}] [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> </appender> <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender"> <appender-ref ref="FILE" /> <queueSize>512</queueSize> <discardingThreshold>0</discardingThreshold> </appender> <logger name="com.boot.core" level="info"> <appender-ref ref="ASYNC" /> </logger> <appender name="VISIT_LOG" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <FileNamePattern>${LOG_HOME}/%d{yyyy-MM-dd}/${APP_NAME}.%d{yyyy-MM-dd}.visit.log</FileNamePattern> <MaxHistory>1</MaxHistory> </rollingPolicy> <encoder> <pattern>%d{HH:mm:ss.SSS} [%X{traceId}-%X{X-B3-TraceId}] [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> </appender> <appender name="VISIT_ASYNC" class="ch.qos.logback.classic.AsyncAppender"> <appender-ref ref="VISIT_LOG" /> <queueSize>512</queueSize> <discardingThreshold>0</discardingThreshold> </appender> <logger name="com.boot.code" level="info"> <appender-ref ref="VISIT_ASYNC" /> </logger> </configuration>
上面截图代码中logger标签中name属性可以包路径也可以是类路径,如果是包路径把该包下的所有打印的日志放到箭头所指的文件中,如果是类的全路径亦然。
其中的[%X{traceId}-%X{X-B3-TraceId}] 为链路追踪号:
代码参考:https://github.com/Pinshuducha/boot