1：添加maven依赖
<!-- https://mvnrepository.com/artifact/org.apache.skywalking/apm-toolkit-trace -->
<!-- 该引用用于代码获取tranceId -->
<dependency>
<groupId>org.apache.skywalking</groupId>
<artifactId>apm-toolkit-trace</artifactId>
<version>8.12.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.skywalking/apm-toolkit-logback-1.x -->
<!-- 该引用用于logback获取tranceId,也就是tid -->
<dependency>
<groupId>org.apache.skywalking</groupId>
<artifactId>apm-toolkit-logback-1.x</artifactId>
<version>8.12.0</version>
</dependency>
2：修改logback-spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
~ Copyright (c) 2020 pig4cloud Authors. All Rights Reserved.
~
~ Licensed under the Apache License, Version 2.0 (the "License");
~ you may not use this file except in compliance with the License.
~ You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing, software
~ distributed under the License is distributed on an "AS IS" BASIS,
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
~ See the License for the specific language governing permissions and
~ limitations under the License.
-->
<configuration debug="false" scan="false">
<springProperty scop="context" name="spring.application.name" source="spring.application.name" defaultValue=""/>
<property name="log.path" value="logs/${spring.application.name}"/>
<!-- 彩色日志格式 -->
<property name="CONSOLE_LOG_PATTERN"
value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %file:%line %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
<!-- 彩色日志依赖的渲染类 -->
<property name="FILE_LOG_PATTERN"
value="%date [%thread] ${LOG_LEVEL_PATTERN:-%5p} [%logger{50}] %file:%line - %msg%n"/>
<conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter"/>
<conversionRule conversionWord="wex"
converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter"/>
<conversionRule conversionWord="wEx"
converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter"/>
<!-- Console log output -->
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${CONSOLE_LOG_PATTERN}</pattern>
</encoder>
</appender>
<!-- Log file debug output -->
<!-- <appender name="debug" class="ch.qos.logback.core.rolling.RollingFileAppender">-->
<!-- <file>${log.path}/debug.log</file>-->
<!-- <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">-->
<!-- <fileNamePattern>${log.path}/%d{yyyy-MM, aux}/debug.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>-->
<!-- <maxFileSize>50MB</maxFileSize>-->
<!-- <maxHistory>30</maxHistory>-->
<!-- </rollingPolicy>-->
<!-- <encoder>-->
<!-- <pattern>%date [%thread] %-5level [%logger{50}] %file:%line - %msg%n</pattern>-->
<!-- </encoder>-->
<!-- </appender>-->
<appender name="debug" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${log.path}/debug.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>${log.path}/%d{yyyy-MM, aux}/debug.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<maxFileSize>50MB</maxFileSize>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${FILE_LOG_PATTERN}</pattern>
</encoder>
</appender>
<!-- Log file error output -->
<appender name="error" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${log.path}/error.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>${log.path}/%d{yyyy-MM}/error.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
<maxFileSize>50MB</maxFileSize>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${FILE_LOG_PATTERN}</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>ERROR</level>
</filter>
</appender>
<!--格式化输出：%d表示日期，%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="log.pattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] ${LOG_LEVEL_PATTERN:-%5p} %-5level %logger{50} - [%tid] - %msg%n"/>
<appender name="msystem-log" class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.log.GRPCLogClientAppender">
<!-- 日志输出编码 -->
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
<!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
<pattern>${log.pattern}</pattern>
</layout>
</encoder>
</appender>
<!--nacos 心跳 INFO 屏蔽-->
<logger name="com.alibaba.nacos" level="OFF">
<appender-ref ref="error"/>
</logger>
<!-- Level: FATAL 0 ERROR 3 WARN 4 INFO 6 DEBUG 7 -->
<root level="INFO">
<appender-ref ref="console"/>
<appender-ref ref="debug"/>
<appender-ref ref="error"/>
<appender-ref ref="msystem-log"/>
</root>
</configuration>
3 vm参数
-javaagent:D:\download\apache-skywalking-java-agent-8.12.0\skywalking-agent\skywalking-agent.jar
-Dskywalking.collector.backend_service=127.0.0.1:11800 -DSW_AGENT_NAME=my-app
Java 启动脚本
# SkyWalking Agent 配置
export SW_AGENT_NAME=my-app # 配置 Agent 名字。一般来说，我们直接使用 Spring Boot 项目的 `spring.application.name` 。
export SW_AGENT_COLLECTOR_BACKEND_SERVICES=127.0.0.1:11800 # 配置 Collector 地址。
export SW_AGENT_SPAN_LIMIT=2000 # 配置链路的最大 Span 数量。一般情况下，不需要配置，默认为 300 。主要考虑，有些新上 SkyWalking Agent 的项目，代码可能比较糟糕。
export JAVA_AGENT=-javaagent:D:\download\apache-skywalking-java-agent-8.12.0\skywalking-agent\skywalking-agent.jar # SkyWalking Agent jar 地址。
# Jar 启动
java -jar $JAVA_AGENT -jar my-app.jar
代码获取 TranceId：
String traceId = TraceContext.traceId();
