1.引入skywalking的jar包,导入的包和agent版本一致

        <dependency>
            <groupId>org.apache.skywalking</groupId>
            <artifactId>apm-toolkit-trace</artifactId>
            <version>8.12.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.skywalking</groupId>
            <artifactId>apm-toolkit-opentracing</artifactId>
            <version>8.12.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.skywalking</groupId>
            <artifactId>apm-toolkit-logback-1.x</artifactId>
            <version>8.12.0</version>
        </dependency>

2.修改logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds" debug="false">
    <statusListener class="ch.qos.logback.core.status.NopStatusListener" />
    <!-- 日志存放路径 -->
    <property name="log.path" value="logs" />
 
    <!-- 日志输出格式 -->
    <property name="log.pattern"
              value="%d{HH:mm:ss.SSS} [%thread] %-5level %logger{20} %tid - [%method,%line] - %msg%n"/>:ss} %-5level
    ${springAppName:-} %thread %logger %msg%n"/>
 
    <!-- 控制台输出 -->
    <appender name="console" 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>${log.pattern}</pattern>
            </layout>
        </encoder>
    </appender>
 
    <!-- 系统日志输出 -->
    <appender name="file_info" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log.path}/info.log</file>
        <!-- 循环政策：基于时间创建日志文件 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!-- 日志文件名格式 -->
            <fileNamePattern>${log.path}/info.%d{yyyy-MM-dd}-%i.log</fileNamePattern>
            <!-- 日志最大的历史 3天 -->
            <maxHistory>3</maxHistory>
            <!--单个日志文件的最大体积-->
            <maxFileSize>100MB</maxFileSize>
            <!--控制所有归档日志文件的总大小-->
            <totalSizeCap>200MB</totalSizeCap>
            <!--是否在应用启动的时候删除历史日志-->
            <cleanHistoryOnStart>true</cleanHistoryOnStart>
        </rollingPolicy>
        <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
            <layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
                <pattern>${log.pattern}</pattern>
            </layout>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <!-- 过滤的级别 -->
            <level>info</level>
            <!-- 匹配时的操作：接收（记录） -->
            <onMatch>ACCEPT</onMatch>
            <!-- 不匹配时的操作：拒绝（不记录） -->
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
 
    <appender name="file_error" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log.path}/error.log</file>
        <!-- 循环政策：基于时间创建日志文件 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!-- 日志文件名格式 -->
            <fileNamePattern>${log.path}/error.%d{yyyy-MM-dd}-%i.log</fileNamePattern>
            <!-- 日志最大的历史 1天 -->
            <maxHistory>3</maxHistory>
            <!--单个日志文件的最大体积-->
            <maxFileSize>100MB</maxFileSize>
            <!--控制所有归档日志文件的总大小-->
            <totalSizeCap>200MB</totalSizeCap>
            <!--是否在应用启动的时候删除历史日志-->
            <cleanHistoryOnStart>true</cleanHistoryOnStart>
        </rollingPolicy>
        <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
            <layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
                <pattern>${log.pattern}</pattern>
            </layout>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <!-- 过滤的级别 -->
            <level>error</level>
            <!-- 匹配时的操作：接收（记录） -->
            <onMatch>ACCEPT</onMatch>
            <!-- 不匹配时的操作：拒绝（不记录） -->
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
 
    <!-- 日志传输到skywalking中的appender，通过qrpc传输 -->
    <appender name="gpc-log" 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.mdc.TraceIdMDCPatternLogbackLayout">
                <Pattern>${log.pattern}</Pattern>
            </layout>
        </encoder>
    </appender>
 
    <!--系统操作日志-->
    <root level="info">
        <appender-ref ref="file_info"/>
        <appender-ref ref="file_error"/>
        <appender-ref ref="console"/>
        <appender-ref ref="gpc-log" />
    </root>
 
</configuration>

看到日志打印出TID则表示配置成功

3.自定义标签快速定位异常

    private final Tracer tracer = new SkywalkingTracer();
 
    private void setSkywalkingTagErrMsg(String msg, String code) {
        ActiveSpan span = tracer.activeSpan();
        span.setTag("error.msg", msg);
        span.setTag("error.code", code);
    }