spring-cloud-sleuth 2.0.0.RELEASE 使用

导入依赖

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>

日志

<configuration>
    <!-- TraceId:%X{X-B3-TraceId:-} SpanId：%X{X-B3-SpanId:-}-->
    <property name="CONSOLE_LOG_PATTERN"
              value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level [traceId= %X{X-B3-TraceId:-}] [SpanId= %X{X-B3-SpanId:-}] %logger{5} - %msg%n"/>

    <appender name="rollingAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/billmanager.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>/logs/heuristic-%d{yyyy-MM-dd}.log</fileNamePattern>
            <maxHistory>30</maxHistory>
        </rollingPolicy>
        <!-- 必须指定，否则不会往文件输出内容 -->
        <encoder>
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            <charset>utf8</charset>
        </encoder>
        <append>false</append>
        <prudent>false</prudent>
    </appender>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            <charset>utf8</charset>
        </encoder>
    </appender>


    <root level="info">
        <appender-ref ref="STDOUT"/>
        <appender-ref ref="rollingAppender"/>
    </root>
   

</configuration>

获取当前的traceId

import brave.Tracer;

@Service
public class Breadcrumb {

  @Autowired
  private Tracer tracer;

  public String breadcrumbId() {
    return tracer.currentSpan().context().traceIdString();
  }
}