Spring Cloud Sleuth-tracer.getTrentSpan（）. getTraceId（）不返回日志中的traceid

Question

当我打印traceId时，我得到514775860170850477，但是在日志中，跟踪id是724d9eadc6e00ad。知道这里会发生什么吗？

我的pom

    <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.2.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<dependencyManagement> 
  <dependencies>
      <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-dependencies</artifactId>
          <version>Brixton.RELEASE</version>
          <type>pom</type>
          <scope>import</scope>
      </dependency>
  </dependencies>
 </dependencyManagement>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>

我如何打印痕迹

     import org.slf4j.Logger;
     import org.slf4j.LoggerFactory;
   import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.cloud.sleuth.Tracer;
   import org.springframework.stereotype.Service;

@Service
public class ValidationService{

private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
private Tracer tracer;

public void someMethod(){

         System.out.println(tracer.getCurrentSpan().getTraceId());
    logger.info("ValidationService someMethodEntered " +);

}}

Answer 1

tracer.currentSpan（）.context（）.traceIdString（）