如何在使用Feign builder时让Spring sleuth工作

Question

我在试着让spring slueth在我们的系统中传播追踪ids。

在检查另一个服务的日志时，我注意到生成了新的Ids。

我想这可能是因为我使用了一个伪装的构建器，而我已经在使用okHttpClient了。

我遇到了以下内容：

https://github.com/spring-cloud/spring-cloud-sleuth/issues/594

How to implement Sleuth Tracing With Feign.Builder?

我的bean设置如下：

@Configuration
@RequiredArgsConstructor
public class OkHttpConfig {

  private final Properties properties;

  @Bean
  public OkHttpClient okHttpClient() {
    return new Builder()
        .connectTimeout(properties.getHttpTimeoutMillis(), TimeUnit.MILLISECONDS)
        .readTimeout(properties.getHttpTimeoutMillis(), TimeUnit.MILLISECONDS)
        .writeTimeout(properties.getHttpTimeoutMillis(), TimeUnit.MILLISECONDS)
        .connectionPool(new ConnectionPool(properties.getHttpPoolSize(),
            properties.getHttpKeepAliveMillis(), TimeUnit.MILLISECONDS))
        .build();
  }

@Configuration
public class HttpClientConfiguration {

  @Autowired
  private Properties properties;

  @Autowired
  private Client client;

  @Bean
  public SomeClient SomeClient(Client client, ObjectMapper objectMapper {
    return feignClient(properties.getUrl(), SomeClient.class, client,
            objectMapper);
  }

  public static <T> T feignClient(String baseUrl, Class<T> clientClass,
      Client client, ObjectMapper objectMapper) {
    return Feign.builder()
        .client(client)
        .decoder(new JacksonDecoder(objectMapper))
        .encoder(new JacksonEncoder(objectMapper))
        .target(clientClass, baseUrl);
  }

我希望客户端被包装在跟踪实现中，但我一直收到以下错误

Unsatisfied dependency expressed through field 'client'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: 
No qualifying bean of type 'feign.Client' available: 
expected at least 1 bean which qualifies as autowire candidate.Dependency annotations:

使用以下版本：

Spring boot 2.1.2版本

org.springframework.cloud:spring-cloud-sleuth:2.1.0.RELEASE

Answer 1

在聊天(https://chat.stackoverflow.com/rooms/188411/discussion-between-yk-47-and-marcin-grzejszczak)中，我们已经分析了当前的设置。它缺少bean定义，最重要的是缺少open feign的spring-cloud starter。