ZipKin原理学习--zipkin支持日志打印追踪信息

       目前在zipkin brave已经提供功能在我们使用logback或log4j等时可以在日志信息中将traceId和spanId等信息打印到运行日志，这样可能对我们通过日志查看解决问题有比较大的帮助。

      地址：https://github.com/openzipkin/brave/tree/master/context

 

示例：

pom.xml中添加zipkin相关jar

        
	      io.zipkin.brave
	      brave-instrumentation-spring-web
	      5.4.3
	    
        
			io.zipkin.brave
			brave
			5.4.3
		
		
			io.zipkin.brave
			brave-context-slf4j
			5.4.3
		
	    
	      io.zipkin.brave
	      brave-instrumentation-spring-webmvc
	      5.4.3
	    

注入zip相关bean：

Configuration
@Import({
    TracingClientHttpRequestInterceptor.class,
    SpanCustomizingAsyncHandlerInterceptor.class
})
public class TracingConfiguration extends WebMvcConfigurerAdapter {

	
	@Bean
	public DelegatingTracingFilter getDelegatingTracingFilter() {
		return new DelegatingTracingFilter();
	}
	
  @Bean 
  Sender sender() {
	  return OkHttpSender.create("http://127.0.0.1:9411/api/v2/spans");
  }


  @Bean 
  AsyncReporter spanReporter() {
	  return AsyncReporter.create(sender());
  }

  @Bean 
  Tracing tracing(@Value("${zipkin.service:brave-webmvc-example}") String serviceName) {
	  return Tracing.newBuilder()
        .localServiceName(serviceName)
        .propagationFactory(ExtraFieldPropagation.newFactory(B3Propagation.FACTORY, "user-name"))
        .spanReporter(spanReporter()).currentTraceContext(ThreadLocalCurrentTraceContext.newBuilder()
//添加日志相关的处理器
.addScopeDecorator(MDCScopeDecorator.create()).build()).build();
  }

  @Bean 
  HttpTracing httpTracing(Tracing tracing) {
	  return HttpTracing.create(tracing);
  }

 
  
  @Autowired 
  TracingClientHttpRequestInterceptor clientInterceptor;

  @Bean
  public RestTemplate restTemplate() {
	  RestTemplate restTemplate = new RestTemplate();
	  List interceptors =new ArrayList<>(restTemplate.getInterceptors());
	  interceptors.add(clientInterceptor);
	  restTemplate.setInterceptors(interceptors);
	  return restTemplate;
  }

  @Autowired 
  SpanCustomizingAsyncHandlerInterceptor serverInterceptor;

  @Override 
  public void addInterceptors(InterceptorRegistry registry) {
	  registry.addInterceptor(serverInterceptor);
  }
}

运行日志：

    @RequestMapping("start")
    public String start(HttpServletRequest request1,HttpServletResponse response1) throws InterruptedException, IOException {

    	logger.info("start");

    	String data = restTemplate.getForObject("http://localhost:9090/foo", String.class);

    	return data;
    }

logback.xml相关配置：

主要添加这个打印格式：

logback.xml示例：

    
    ​
    
    
    ​
    

    

    
    
        
            
            INFO
        
        
            ${CONSOLE_LOG_PATTERN}
            utf8
        
    
    ​
    
        ${LOG_FILE}
        
            ${LOG_FILE}.%d{yyyy-MM-dd}.gz
            7
        
        
            ${CONSOLE_LOG_PATTERN}
            utf8
        
    
    ​
    ​
    
        
        
        
    

日志打印信息：

2018-10-20 21:24:28,656 [af49581a0f632677/af49581a0f632677] [http-nio-8080-exec-1] INFO  c.t.controller.HomeController - start

示例工程：Github