Spring Sleuth，Log4j2 不同服务中的跟踪 ID 不同

Question

>我正在使用配置了弹簧侦探的微服务从服务1调用到服务2。这两个微服务具有相同的设置。我期望两个服务具有相同的跟踪 ID，但我得到的跟踪 ID 不同。每个服务中的当前输出。

登录服务1

2019-12-07T10:51:04,219 INFO [service1,1b6f2fbf64c316fc][http-nio-8090-exec-2] c.m.p.c.MyController1: An INFO Message 1

登录服务2

2019-12-07T10:51:04,976 INFO [service2,cd796e06d80b1dfd][http-nio-8091-exec-1] c.m.s.c.MyController2: An INFO Message in service 2

我只是在徘徊我在以下设置中做错了什么。 请帮忙。

控制器类

@RestController
@RequestMapping("/service1")
public class MyController1 {
static final Logger LOGGER = LogManager.getLogger(MyController.class);
@Bean
public Sampler defaultSampler() {
return Sampler.ALWAYS_SAMPLE;
}
@PostMapping("/msg")
public String processMsg(@Valid @RequestBody final String request){
LOGGER.info("An INFO Message 1");
String requestURI="http://localhost:8090/service2/call1";
HttpHeaders headers = new HttpHeaders();
RestTemplate restTemplate = new RestTemplate();
List<MediaType> acceptableMediaTypes = new ArrayList<MediaType>();
acceptableMediaTypes.add(MediaType.APPLICATION_JSON);
headers.setContentType(MediaType.APPLICATION_JSON);
headers.setAccept(acceptableMediaTypes);
HttpEntity<String> entity = new HttpEntity<String>(request, headers);
ResponseEntity<String> result = restTemplate.exchange(requestURI, HttpMethod.POST, entity, String.class);
}
}

log4j2-弹簧.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Properties>
<Property name="springAppName">${bundle:application:spring.application.name}</Property>
<Property name="sleuthInfo">${springAppName},%X{X-B3-TraceId}</Property>
</Properties>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout
pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[${sleuthInfo}][%style{%t}{bright,blue}] %style{%C{1.}}{bright,red}: %msg%n%throwable"
disableAnsi="false" />
</Console>
<RollingFile name="RollingFile"
fileName="../logs/my-logger.log"
filePattern="../logs/$${date:yyyy-MM}/my-logger-%d{-dd-MMMM-yyyy}-%i.log.gz">
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<!-- rollover on startup, daily and when the file reaches 10 MegaBytes -->
<OnStartupTriggeringPolicy />
<SizeBasedTriggeringPolicy size="10 MB" />
<TimeBasedTriggeringPolicy />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<!-- LOG everything at INFO level -->
<Root level="error">
<AppenderRef ref="Console" />
<AppenderRef ref="RollingFile" />
</Root>
<!-- LOG "com.mycompany*" at TRACE level -->
<Logger name="com.mycompany" level="trace"></Logger>
</Loggers>
</Configuration>

绒球.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.1.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.mycompany</groupId>
<artifactId>service1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>service1</name>
<description>service1 to communicate with service2</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR2</spring-cloud.version> <!-- Spring Cloud Sleuth -->
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Spring Cloud Sleuth -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<!-- In order to use log4j2 logging library other than Logback, exclude 
default logback from our dependencies -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Add log4j2 for logging -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
<version>2.2.1.RELEASE</version><!--$NO-MVN-MAN-VER$ -->
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.8.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<!-- zipkin -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/io.zipkin.brave/brave-context-log4j2 -->
<dependency>
<groupId>io.zipkin.brave</groupId>
<artifactId>brave-context-log4j2</artifactId>
<version>5.9.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

Answer 1

我发现我做错了什么(我没有使用弹簧最佳实践(。我正在发布它，并希望有人能从中受益。

错误的代码：

RestTemplate restTemplate = new RestTemplate();

正确的代码：

@Autowired
RestTemplate restTemplate;
@Bean
public RestTemplate getRestTemplate() {
return new RestTemplate();
}

我最初认为我对侦探，log4j2 做了错误的配置/依赖关系。通过上述修复程序，可以使用上面的代码来跟踪带有侦探和log4j的spring启动应用程序中的请求。

Answer 2

您正在通过new使用 RestTemplate，您需要将其用作 bean，以便 Sleuth 可以检测它。