SpringBoot实现日志链路追踪的项目实践

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-aop</artifactId>
</dependency>

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.MDC;
import org.springframework.stereotype.Component;
import java.util.UUID;
@Aspect
@Component
public class LogTraceAspect {
    @Pointcut("execution(* com.example.demo.controller.*.*(..))")
    public void controllerPointcut() {
    }
    @Before("controllerPointcut()")
    public void before(JoinPoint joinPoint) {
        String traceId = UUID.randomUUID().toString().replace("-", "");
        MDC.put("traceId", traceId);
    }
    @AfterReturning("controllerPointcut()")
    public void afterReturning(JoinPoint joinPoint) {
        MDC.remove("traceId");
    }
}

<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
        <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%X{traceId}] [%thread] %-5level %logger{36} - %msg%n</pattern>
    </encoder>
</appender>

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
@Service
public class OrderService {
    private static final Logger logger = LoggerFactory.getLogger(OrderService.class);
    // 其他业务代码
    public void createOrder(Long userId, Order order) {
        // 创建订单的逻辑
        // ...
        // 记录业务操作日志，包含链路ID
        logger.info("Create order, userId: {}", userId);
    }
    // 其他业务方法
}