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蚊惶掣俾1、pom.xml 依赖

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org.springframework.boot

spring-boot-starter-web

org.springframework.boot

spring-boot-starter-test

test

org.springframework.boot

spring-boot-starter-logging

org.projectlombok

lombok

1.16.10

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2、整合logback，打印日志，logback.xml (日志配置文件)

关键代码：[traceId:%X{traceId}]，traceId是通过拦截器里MDC.put(traceId, tid)添加。

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[traceId:%X{traceId}] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n

${log}/%d{yyyy-MM-dd}.log

30

[traceId:%X{traceId}] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n

10MB

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3、application.yml指定logback.xml配置目录

logging:

config: classpath:logback.xml

4、异步线程的跟踪ID链路追踪

业务逻辑是基于线程数据的传递进行处理，主线程传递线程ID到子线程。处理方式：重写线程池的execute（*）、submit（*）方法。

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public final class MyThreadPoolTaskExecutor extends ThreadPoolTaskExecutor {

public MyThreadPoolTaskExecutor() {

super();

}

@Override

public void execute(Runnable task) {

super.execute(TraceIdUtil.wrap(task, MDC.getCopyOfContextMap()));

}

@Override

public Future submit(Callable task) {

return super.submit(TraceIdUtil.wrap(task, MDC.getCopyOfContextMap()));

}

@Override

public Future submit(Runnable task) {

return super.submit(TraceIdUtil.wrap(task, MDC.getCopyOfContextMap()));

}

}

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4、异步定时任务线程接口ScheduledExecutorService的日志链路追踪。在执行前，执行后进行跟踪ID的生成和删除。

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@Bean(name = "scheduledExecutorService")

protected ScheduledExecutorService scheduledExecutorService() {

return new ScheduledThreadPoolExecutor(corePoolSize,

new BasicThreadFactory.Builder().namingPattern("schedule-pool-%d").daemon(true).build(),

new ThreadPoolExecutor.CallerRunsPolicy()) {

@Override

protected void beforeExecute(Thread thread, Runnable runnable) {

super.beforeExecute(thread, runnable);

// 为定时任务生成一个 traceId

TraceIdUtil.setTraceId();

// 可选：添加任务标识

System.out.println("Scheduled task starting with traceId: " + TraceIdUtil.getTraceId());

}

@Override

protected void afterExecute(Runnable r, Throwable t) {

super.afterExecute(r, t);

Threads.printException(r, t);

TraceIdUtil.remove();

}

};

}