手写链路追踪优化-多线程追踪

1. 前文回顾和优化需求分析

前面两篇文章已经让《手写链路追踪》略有小成
前文1：手写链路追踪
前文2：手写链路追踪优化-自动全局追踪代替局部手动追踪
有没有想过，如果多线程环境，它能追踪异步线程日志吗？接下来我们先验证多线程的情况。

1.1 添加多线程测试代码

增加异步配置

package com.sandwich.logtracing.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.lang.NonNull;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;

/**
 * @Author 公众号： IT三明治
 * @Date 2025/8/30
 * @Description: the config for async task
 */
@Configuration
@EnableAsync
public class AsyncConfiguration implements AsyncConfigurer {
   
   
            

    @Override
    @NonNull
    public Executor getAsyncExecutor() {
   
   
            
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.setMaxPoolSize(10);
        executor.setQueueCapacity(100);
        executor.setThreadNamePrefix("async-thread-");
        executor.initialize();
        return executor;
    }
}

增加登录的异步接口和同步接口

package com.sandwich.logtracing.service;

/**
 * @Author 公众号： IT三明治
 * @Date 2025/8/30
 * @Description:
 */
public interface LoginService {
   
   
            
    void asyncLoginSteps(String username) throws InterruptedException;

    void blockedThreadLoginSteps(String username) throws InterruptedException;
}

增加登录的异步接口和同步接口的实现

package com.sandwich.logtracing.service.impl;

import com.sandwich.logtracing.service.LoginService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

/**
 * @Author 公众号： IT三明治
 * @Date 2025/8/30
 * @Description:
 */
@Slf4j
@Service
public class LoginServiceImpl implements LoginService {
   
   
            

    @Override
    @Async
    public void asyncLoginSteps(String username) throws InterruptedException