多线程运行任务时如何在日志中记录上下文

import java.util.HashMap;
import java.util.Map;

public class LogContext {
    private static final ThreadLocal<Map<String, String>> contextHolder = ThreadLocal.withInitial(HashMap::new);

    public static void set(String key, String value) {
        contextHolder.get().put(key, value);
    }

    public static String get(String key) {
        return contextHolder.get().get(key);
    }

    public static void clear() {
        contextHolder.remove();
    }
}

public class Task implements Runnable {
    private final Map<String, String> context;

    public Task(Map<String, String> context) {
        this.context = new HashMap<>(context);
    }

    @Override
    public void run() {
        try {
            // 执行任务
        } finally {
            LogContext.clear();
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Map<String, String> context = new HashMap<>();
        context.put("requestId", "12345");
        Task task = new Task(context);
        Thread thread = new Thread(task);
        thread.start();
    }
}

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;

public class Task implements Runnable {
    private static final Logger logger = LoggerFactory.getLogger(Task.class);

    @Override
    public void run() {
        MDC.put("requestId", "12345");
        try {
            // 执行任务
            logger.info("Task is running");
        } finally {
            MDC.remove("requestId");
        }
    }
}