Java 线程池将数据从主线程传到子线程

1、该方法是将原有的slf4j里面的MDC缓存和Spring里面的RequestContextHolder缓存设置到子线程里面去，同时没有对旧的线程池代码没有任何改动，只对旧的线程池的功能做增强，不做修改，同理可将其它自定义的缓存也同步传到子线程中去

 
 
import cn.hutool.core.thread.ThreadUtil;
import org.slf4j.MDC;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
 
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.Future;
 
public class ThreadUtilDecorator {
 
    public static void execute(Runnable runnable) {
        Map map=MDC.getCopyOfContextMap();
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        ThreadUtil.execute(()->{
            try {
                MDC.setContextMap(map);
                RequestContextHolder.setRequestAttributes(requestAttributes);
                runnable.run();
            } finally {
                MDC.clear();
                RequestContextHolder.resetRequestAttributes();
            }
        });
    }
 
    public static  Future execAsync(Callable task) {
        Map map=MDC.getCopyOfContextMap();
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        return ThreadUtil.execAsync(()->{
            try {
                MDC.setContextMap(map);
                RequestContextHolder.setRequestAttributes(requestAttributes);
                return task.call();
            } finally {
                MDC.clear();
                RequestContextHolder.resetRequestAttributes();
            }
        });
    }
 
}