多线程异步操作导致异步线程获取不到主线程的request信息

org.springframework.web.context.request.RequestContextHolder
org.springframework.web.context.request.RequestAttributes
org.springframework.web.context.request.ServletRequestAttributes

开启新线程之前，添加代码：

// 将RequestAttributes对象设置为子线程共享
ServletRequestAttributes sra = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
RequestContextHolder.setRequestAttributes(sra, true);

原文：https://www.cnblogs.com/chcha1/p/13204234.html