SpringMVC 任意位置获取 HttpServletRequest 对象

方法一

//获取RequestAttributes
 RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
 //从获取RequestAttributes中获取HttpServletRequest的信息
 HttpServletRequest request = (HttpServletRequest)requestAttributes.resolveReference(RequestAttributes.REFERENCE_REQUEST);

方法二

ServletRequestAttributes attributes = (ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();