非action层获取HttpServletRequest

1.如何在一个线程的任何地方(即其他层)获取HttpServletRequest

Ineveryrequest,the

DispatcherServlet

bindsthecurrent

HttpServletRequest

toa

staticThreadLocal

objectinthe

RequestContextHolder

.Youcanretrieveitwhenexecutingwithinthesame

Thread

with

HttpServletRequestrequest=((ServletRequestAttributes)RequestContextHolder.currentRequestAttributes()).getRequest();