spring Controller中保存的session 如何在services层中获取到呢

Question

spring Controller中保存的session 如何在services层中获取到呢  目前测试要么保存在controller中 只能在controller中获取到  要么保存在services中 只能在services中获取到 

Answer 1

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