通过HttpServletRequest.getSession()
获取会话和在控制器方法中注入HttpSession
之间有什么区别吗?
Basically there is no diffrerence between the session
object injected into a Spring MVC controller:
@RequestMapping(value = "/somepath", method = RequestMethod.POST)
@ResponseBody
public JsonResponse someMethod (HttpSession session)
{
// play with session attributes
}
And the session
object retrieved from the HttpServletRequest
:
@RequestMapping(value = "/somepath", method = RequestMethod.POST)
@ResponseBody
public JsonResponse someMethod (HttpServletRequest request)
{
Session session = request.getSession();
// You are playin with the same session attributes.
}
The former style just provide you with a facility to get the contextual HttpSession
object by injecting it as a controller argument so that Spring takes care of the all the dirty stuff for you.
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