struts2中获得request和session

request:

		ValueStack request = ActionContext.getContext().getValueStack();
		
		HttpServletRequest request = ServletActionContext.getRequest();
		
		HttpServletRequest request = (HttpServletRequest)ActionContext.getContext().get(ServletActionContext.HTTP_REQUEST);

 

session:

		HttpSession session = ServletActionContext.getRequest().getSession();
		
		HttpSession session = (HttpSession)ActionContext.getContext().get(ServletActionContext.SESSION);
		
		Map map = (Map)ActionContext.getContext().getSession();