jsp获取五大主要对象

获取request对象:
HttpServletRequest request=ServletActionContext.getRequest();



获取response对象    

HttpServletResponse response=ServletActionContext.getResponse();



获取session对象

HttpServletRequest request=ServletActionContext.getRequest();

HttpSession session=request.getSession();



获取上下文对象

ServletContext context=ServletActionContext.getServletContext();


获取application对象
ActionContext context=ActionContext.getContext();
Map application=context.getApplication();