方法一:HttpServletRequest
方法二:Model
方法三:ModelAndView(推荐)🌟
转发
forward:页面地址
@RequestMapping("/showPage1")public String showPage1() {System.out.println("user mvc controller is running ...");return "forward:page.jsp";}
重定向
redirect:页面地址
@RequestMapping("/showPage2")public String showPage2() {System.out.println("user mvc controller is running ...");return "redirect:page.jsp";}

