SpringMVC 接收表单数据的方式

1.@RequestParam

     @RequestMapping(value = "/xxxx.do")
     public void create(@RequestParam(value="userName") String userName) throws Exception {  

     }  

2.@PathVariable

     @RequestMapping(value="/{groupId}.do")
     public void detail(@PathVariable long groupId){
         groupRepository.selectOne(groupId);
     }  

@ModelAttribute

     @RequestMapping(value = "/xxxx.do")
     public String create(@ModelAttribute User user) throws Exception {
         userService.insert(user);
         return "redirect:/user/create.do";
     }  

4.Request对象

     public ModelAndView method1(HttpServletRequest request,
                HttpServletResponse respnose) throws ServletException, IOException {
            Map model = new HashMap();
            model.put("message", "你调用的是方法１");
             return new ModelAndView("/index.jsp", "model", model);
      }