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);  
     }