SpringMVC中的几个模型对象

 
@RequestMapping("/testModelAndView")
 public ModelAndView testModelAndView(){
  String viewName = SUCCESS;
  ModelAndView modelAndView = new ModelAndView(viewName);
  
  //添加模型数据到 ModelAndView 中.
  modelAndView.addObject("time", new Date());  
  return modelAndView; 
 }

 
@RequestMapping("/testMap")
 public String testMap(Map<String, Object> map){
  System.out.println(map.getClass().getName()); 
  map.put("names", Arrays.asList("Tom", "Jerry", "Mike"));
  return SUCCESS;
 }

@SessionAttributes(value={"user"}, types={String.class}) 
@RequestMapping("/testSessionAttributes") 
 public String testSessionAttributes(Map<String, Object> map){
  User user = new User("Tom", "123456", "tom@atguigu.com", 15);
  map.put("user", user);
  map.put("school", "atguigu");
  return SUCCESS;
 }