转发和重定向

 1 @RequestMapping("/modify/{id}")
 2     public String getUserById(@PathVariable String id,Model model)
 3             throws ServletException, IOException {
 4         User user = userService.getUserById(id);
 5         model.addAttribute("user", user);
 6         return "usermodify";
 7     }
 8     
 9     @RequestMapping("/modifyexe")
10     public String modify(User user,HttpSession session)
11             throws ServletException, IOException {
12         user.setModifyBy(((User)session.getAttribute(Constants.USER_SESSION)).getId());
13         user.setModifyDate(new Date());
14         if(userService.modify(user)){
15             return "redirect:query";
16         }else{
17             return "usermodify";
18         }
19     }