@RequestMapping(value="/update/{id}",method=RequestMethod.GET)
public String update(@PathVariable int id,Model model) {
...
}
@RequestMapping(value="/update/{id}",method=RequestMethod.POST)
public String update(@PathVariable int id,@Valid UserDto userDto,BindingResult br,Model model) {
...
}
method=RequestMethod.GET
method=RequestMethod.POST
get请求判断