Question

我是春天的新人。我有以下控制器：

1）将数据库添加到一方的简单控制器。

@Controller
@RequestMapping("/party")
@SessionAttributes()
public class PartyController {

    @RequestMapping(value = "/new", method=RequestMethod.GET)
    public ModelAndView newPartyGet(@ModelAttribute("party")
        Party party, BindingResult result) throws IOException{
        ModelAndView mav = new ModelAndView("/views/party/party_add.jsp", "party", party);
        return mav;
    }
    @RequestMapping(value = "/new", method=RequestMethod.POST)
    public String newPartyPost(@ModelAttribute("party") Party party,
        HttpServletRequest req) throws IOException{
        if (party.validate()) {
            //here is called servlet, which add party to google app engine database
            return "forward:/partyadd";
        } else {
            party.fromRequest(req);
            return "/views/party/party_add.jsp";
        }
    }

2）相同，但有比赛。

@Controller
@RequestMapping("/party/{id}/contest")
@SessionAttributes()
public class ContestController {
    @RequestMapping(value = "/new", method=RequestMethod.GET)
    public ModelAndView newContestGet(@ModelAttribute("contest")
        Contest contest, BindingResult result) throws IOException{
        ModelAndView mav = new ModelAndView("/views/contest/contest_add.jsp", "contest", contest);
        return mav;
    }
    @RequestMapping(value = "/new", method=RequestMethod.POST)
    public String newContestPost(@ModelAttribute("contest") Contest contest,
        HttpServletRequest req) throws IOException{
        if (contest.validate()) {
            //here is called servlet, which add contest to google app engine database
            return "forward:/contestadd";
        } else {
            party.fromRequest(req);
            return "/views/contest/contest_add.jsp";
        }
    }

还有更多，添加探针或参与者。

这些控制器之间的区别并不明显，所以我想编写一个带有两种方法的控制器，这些方法允许我提供这种形式。

有可能吗？

好的，我看到我没有解释我想说的太多了。

我有很多控制器，看起来都像这样：

@Controller
@SessionAttributes()
public class MyObjectController {
    @RequestMapping(value = "/new", method=RequestMethod.GET)
    public ModelAndView MyObjectGet(@ModelAttribute("myObject")
        MyObject myObject, BindingResult result) throws IOException{
        ModelAndView mav = new ModelAndView("/views/myObject_add.jsp", "myObject", myObject);
        return mav;
    }
    @RequestMapping(value = "/new", method=RequestMethod.POST)
    public String MyObjectPost(@ModelAttribute("myObject") MyObject myObject,
        HttpServletRequest req) throws IOException{
        if (myObject.validate()) {
            //here is called servlet, which add myObject to google app engine database
            return "forward:/myObjectadd";
        } else {
            myObject.fromRequest(req);
            return "/views/myObject_add.jsp";
        }
    }

其中'myObject'可以是比赛，参与者等等。通常我会为所有事情重复这段代码很多次，但我认为有更好的解决方案。

Answer 1

当然，您必须在控制器类上使用通用@RequestMapping("/party")，然后ContestController中的方法必须为

@RequestMapping(value = "/{id}/contest/new", method=RequestMethod.GET)

和

@RequestMapping(value = "/{id}/contest/new", method=RequestMethod.POST)

控制器中的参数化方法

1 个答案: