Json 将spring、hibernate应用程序中的数据公开为restful

这项工作是从这个链接衍生出来的 . 我曾尝试以json格式发布应用程序的数据，并在controller类中对其进行了进一步修改

@Controller
@RequestMapping(value="/team")
public class TeamController {

@Autowired
private TeamService teamService;

@RequestMapping(value="/add", method=RequestMethod.GET)
public ModelAndView addTeamPage() {
    ModelAndView modelAndView = new ModelAndView("add-team-form");
    modelAndView.addObject("team", new Team());
    return modelAndView;
}

@RequestMapping(value="/add", method=RequestMethod.POST)
public ModelAndView addingTeam(@ModelAttribute Team team) {

    ModelAndView modelAndView = new ModelAndView("home");
    teamService.addTeam(team);

    String message = "Team was successfully added.";
    modelAndView.addObject("message", message);

    return modelAndView;
}

@RequestMapping(value="/list")
public ModelAndView listOfTeams() {
    ModelAndView modelAndView = new ModelAndView("list-of-teams");

    List<Team> teams = teamService.getTeams();
    modelAndView.addObject("teams", teams);

    return modelAndView;
}

@RequestMapping(value="/edit/{id}", method=RequestMethod.GET)
public ModelAndView editTeamPage(@PathVariable Integer id) {
    ModelAndView modelAndView = new ModelAndView("edit-team-form");
    Team team = teamService.getTeam(id);
    modelAndView.addObject("team",team);
    return modelAndView;
}

@RequestMapping(value="/edit/{id}", method=RequestMethod.POST)
public ModelAndView edditingTeam(@ModelAttribute Team team, @PathVariable Integer id) {
    ModelAndView modelAndView = new ModelAndView("home");
    teamService.updateTeam(team);
    String message = "Team was successfully edited.";
    modelAndView.addObject("message", message);
    return modelAndView;
}

@RequestMapping(value="/delete/{id}", method=RequestMethod.GET)
public ModelAndView deleteTeam(@PathVariable Integer id) {
    ModelAndView modelAndView = new ModelAndView("home");
    teamService.deleteTeam(id);
    String message = "Team was successfully deleted.";
    modelAndView.addObject("message", message);
    return modelAndView;
}

@RequestMapping(value = "/api/team", method = RequestMethod.GET)
//    public @ResponseBody String listUsersJson (ModelMap model) throws JSONException {
    public @ResponseBody
    String listTeamJson () throws JSONException {
        JSONArray userArray = new JSONArray();
        for (Team team : teamService.getTeams()) {
            JSONObject userJSON = new JSONObject();
            userJSON.put("id", team.getId());
            userJSON.put("Name", team.getName());
            userJSON.put("Rating", team.getRating());
            userArray.put(userJSON);
        }
        return userArray.toString();
    }

}

---

但是这个代码显示错误404。如何实现应用程序以json格式发布数据？

将json代码更改为以下内容：

@RequestMapping(value = "/api/team", method = RequestMethod.GET)
    public @ResponseBody List<TEAMS_OBJECT_TYPE>listTeamJson () throws JSONException {

        return teamService.getTeams();
    }

}

注意：TEAMS\u OBJECT\u类型需要替换为teamService.getTeams返回的类型

---

@ResponseBy将自动将其转换为JSON，因此您需要做的就是在客户端正确读取它。

您能否向我们展示调用/team/api/teamreplaced TEAMS\u对象类型但不起作用的代码。我正在尝试从这个示例中学习。是否可以以相同的方式实现此应用程序？teamService.getTeams返回什么？另外，外接程序显示从何处调用/team/api/team的代码