Java Spring：如何使用@RequestBody来发布JSON对象

Question

我正在创建一个API，该API接收以下输入，并提供以下输出。

我已经为“新”创建了一种工作方法：

@RequestMapping(value = "/new", method = RequestMethod.GET)
public StartedGame startGame(HttpSession session){
    List<Game> games = getCurrentGames(session);
    Game newGame = new Game(wordList);
    games.add(newGame);
    return new StartedGame(newGame);
}

它返回以下JSON：

{
    "gameId": "kvmuyw",
    "word": "_______"
}

但是，我需要创建一个进行猜测的函数。 我还没有运气。 我将此作为我的函数标头，但是它似乎不正确...

@RequestMapping(value = "/guess", method = RequestMethod.POST, consumes = "application/json", produces = "application/json")
public Game makeGuess(@RequestBody String json, HttpSession session) 

Answer 1

您可能想要类似

@RequestMapping(value = "/guess", method = RequestMethod.POST,
   consumes = "application/json", produces = "application/json")
public Game makeGuess(@RequestBody Guess guess){
  // ..
}

@Data // <- this assuming you're using Lombok - add required accessors if not
public class Guess {
  String game;
  String guess;
}

但是，如果您收到404 Not Found ，则问题不在于方法定义，而在于您发布到错误的URL。