終端中 SpringBoot REST API 的郵遞員 POST 調用不受支持的媒體類型

Question

我已經構建了一個基本的 SpringBoot REST API，當我嘗試使用 POSTMAN 添加玩家時，我在 CMD 中收到以下錯誤：

curl -X POST "Content-Type: application/json" http://localhost:8080/players -d '{"firstName": "Magnus", "lastName": "Carlsen", "email": "magnuscarlsen@gmail.com"}'
curl: (3) Port number ended with ' '
{"timestamp":"2021-11-03T16:31:33.626+00:00","status":415,"error":"Unsupported Media Type","path":"/players"}curl: (6) Could not resolve host: Magnus,
curl: (6) Could not resolve host: lastName
curl: (6) Could not resolve host: Carlsen,
curl: (6) Could not resolve host: email
curl: (3) [globbing] unmatched close brace/bracket in column 24

如果我只是這樣做：

curl localhost:8080/players

我得到一個空的 JSON 對象，以便正常工作。

控制器：

@RestController
@RequestMapping("/players")
public class PlayersController {

    private final PlayerRepository playerRepository;

    public PlayersController(PlayerRepository playerRepository) {
        this.playerRepository = playerRepository;
    }

    @GetMapping
    public List<Player> getClients() {
        return playerRepository.findAll();
    }

    @GetMapping("/{id}")
    public Player getPlayer(@PathVariable Long id) {
        return playerRepository.findById(id).orElseThrow(RuntimeException::new);
    }

    @PostMapping
    public ResponseEntity createPlayer(@RequestBody Player player) throws URISyntaxException {
        Player savedPlayer = playerRepository.save(player);
        return ResponseEntity.created(new URI("/players/" + savedPlayer.getId())).body(savedPlayer);
    }

    @PutMapping("/{id}")
    public ResponseEntity updatePlayer(@PathVariable Long id, @RequestBody Player player) {
        Player currentPlayer = playerRepository.findById(id).orElseThrow(RuntimeException::new);
        currentPlayer.setFirstName(player.getFirstName());
        currentPlayer.setFirstName(player.getLastName());
        currentPlayer.setEmail(player.getEmail());
        currentPlayer = playerRepository.save(player);

        return ResponseEntity.ok(currentPlayer);
    }

    @DeleteMapping("/{id}")
    public ResponseEntity deletePlayer(@PathVariable Long id) {
        playerRepository.deleteById(id);
        return ResponseEntity.ok().build();
    }
}

我在網上查找了這個被禁止的媒體類型錯誤，但每個解決方案都在使用某種程序，而不僅僅是在終端 CMD 中，因此任何幫助將不勝感激。 謝謝

Answer 1

在我看來，您的 curl 命令不正確。 請嘗試以下操作：

curl -X POST http://localhost:8080/players -H 'Content-Type: application/json' -d '{"firstName": "Magnus", "lastName": "Carlsen", "email": "magnuscarlsen@gmail.com"}'