我已经被这个问题困扰了2天，基本上，我的userrequest类中有4个属性，我正在运行我的post请求到usercontroller类中的createuser函数，在我尝试向userrequest类添加一个新属性“age”之前，一切都运行得很好，但问题是，请求到达时仍然只有我最初拥有的四个属性，然后当我试图从userrequest中删除四个属性中的一个时，我仍然在createuser函数中接收它
用户请求.java

public class UserRequest {

    @NotNull
    @Size(min = 3)
    private String firstName;

    @NotNull
    @Size(min = 3)
    private String lastName;

    @NotNull
    @Email
    private String email;

    @NotNull
    @Size(min = 8)
    private String password;

    @NotNull
    private String age;
//....getters and setters

用户控制器.java

@RestController 
@RequestMapping("/users")
public class UserController {
@PostMapping
    public ResponseEntity<Object> createUser(@RequestBody @Valid UserRequest userRequest) throws Exception {

        System.out.println(userRequest);

        if(userRequest.getFirstName().isEmpty() ) throw new UserException(ErrorMessages.MISSING_REQUIRED_FIELD.getErrorMessage());

        //UserDto userDto = new UserDto();

        ModelMapper modelMapper = new ModelMapper();
        UserDto userDto = modelMapper.map(userRequest, UserDto.class);

        //BeanUtils.copyProperties(userRequest, userDto); //couche presentation 

        UserDto createUser = userService.createUser(userDto); //Appel au service

        //UserResponse userResponse = new UserResponse();
        UserResponse userResponse = modelMapper.map(createUser, UserResponse.class);
        //BeanUtils.copyProperties(createUser, userResponse); //Copier vers la reponse

        return new ResponseEntity<>(userResponse,HttpStatus.CREATED) ; 
    }

失眠症后处理请求

{
    "firstName" : "outiti",
    "lastName" : "ayoub",
    "email" : "outiti@gmail.com",
    "password" : "12345678",
    "age" : "15"
}

请求正文接收