public class UserDto {

    private String username;
    @JsonIgnore
    private String password;

}

{
 "username": "test12",
}

{
 "username": "test1225",
 "password": "admin",
}


@RequestMapping(value = "/addAccount", method = RequestMethod.POST)
    public ResponseEntity<Void> addAccount(@RequestBody UserDto userDto) {
        User user = new User();
        user.setUsername(userDto.getUsername());
        user.setPassword(userDto.getPassword());

        userService.saveUser(user);
        return new ResponseEntity<Void>(HttpStatus.CREATED);
    }

@JsonIgnore
public String getPassword() {
    return password;
}