如何按顺序检查多个Spring DTO验证？

public class Step1DTO {
    @NotBlank(message = "Field1 is required")
    private String field1;

    // Getters and setters
}

public class Step2DTO {
    @NotBlank(message = "Field2 is required")
    private String field2;

    // Getters and setters
}

@GroupSequence({Step1DTO.class, Step2DTO.class})
public interface ValidationOrder {
}

@RestController
@Validated(ValidationOrder.class)
public class MyController {
    @PostMapping("/validate")
    public ResponseEntity<String> validateDTOs(@RequestBody Step2DTO step2DTO) {
        // Handle the request
    }
}