如何分組請求 javax 驗證？

Question

賞金將在 6 天后到期。 此問題的答案有資格獲得+50聲望賞金。 Pierre Recuay正在從有信譽的來源尋找答案：

我知道這是一個不尋常的問題，但我會感謝您的幫助。 謝謝

我測試了 spring-boot-starter-validation 行為並注意到：首先驗證請求正文並拋出 WebExchangeBindException，然后驗證請求路徑和查詢參數並拋出 ConstraintViolationException。 那么，如何將這兩組約束加入到單個響應體中捕獲的單個異常中？

預期響應正文：

{
  "address": "must not be blank",
  "mail": "must be a well-formed email address",
  "floor": "floor cannot be null",
  "control.mark": "must be less than or equal to 5",
  "control.infect": "must be greater than 0",
  "control.age": "must be greater than or equal to 5"
}

實際請求正文字段約束：

{
  "address": "must not be blank",
  "mail": "must be a well-formed email address",
  "floor": "floor cannot be null"
}

實際查詢和路徑參數約束：

{
  "control.mark": "must be less than or equal to 5",
  "control.infect": "must be greater than 0",
  "control.age": "must be greater than or equal to 5"
}

這是一個集成測試，可以更好地理解鏈接

依賴項：

• spring-boot 2.7.2版
• spring-boot-starter-webflux
• spring-boot-starter-驗證

Answer 1

您需要使用一個統一的ConstraintViolationException異常並將所有約束收集到一組中。
可以通過@Validated(Group.class)注釋。 驗證組文檔。

1.為您的驗證組創建一個接口

public interface Group {
}

2.為您的RestController申請組

@RestController
@Validated
@Slf4j
public class BookController {

    @PostMapping(value = "/control/{age}/mark/{mark}")
    @Validated(Group.class)
    public Object control(
            @PathVariable("age")
            @Min(value = 5, groups = Group.class) Integer age,

            @PathVariable("mark")
            @Max(value = 5, groups = Group.class) Integer mark,

            @Min(value = 3, groups = Group.class) @RequestParam(name = "conclusion") Integer conclusion,

            @Positive(groups = Group.class) @RequestParam(name = "infect") Integer infect,

            @Valid
            @RequestBody Book book
    ) {

      return new Book();
    }
}

3.為您的轉賬申請組object

@Data
public class Book {

    @NotBlank(groups = Group.class)
    private String address;

    @NotNull(message = "floor cannot be null", groups = Group.class)
    private String floor;

    @Email(groups = Group.class)
    private String mail;
}

Output：

{
  "control.mark": "must be less than or equal to 5",
  "control.book.mail": "must be a well-formed email address",
  "control.infect": "must be greater than 0",
  "control.book.floor": "floor cannot be null",
  "control.book.address": "must not be blank",
  "control.age": "must be greater than or equal to 5"
}