/**
   * 修改
   */
  @RequestMapping("/update")
  public R update(@Valid @RequestBody AttrGroupEntity attrGroup){
    attrGroupService.updateById(attrGroup);

    return R.ok();
  }

/**
 * 新增業(yè)務(wù)分組校驗 - 不需要實現(xiàn)任何業(yè)務(wù)，只是用來標(biāo)識身份
 */
public interface AddGroup {
}

/**
 * 修改業(yè)務(wù)分組校驗 - 不需要實現(xiàn)任何業(yè)務(wù)，只是用來標(biāo)識身份
 */
public interface UpdateGroup {
}

	/**
	 * 品牌id
	 */
	@NotNull(message = "修改必須提交品牌id", groups = {UpdateGroup.class})
	@Null(message = "新增不需要提交品牌id", groups = {AddGroup.class})
	@TableId
	private Long brandId;
	/**
	 * 品牌名
	 */
	@NotBlank(message = "品牌名不可為空", groups = {AddGroup.class, UpdateGroup.class})
	private String name;
	/**
	 * 品牌logo地址
	 */
	@NotBlank(message = "logo必須提交", groups = {AddGroup.class})
	@URL(message = "logo地址格式錯誤", groups = {AddGroup.class, UpdateGroup.class})
	private String logo;
	/**
	 * 介紹
	 */
	private String descript;
	/**
	 * 顯示狀態(tài)[0-不顯示；1-顯示]
	 */
	private Integer showStatus;
	/**
	 * 檢索首字母
	 */
	@NotNull(message = "首字母必須提交", groups = {AddGroup.class})
	@Pattern(message = "首字母必須是一個字母，且a-z或A-Z", regexp = "/^[a-zA-Z]$/", groups = {AddGroup.class, UpdateGroup.class})
	private String firstLetter;
	/**
	 * 排序
	 */
	@Min(value = 0, groups = {AddGroup.class, UpdateGroup.class})
	private Integer sort;

/**
   * 保存 - 使用添加分組校驗接口參數(shù)對象的字段
   */
  @RequestMapping("/save")
  public R save(@Validated(value = {AddGroup.class}) @RequestBody BrandEntity brand){
		brandService.save(brand);

    return R.ok();
  }

/**
   * 修改 - 使用修改分組校驗接口參數(shù)對象的字段
   */
  @RequestMapping("/update")
  public R update(@Validated(value = UpdateGroup.class) @RequestBody BrandEntity brand){
		brandService.updateById(brand);

    return R.ok();
  }

<dependency>
  <groupId>javax.validation</groupId>
  <artifactId>validation-api</artifactId>
  <version>2.0.1.Final</version>
</dependency>

/**
 * 自定義校驗注解
 * @author mashanghaoyun
 * @date 2020/8/3115:01
 */
@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE})
@Retention(RUNTIME)
@Documented
@Constraint(validatedBy = {})
public @interface ListValue {

  String message() default "{com.mashanghaoyun.common.valid.ListValue.message}";

  Class<?>[] groups() default {};

  Class<? extends Payload>[] payload() default {};

  int[] vals() default { };

}

/**
 * 自定義校驗器
 * @author mashanghaoyun
 * @date 2020/8/3115:15
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue, Integer> {

  private Set<Integer> set = new HashSet<>();

  /**
   * @Description 初始化方法
   * @Author mashanghaoyun
   * @Date 15:17 2020/8/31
   * @Param [constraintAnnotation]
   * @return void
   **/
  @Override
  public void initialize(ListValue constraintAnnotation) {
    int[] vals = constraintAnnotation.vals();
    if (vals.length > 0) {
      for (int val : vals) {
        set.add(val);
      }
    }
  }

  /**
   * @Description 判斷是否校驗成功
   * @Author mashanghaoyun
   * @Date 15:18 2020/8/31
   * @Param [value（當(dāng)前提交校驗的值）, context]
   * @return boolean
   **/
  @Override
  public boolean isValid(Integer value, ConstraintValidatorContext context) {
    if (set.size() > 0) {
      if (set.contains(value)) {
        return true;
      }
    }
    return false;
  }
}