JSR303自定义校验

参考参考分组校验

1、编写一个自定义的校验注解

@Documented
@Constraint(validatedBy = {ListValueConstraintValidator.class})
@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER, ElementType.TYPE_USE})
@Retention(RetentionPolicy.RUNTIME)
public @interface ListValue {
    String message() default "{com.liang.common.valid.ListValue.message}";

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

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

    int[] values() default {};
}

2、编写一个自定义的校验器

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set =new HashSet<>();

    //初始u话方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] values = constraintAnnotation.values();
        for (int value : values) {
            set.add(value);
        }
    }

    //判断是否校验成功

    /**
     *
     * @param integer 需要校验的值
     * @param constraintValidatorContext
     * @return
     */
    @Override
    public boolean isValid(Integer integer, ConstraintValidatorContext constraintValidatorContext) {
        return set.contains(integer);
    }
}

3、联校验器校验器和校验注解

1、校验注解指定@Constraint(validatedBy = {ListValueConstraintValidator.class})
2、校验器implements ConstraintValidator<ListValue,Integer>

4、使用注解

	@NotNull(groups = {AddGroup.class, UpdataStatusGroup.class})
	@ListValue(values={0,1},groups = {AddGroup.class, UpdataStatusGroup.class},message = "必须输入指定的值aa")
	private Integer showStatus;