hibernate自定義校驗器使用（字段在in範圍以內）

時間 2019-11-15

標籤 hibernate 自定義校驗使用字段範圍以內欄目 Hibernate 简体版

原文原文鏈接

1.自定義註解類DigitsMustInjava

@Constraint(validatedBy = DigitsMustInValidator.class) //具體的實現
@Target({java.lang.annotation.ElementType.METHOD,
        java.lang.annotation.ElementType.FIELD})
@Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
@Documented
public @interface DigitsMustIn {
    String message() default "{}不需在[{}]中"; //提示信息,能夠寫死,能夠填寫國際化的key

    int[] inArr();

    //下面這兩個屬性必須添加
    Class<?>[] groups() default {};
    Class<? extends Payload>[] payload() default {};
}

2.實現DigitsMustInValidator校驗服務git

public class DigitsMustInValidator implements ConstraintValidator<DigitsMustIn, Integer> {
    Integer[] ints;

    @Override
    public void initialize(DigitsMustIn constraintAnnotation) {
        int[] ints = constraintAnnotation.inArr();
        this.ints = ArrayUtils.toObject(ints);
    }

    @Override
    public boolean isValid(Integer integer, ConstraintValidatorContext constraintValidatorContext) {
        if (ArrayUtils.contains(ints, integer)) {
            return true;
        }
        constraintValidatorContext.disableDefaultConstraintViolation();//禁用默認的message的值
        //從新添加錯誤提示語句
        constraintValidatorContext.buildConstraintViolationWithTemplate("["+integer+"]" + "必須在" + Arrays.toString(ints) + "以內").addConstraintViolation();

        return false;
    }
}

3.在須要校驗的字段上加自定義註解ide

@DigitsMustIn(inArr = {7, 8, 18})
private Integer sourceType;

4.驗證ui

private void validate(Object validateObj) throws WMS3CheckedException {
    for (ConstraintViolation<Object> constraintViolation : Validation.buildDefaultValidatorFactory().getValidator().validate(validateObj)) {
        throw new WMS3CheckedException(WMS3ExceptionCode.UNKNOW_EXCEPTON.getCode(),
                constraintViolation.getPropertyPath() + constraintViolation.getMessage());
    }
}