至少 24 小时后的休眠验证器注释

Question

我知道存在注解@Future。

如果我用这个注释来注释字段

@Future
private Date date;

日期必须在未来意味着在当前时刻之后。

现在我需要验证该日期至少比当前时刻晚 24 小时。
我怎样才能做到？

Answer 1

AfterTomorrow.java:

@Target({ FIELD, METHOD, PARAMETER })
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = AfterTomorrowValidator.class)
@Documented
public @interface AfterTomorrow {
    String message() default "{AfterTomorrow.message}";
    Class<?>[] groups() default {};
    Class<? extends Payload>[] payload() default {};
}

AfterTomorrowValidator.java:

public class AfterTomorrowValidator 
             implements ConstraintValidator<AfterTomorrow, Date> {
    public final void initialize(final AfterTomorrow annotation) {}

    public final boolean isValid(final Date value,
                                 final ConstraintValidatorContext context) {
        Calendar c = Calendar.getInstance(); 
        c.setTime(value); 
        c.add(Calendar.DATE, 1);
        return value.after(c.getTime());
    }
}

此外，您可以在 ValidationMessages.properties

中添加默认 AfterTomorrow.message 消息

最后，注释您的字段：

@AfterTomorrow
private Date date;

至少 24 小时后的休眠验证器注释

Annotation for hibernate validator for a date at least 24 hours in the future

java

validation

date

spring-mvc

hibernate-validator