日期间隔的JPA条件API查询

Question

如何为hibernate3编写java条件查询。

从some_table中选择*，其中created_at介于DATE_SUB（curdate（），INTERVAL 8 DAY）和date_sub（curdate（），INTERVAL 2 DAY）之间

    CriteriaBuilder builder = sessionFactory.getCriteriaBuilder();
    CriteriaQuery<MyEntity> criteria = builder.createQuery(MyEntity.class);

    Root<MyEntity> root = criteria.from(MyEntity.class);

Answer 1

使用旧的java.util.Calendar和java.util.Date。

Calendar now = Calendar.getInstance();
now.add(Calendar.DATE, -8);
Date eightDaysAgo = now.getTime();
now.add(Calendar.DATE, 6);
Date twoDaysAgo = now.getTime();
Expression<Date> createdAt = root.<Date>get("created_at"); // choose the name of the property in Entity definition
Predicate predicate = builder.between(createdAt, twoDaysAgo, eightDaysAgo);
criteria.where(predicate);