因此，您将拥有一个jpa criteria对象，您可以在该对象上调用where方法并传递一个 predicate 数组。类似于

String fieldValue = "search terms";
    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<AType> criteriaQuery = criteriaBuilder.createQuery(AType.class);
    Root<AType> somePath = criteriaQuery.from(AType.class);
    criteriaQuery.where(criteriaBuilder.like(criteriaBuilder.upper(somePath.get("fieldName")),
            "%" + fieldValue.toUpperCase() + "%"));
    List<AType> result = entityManager.createQuery(criteriaQuery).getResultList();