spring jpa 条件查询统计

时间:2016-06-14 19:32:39   收藏:0   阅读:1642
EntityManager entityManager;
CriteriaBuilder criteriaBuilder =entityManager.getCriteriaBuilder();
CriteriaQuery<Entity> critQuery = criteriaBuilder.createQuery(实体类.class);
Root<实体类> root = critQuery.from(实体类.class);
Predicate predicate = criteriaBuilder.equal(root.get(字段).as(Integer.class),"条件参数");
critQuery.where(predicate);
return
entityManager.createQuery(critQuery).getResultList().size();
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