鉴于Predicate
中使用了CriteriaQuery
,例如这样:
150x150 pixels
可以扩展为使用多个ANDed字段,例如和下面的SQL一样?
Predicate predicate = root.get(MyTable.col1).in("col1Val1", "col1Val2");
答案 0 :(得分:1)
不太优雅的方法,使用JPA条件构建器
Path<String> col1Path=root.get("col1");
Path<String> col2Path=root.get("col2");
Path<String> col3Path=root.get("col3");
Predicate p0=criteriaBuilder.concat(col1Path,col2Path,col3Path)
.in("col1Val1"||"col2Val1"||"col3Val1",
"col1Val2"|| "col2Val2"|| "col3Val2");
第二种方法
Path<String> col1Path=root.get("col1");
Path<String> col2Path=root.get("col2");
Path<String> col3Path=root.get("col3");
Predicate p1=criteriaBuilder.or(
criteriaBuilder.and(criteriaBuilder.equal(col1Path,"col1Val1"),
criteriaBuilder.equal(col2Path,"col2Val1"),
criteriaBuilder.equal(col3Path,"col3Val1")
),
criteriaBuilder.and(criteriaBuilder.equal(col1Path,"col1Val2"),
criteriaBuilder.equal(col2Path,"col2Val2"),
criteriaBuilder.equal(col3Path,"col3Val2")
)
);