[英]JPA and JSON operator native query
I'm trying to make this query work in JPA: 我正在尝试使此查询在JPA中工作:
SELECT * FROM contrat WHERE contrat_json @> '{"nom" :"hever"}';
It works perfectly with postgresql
but when I integrate it with JPA, I get the following error: 它与postgresql
完美配合,但是当我将它与JPA集成时,我收到以下错误:
Parameter with that position [1] did not exist 具有该位置[1]的参数不存在
My code: 我的代码:
@Transactional
@Query(nativeQuery = true,value = "select p from Contrat p where contrat_json @> '{\"nom\":\":nom\"}'")
public List<Contrat> findByNomRestrict(@Param("nom") String nom);
I think it does not recognize @>
despite native query, do you have an idea? 我认为它不承认@>
尽管本机查询,你有什么想法吗?
With PostgreSQL and JSON you'll probably run into needing ?
使用PostgreSQL和JSON你可能会遇到需要?
or other strange operators, so it's better you just use their function equivalents, instead. 或者其他奇怪的操作符,所以最好只使用它们的功能等价物。 You can look them up in the psql
console like this \\doS+ @>
. 您可以在psql
控制台中查找它们,例如\\doS+ @>
。
Your query is not native, as the parameter says. 您的查询不是本机的,如参数所示。
select p from Contrat p where...
Will only give you an error when it reaches the database. 只会在到达数据库时给您一个错误。
Try something like 尝试类似的东西
@Query(nativeQuery = true, value = "select * from Contrat where jsonb_contains(contrat_json, :nom )")
and just bind "{\\"nom\\":\\"" + param + "\\"}"
as the parameter 并将"{\\"nom\\":\\"" + param + "\\"}"
绑定为参数
I had similar problem with my native query. 我的原生查询遇到了类似的问题。 The jsonb field name is called data , and it's simple jsonb字段名称称为数据 ,它很简单
{
"name" : "genderList",
"displayName" : "gender list"
}
I want to find by name with JpaRepository, and here is my Repository 我想通过名字找到JpaRepository,这里是我的存储库
@Repository
public interface LookupListRepository extends JpaRepository<LookupList, UUID>
{
@Query(value = "SELECT * FROM lookup_list WHERE data->>'name' = :name",
nativeQuery = true)
List<LookupList> findByName(@Param("name") String name);
}
You need nativeQuery = true . 你需要nativeQuery = true 。 With nativeQuery = true , this works as well. 使用nativeQuery = true ,这也适用。
SELECT * FROM lookup_list WHERE jsonb_extract_path_text(data, 'name') = :name
I see your @Transactional annotation, I assume you have the native query on top of application service method. 我看到你的@Transactional注释,我假设你有一个基于应用程序服务方法的本机查询。 Can you try moving all native query's in repository and use JpaRepository, and use the repository method in your application service? 您是否可以尝试在存储库中移动所有本机查询并使用JpaRepository,并在应用程序服务中使用存储库方法? Here is how my application service uses the repository. 以下是我的应用程序服务使用存储库的方式。
public class LookupListServiceImpl implements LookupListService
{
@Autowired
LookupListRepository lookupListRepository;
@Override
@Transactional
public void changeLookupList(LookupListDto lookupListDto)
{
List<LookupList> lookupLists = lookupListRepository.findByName(lookupListDto.getName());
...
}
}
Reference for JPA repository http://docs.spring.io/spring-data/jpa/docs/1.3.0.RELEASE/reference/html/jpa.repositories.html JPA存储库的参考http://docs.spring.io/spring-data/jpa/docs/1.3.0.RELEASE/reference/html/jpa.repositories.html
Parameter holders are not understood inside literals: '...:nom...'
will contain the characters :nom
, not the bound values of nom
. 参数持有人不明白里面的文字: '...:nom...'
将包含字符:nom
,而不是绑定值nom
。
For PostgreSQL 9.5 (and later), use: 对于PostgreSQL 9.5(及更高版本),请使用:
SELECT * FROM contrat WHERE contrat_json @> jsonb_build_object('nom', :nom)
For 9.4: 对于9.4:
SELECT * FROM contrat WHERE contrat_json @> CAST(json_build_object('nom', :nom) AS jsonb)
For 9.3 (and earlier), there is no JSON containment operator (neither the jsonb
type). 对于9.3(及更早版本),没有JSON包含运算符(既不是jsonb
类型)。
http://rextester.com/AUHP11519 http://rextester.com/AUHP11519
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