I'm trying to make a method in CrudRepository that will be able to give me list of users, whose usernames are LIKE the input parameter(not only begin with, but also contains it). I tried to use method "findUserByUsernameLike(@Param("username") String username)"
but as it is told in Spring documentation, this method is equal to " where user.username like?1
". It is not good for me, as I already told that I'm trying to get all users whose username contains...
I wrote a queryto the method but it even doesn't deploy.
@Repository
public interface UserRepository extends CrudRepository<User, Long> {
@Query("select u from user u where u.username like '%username%'")
List<User> findUserByUsernameLike(@Param("username") String username);
}
Can anybody help me with this?
Try to use the following approach (it works for me):
@Query("SELECT u.username FROM User u WHERE u.username LIKE CONCAT('%',:username,'%')")
List<String> findUsersWithPartOfName(@Param("username") String username);
Notice: The table name in JPQL must start with a capital letter.
Using Query creation from method names , check table 4 where they explain some keywords.
Using Like: select ... like :username
List<User> findByUsernameLike(String username);
StartingWith: select ... like :username%
List<User> findByUsernameStartingWith(String username);
EndingWith: select ... like %:username
List<User> findByUsernameEndingWith(String username);
Containing: select ... like %:username%
List<User> findByUsernameContaining(String username);
Notice that the answer that you are looking for is number 4 . You don't have to use @Query
Another way: instead CONCAT
function we can use double pipe: :lastname || '%'
@Query("select c from Customer c where c.lastName LIKE :lastname||'%'")
List<Customer> findCustomByLastName( @Param("lastname") String lastName);
You can put anywhere, prefix, suffix or both
:lastname ||'%'
'%' || :lastname
'%' || :lastname || '%'
List<User> findByUsernameContainingIgnoreCase(String username);
为了忽略案例问题
Easy to use following (no need use CONCAT or ||):
@Query("from Service s where s.category.typeAsString like :parent%")
List<Service> findAll(@Param("parent") String parent);
Documented in: http://docs.spring.io/spring-data/jpa/docs/current/reference/html .
For your case, you can directly use JPA methods. That is like bellow:
Containing: select ... like %:username%
List<User> findByUsernameContainingIgnoreCase(String username);
here, IgnoreCase will help you to search item with ignoring the case.
Here are some related methods:
Like findByFirstnameLike
… where x.firstname like ?1
StartingWith findByFirstnameStartingWith
… where x.firstname like ?1 (parameter bound with appended %)
EndingWith findByFirstnameEndingWith
… where x.firstname like ?1 (parameter bound with prepended %)
Containing findByFirstnameContaining
… where x.firstname like ?1 (parameter bound wrapped in %)
More info , view this link and this link
Hope this will help you :)
This way works for me, (using Spring Boot version 2.0.1. RELEASE):
@Query("SELECT u.username FROM User u WHERE u.username LIKE %?1%")
List<String> findUsersWithPartOfName(@Param("username") String username);
Explaining: The ?1, ?2, ?3 etc. are place holders the first, second, third parameters, etc. In this case is enough to have the parameter is surrounded by % as if it was a standard SQL query but without the single quotes.
You Missed a colon(:) before the username parameter. therefore your code must change from:
@Query("select u from user u where u.username like '%username%'")
to :
@Query("select u from user u where u.username like '%:username%'")
this @Query("select u from user u where u.username like '%:username%'")
does not work in some cases!
working solution for me was
@Query("SELECT u.username FROM User u WHERE u.username LIKE CONCAT('%',:username,'%')")
@Query("select u from user u where u.username LIKE :username")
List<User> findUserByUsernameLike(@Param("username") String username);
If you are using Spring-Data-Jpa +2.7 there is a bug with LIKE parameter using %:param% in queries. It will be fixed in version 3.
https://github.com/spring-projects/spring-data-jpa/issues/2548
@Query("select b.equipSealRegisterId from EquipSealRegister b where b.sealName like %?1% and b.deleteFlag = '0'" )
List<String>findBySeal(String sealname);
I have tried this code and it works.
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