引起：org.postgresql.util.PSQLException：错误：运算符不存在：文本= integer

Question

I have code like this:

for (Integer partiesId : request.getPartiesIds()) {
            System.out.println(partiesId);
            Optional<Parties> parties = partiesRepository.findById(partiesId);
            OrderPartiesList.add(new OrderParties(Order.get(), parties.get()));
        }

here my request

like this

{
    "purchaseId" : 8,
    "partiesIds": [1, 2, 3, 4]
}

but when i hit my API i got error like this

Caused by: org.postgresql.util.PSQLException: ERROR: operator does not exist: text = integer

i have check my repository use this

public interface PartiesRepository extends JpaRepository<Parties, Integer>, JpaSpecificationExecutor<Parties> {
   // @Query("select p from parties p where p.name =?1")
    List<Parties> findAllByName(String name);
}

my model entity for parties also have use @Id with variable Integer my question why i getting error like that?

Answer 1

You are comparing an integer with a varchar when invoking partiesRepository.findById(partiesId); partiesId is an int, but in the DB it's probably a varchar. You could try something like partiesRepository.findById(String.valueOf(partiesId)); but probably you should change your ID field in the DB to be an int.