Spring Custom Query with pageable

Question

I want to to implement pagination in spring application.I know using repository we can implement pagination but we can not write our own query for data retrieve there are li

Answer 1

I am providing a code snippet on how we implement pagination using springboot with jpa simply using PagingAndSortingRepository which contains inbuild method for pagination.

public interface PersonRepository extends PagingAndSortingRepository {

}

  @Service
  public class PersonServiceImpl implements PersonService{
  
  @Autowired
  private PersonRepository personRepository;

  public Page listAll(int pageNumber){
   if(pageNumber>0){
  Pageable pageWithTenElements = PageRequest.of(pageNumber-1,10);
  //first param decide page and second param decide no of record

   return personRepository.findAll(pageWithTenElements);}
   else 
   return null;
  }

  }

  @RestController
  public class AppController {
  
  @Autowired
  private PersonService personService;

   @GetMapping("/page/{pageNumber}")
   public ResponseEntity> getPersons(@PathVariable("pageNumber") pageNumber){
   List persons = personService.listAll(pageNumber).getContent();
   ResponseEntity response = 
                           new ResponseEntity>(persons,HttpStatus.OK);
        
        return response;
   }

  }