How do you implement pagination in Spring Boot?

In Spring Boot, pagination is typically implemented using Spring Data JPA or Spring Data MongoDB with the help of Pageable and Page interfaces.

• Steps to implement pagination:

  1. Repository: Extend the repository interface (e.g., JpaRepository) and use the PagingAndSortingRepository methods.

     public interface BookRepository extends JpaRepository<Book, Long> {
         Page<Book> findByTitleContaining(String title, Pageable pageable);
     }
     

  2. Controller: In the service or controller, pass a Pageable object to the repository methods, which can be created via PageRequest.of(pageNumber, pageSize).

     @GetMapping("/books")
     public Page<Book> getBooks(@RequestParam String title, @RequestParam int page, @RequestParam int size) {
         Pageable pageable = PageRequest.of(page, size);
         return bookRepository.findByTitleContaining(title, pageable);
     }
     

  3. Response: The Page object provides methods like getContent(), getTotalElements(), getTotalPages(), and getNumber() to retrieve the paginated data and metadata.

In summary, Spring Boot makes pagination easy by using the Pageable interface to request data in chunks, and the Page object to handle paginated results and metadata.