Paging with Spring Framework

Question

I have a question, I need to make a pagination when I return all the records of a table, I don’t have much experience with Spring and I would like to know how it is done, I need to overwrite findAll()? Or is it possible to do it in the controller’s own way? Thanks in advance.

Answer 1

If you are using Spring Data you can create a interface that extends the interface Pagingandsortingrepository containing additional methods for paging.

The method findAll receives an object of the type Pageable, which contains the criteria for paging, such as number of items, current page, which field you want to sort and whether the ordering is ascending or descending.

Take an example:

Interface: The Long parameter is the User Id type

Controller:

The tamanho is the number of items you should have on the page. The method findAll returns an object of type Page which contains the information on the current page: Content, Quantity, Total Elements, Number of Pages. You can check on documentation what is returned by the method

Answer 2

From what you said it seems to me that you use Spring Data, so Spring itself provides another interface that you can extend when you are declaring your repository, this being the Pagingandsortingrepository, with this your findAll receives a Pageable type object and the return of the findAll method automatically comes paginated, I’ll give you some reference links, anything I’m here and may ask.

Doc interface.
http://docs.spring.io/spring-data/commons/docs/current/api/org/springframework/data/repository/PagingAndSortingRepository.html

Doc how to use.
http://docs.spring.io/spring-data/jpa/docs/current/reference/html/#repositories.core-Concepts