How to implement pagination in SpringBoot?

In Spring Boot, you can achieve pagination query using Spring Data JPA. The specific steps are as follows:

1. Please turn to the next page.
2. Can be paginated

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.repository.CrudRepository;

public interface UserRepository extends CrudRepository<User, Long> {
    Page<User> findAll(Pageable pageable);
}

1. The ability to be paged or turned one at a time.

import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserService {

    @Autowired
    private UserRepository userRepository;

    public Page<User> findAllUsers(int page, int size) {
        PageRequest pageable = PageRequest.of(page, size);
        return userRepository.findAll(pageable);
    }
}

1. In the Controller, receive pagination parameters and invoke the Service layer method to retrieve paginated data. For example:

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.data.domain.Page;

@RestController
public class UserController {

    @Autowired
    private UserService userService;

    @GetMapping("/users")
    public Page<User> getUsers(@RequestParam(defaultValue = "0") int page, 
                               @RequestParam(defaultValue = "10") int size) {
        return userService.findAllUsers(page, size);
    }
}

By following the steps above, pagination functionality can be implemented in Spring Boot. The front-end page can display pagination data and navigation buttons based on the returned Page object.