如何在使用来自json文件的数据的非存储库spring boot项目中使用分页？

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;

public interface MyRepository extends JpaRepository<MyEntity, Long> {
    Page<MyEntity> findAll(Pageable pageable);
}

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

@Service
public class MyService {
    private final MyRepository myRepository;

    @Autowired
    public MyService(MyRepository myRepository) {
        this.myRepository = myRepository;
    }

    public Page<MyEntity> getEntities(int pageNumber, int pageSize) {
        PageRequest pageRequest = PageRequest.of(pageNumber, pageSize);
        return myRepository.findAll(pageRequest);
    }
}

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

@RestController
public class MyController {
    private final MyService myService;

    @Autowired
    public MyController(MyService myService) {
        this.myService = myService;
    }

    @GetMapping("/entities")
    public Page<MyEntity> getEntities(
            @RequestParam(defaultValue = "0") int pageNumber,
            @RequestParam(defaultValue = "10") int pageSize) {
        return myService.getEntities(pageNumber, pageSize);
    }
}