PagingAndSortingRespository相关方法的更改

@Test
    public void testPagingAndSortingRespository(){
        //pageNo 从 0 开始. 
        int pageNo = 6 - 1;
        int pageSize = 5;
        //Pageable 接口通常使用的其 PageRequest 实现类. 其中封装了需要分页的信息
        //排序相关的. Sort 封装了排序的信息
        //Order 是具体针对于某一个属性进行升序还是降序. 
        Order order1 = new Order(Direction.DESC, "id");
        Order order2 = new Order(Direction.ASC, "email");
        Sort sort = new Sort(order1, order2);
        
        PageRequest pageable = new PageRequest(pageNo, pageSize, sort);
        Page<Person> page = personRepsotory.findAll(pageable);
        
        System.out.println("总记录数: " + page.getTotalElements());
        System.out.println("当前第几页: " + (page.getNumber() + 1));
        System.out.println("总页数: " + page.getTotalPages());
        System.out.println("当前页面的 List: " + page.getContent());
        System.out.println("当前页面的记录数: " + page.getNumberOfElements());
    }
    

  @Test
    public void testPagingAndSortingRespository(){
        //pageNo 从 0 开始.
        int pageNo = 6 - 1;
        // 分为多少页
        int pageSize = 5;
        //Pageable 接口通常使用的其 PageRequest 实现类. 其中封装了需要分页的信息
        //排序相关的. Sort 封装了排序的信息
        //Order 是具体针对于某一个属性进行升序还是降序.
        Sort.Order order1 = new Sort.Order(Sort.Direction.DESC, "id");
        Sort.Order order2 = new Sort.Order(Sort.Direction.ASC, "email");
        List<Sort.Order> orders = Arrays.asList(order1, order2);
        Sort sort = Sort.by(order1, order2);
        PageRequest pageable = PageRequest.of(pageNo, pageSize, sort);
        Page<Person> page = personRepository2.findAll(pageable);
        System.out.println("总记录数: " + page.getTotalElements());
        System.out.println("当前第几页: " + (page.getNumber() + 1));
        System.out.println("总页数: " + page.getTotalPages());
        System.out.println("当前页面的 List: " + page.getContent());
        System.out.println("当前页面的记录数: " + page.getNumberOfElements());
    }