使用Spring数据分页

Question

我有一个类，它返回一个<代码>列表

 List<UserObject> objectList = UserObjectData.getObjectArray();

在我的存储库中，我有一个可分页对象，它应该从第0页开始每页返回2个项目。它具有以下属性：

  System.out.println(pageable.getPageSize());  // returns '2'
  System.out.println(pageable.getOffset());  // returns '0'
  System.out.println(pageable.getPageNumber());  // returns '0'

然后我创建一个页面

  Page<UserObject> theObjects = new PageImpl<UserObject>(objectList, pageable, objectList.size());

... 这就是回归的原因：

  System.out.println(theObjects.getSize());  // returns '2'
  System.out.println(theObjects.getNumber());  // returns '0'
  System.out.println(theObjects.getNumberOfElements());  // returns '184'
  System.out.println(theObjects.getTotalElements());  // returns '184'
  System.out.println(theObjects.getTotalPages());  // returns '92'

我通过页面

上面的代码看起来是否正确；尤其是new PageImpl

编辑：以下是完整的代码：

@RestController
public class UserController {
  private UserObjectService service;
  NewUserRepository newUserRepository;

  @RequestMapping(value = "getObjects", method = RequestMethod.GET)
  public Page<UserObject> getObjects(@RequestParam int page, @RequestParam int size) {
    Pageable pageable = new PageRequest(page,size);
    newUserRepository = new NewUserRepository();
    Page<UserObject> newPageResult = newUserRepository.findAll(pageable);
    return newPageResult;
}


public class NewUserRepository implements PagingAndSortingRepository<UserObject, Long> {
  public Page<UserObject> findAll(Pageable pageable) {
    List<UserObject> objectList = UserObjectData.getObjectArray(); // I can verify this contains 184 items
        Page<UserObject> theObjects = new PageImpl<UserObject>(objectList, pageable, objectList.size());
        return theObjects;
}




Answer 1

将页面对象创建更改为：

Page<UserObject> theObjects = new PageImpl<UserObject>(objectList, pageable, (pageable.getOffset() + pageable.getPageSize()));