后台管理分页查询的实现
作者:互联网
dao层
接口TypeRepository 继承 JpaRepository
@Repository
public interface TypeRepository extends JpaRepository<Type,Long> {
}
service层
-PagelistType(Pageable pageable);
public interface TypeService {
Type saveType(Type type);
Type getType(Long id);
Page<Type>listType(Pageable pageable);//分页查询,返回Page对象;
Type updateType(Long id,Type type);
Type getTypeByName(String name);
List<Type>listType();
List<Type>listTypeTop(Integer size);
void deleteType(Long id);
}
使用typeRepository.findAll()方法,pageable作为参数
@Transactional//事务
@Override
public Page<Type> listType(Pageable pageable) {
return typeRepository.findAll(pageable);//分页查询
}
controller层
@Autowired
private TypeService typeService;
//Pageable,springboot实现分页的方法;@PageableDefault默认指定参数,size:每页默认的条数,sort:排序
@GetMapping("/types")
public String types(@PageableDefault(size = 3,sort = {"id"},direction = Sort.Direction.DESC)
Pageable pageable, Model model){
model.addAttribute("page",typeService.listType(pageable));//把查到的pageable,返回给前端。
return "/admin/types";
}
标签:Pageable,Long,查询,public,分页,后台,Type,id,pageable 来源: https://blog.csdn.net/Here_/article/details/116833572