千峰商城-springboot项目搭建-60-分类列表业务层和控制层实现

1.业务层实现：

CategoryServic接口：

public interface CategoryService {
    public ResultVO listCategories();
}

CategoryServicImpl实现类：

@Service
public class CategoryServiceImpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    public ResultVO listCategories() {
        List<CategoryVO> categoryVOS = categoryMapper.selectAllCategories();
        ResultVO resultVO = new ResultVO(ResStatus.OK, "success", categoryVOS);
        return resultVO;
    }
}

 

 

2.控制层实现：

indexController中：

@RestController
@CrossOrigin
@RequestMapping("/index")
@Api(value = "提供首页数据显示所需的接口",tags = "首页管理")
public class IndexController {

    @Autowired
    private IndexImgService indexImgService;
    @Autowired
    private CategoryService categoryService;

    @GetMapping("/indeximg")
    @ApiOperation("首页轮播图接口")
    public ResultVO listIndexImgs(){
        return indexImgService.listIndexImgs();
    }
    
    
    @GetMapping("/category-list")
    @ApiOperation("商品分类查询接口")
    public ResultVO listCategory(){
        return categoryService.listCategories();
    }
}