后端java springboot 通行证实现注意事项

接口 UserService

public interface UserService {
    /**
     * 判断用户是否存在，如果存在返回用户信息
     * @param mobile
     * @return
     */
    public Users queryMobileIsExist(String mobile);

    /**
     * 创建用户
     * @param mobile
     * @return
     */
    public Users createUser(String mobile);

接口实现 BookServiceImpl

// Impl 功能实现
@Service //服务器扫描到
public class BookServiceImpl extends BaseInfoProperties implements BookService {
    @Autowired
    private BookMapper bookMapper;

    @Override
    public PagedGridResult getBookList( Integer page,
                                            Integer pageSize) {
        //切片
        PageHelper.startPage(page,pageSize);

       List<Book> list =   bookMapper.selectAll();//vlogMapperCustom.getIndexVlogList(map);

        return setterPageGrid(list,page);
    }
}

api模块 controller 调用

@Autowired
private UserService userService;


Users user = userService.queryMobileIsExist(mobile);