菜品管理模块:
新增菜品:
需求分析:
业务规则:
菜品名称必须是唯一的
菜品必须属于某个分类下,不能单独存在
新增菜品时可以根据情况选择菜品的口味
每个菜品必须对应一张图片
接口设计:
根据类型查询分类(已完成)
文件上传
新增菜品
代码开发:
开发文件上传接口:
前端通过浏览器进行文件的上传,发送请求,把文件提交给后端服务,再把图片上传到阿里云服务器。
实现步骤:
application.yml
spring:
profiles:
active: dev #设置环境
sky:
alioss:
endpoint: ${sky.alioss.endpoint}
access-key-id: ${sky.alioss.access-key-id}
access-key-secret: ${sky.alioss.access-key-secret}
bucket-name: ${sky.alioss.bucket-name}
application-dev.yml
sky:
alioss:
endpoint: oss-cn-hangzhou.aliyuncs.com
access-key-id: LTAI5tPeFLzsPPT8gG3LPW64
access-key-secret: U6k1brOZ8gaOIXv3nXbulGTUzy6Pd7
bucket-name: sky-take-out
配置类:
/**
* 配置类,用于创建AliOssUtil对象
*/
@Configuration
@Slf4j
public class OssConfiguration {
@Bean
@ConditionalOnMissingBean//没有再创建,保证整个spring容器里只有一个AliOssUtil对象
public AliOssUtil aliOssUtil(AliOssProperties aliOssProperties){
log.info("开始创建阿里云文件上传工具类对象:{}",aliOssProperties);
return new AliOssUtil(aliOssProperties.getEndpoint(),
aliOssProperties.getAccessKeyId(),
aliOssProperties.getAccessKeySecret(),
aliOssProperties.getBucketName());
}
}
定义通用接口common
/**
* 通用接口
*/
@RestController
@RequestMapping("/admin/common")
@Api(tags = "通用接口")
@Slf4j
public class CommonController {
@Autowired
private AliOssUtil aliOssUtil;
/**
* 文件上传
* @param file
* @return
*/
@PostMapping("/upload")
@ApiOperation("文件上传")
public Result<String> upload(MultipartFile file){
log.info("文件上传:{}",file);
try {
//原始文件名
String originalFilename = file.getOriginalFilename();
//截取原始文件名的后缀 dfdfdf.png
String extension = originalFilename.substring(originalFilename.lastIndexOf("."));
//构造新文件名称
String objectName = UUID.randomUUID().toString() + extension;
//文件的请求路径
String filePath = aliOssUtil.upload(file.getBytes(), objectName);
return Result.success(filePath);
} catch (IOException e) {
log.error("文件上传失败:{}", e);
}
return Result.error(MessageConstant.UPLOAD_FAILED);
}
}
controller层代码:
/**
* 菜品管理
*/
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {
@Autowired
private DishService dishService;
/**
* 新增菜品
*
* @param dishDTO
* @return
*/
@PostMapping
@ApiOperation("新增菜品")
public Result save(@RequestBody DishDTO dishDTO) {
log.info("新增菜品:{}", dishDTO);
dishService.saveWithFlavor(dishDTO);//后绪步骤开发
return Result.success();
}
}
service层代码:
public interface DishService {
/**
* 新增菜品和对应的口味
*
* @param dishDTO
*/
public void saveWithFlavor(DishDTO dishDTO);
}
service实现类代码:
@Service
@Slf4j
public class DishServiceImpl implements DishService {
@Autowired
private DishMapper dishMapper;
@Autowired
private DishFlavorMapper dishFlavorMapper;
/**
* 新增菜品和对应的口味
*
* @param dishDTO
*/
@Transactional
public void saveWithFlavor(DishDTO dishDTO) {
Dish dish = new Dish();
BeanUtils.copyProperties(dishDTO, dish);
//向菜品表插入1条数据
dishMapper.insert(dish);//后绪步骤实现
//获取insert语句生成的主键值
Long dishId = dish.getId();
List<DishFlavor> flavors = dishDTO.getFlavors();
if (flavors != null && flavors.size() > 0) {
flavors.forEach(dishFlavor -> {
dishFlavor.setDishId(dishId);
});
//向口味表插入n条数据
dishFlavorMapper.insertBatch(flavors);//后绪步骤实现
}
}
}
mapper层代码:
/**
* 插入菜品数据
*
* @param dish
*/
@AutoFill(value = OperationType.INSERT)
void insert(Dish dish);
mapper层插入口味接口:
@Mapper
public interface DishFlavorMapper {
/**
* 批量插入口味数据
* @param flavors
*/
void insertBatch(List<DishFlavor> flavors);
}
mapper.xml
新增菜品:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.sky.mapper.DishMapper">
<insert id="insert" useGeneratedKeys="true" keyProperty="id">
insert into dish (name, category_id, price, image, description, create_time, update_time, create_user,update_user, status)
values (#{name}, #{categoryId}, #{price}, #{image}, #{description}, #{createTime}, #{updateTime}, #{createUser}, #{updateUser}, #{status})
</insert>
</mapper>
口味:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.sky.mapper.DishFlavorMapper">
<insert id="insertBatch">
insert into dish_flavor (dish_id, name, value) VALUES
<foreach collection="flavors" item="df" separator=",">
(#{df.dishId},#{df.name},#{df.value})
</foreach>
</insert>
</mapper>