快捷餐饮之店家后台菜品分类及菜品管理实现

简介: 快捷餐饮之店家后台菜品分类及菜品管理实现


一、菜品分类管理实现


1.1 创建菜品分类DTO

名称:DishesTypeDTO


/**
 * @Package: cn.liuliang.quickdinesysstore.entity.dto
 * @Author: liuliang
 * @CreateTime: 2020/10/28 - 16:54
 * @Description:
 */
@Data
@ApiModel(value="菜品种类dto", description="")
public class DishesTypeDTO implements Serializable {
    private static final long serialVersionUID=1L;
    @ApiModelProperty(value = "ID")
    private Long id;
    @ApiModelProperty(value = "分类名称:唯一")
    private String typeName;
}


1.2 创建菜品分类VO

名称:DishesTypeVO


/**
 * @Package: cn.liuliang.quickdinesysstore.entity.vo
 * @Author: liuliang
 * @CreateTime: 2020/10/28 - 17:33
 * @Description:
 */
@Data
@ApiModel(value="菜品分类vo", description="")
public class DishesTypeVO {
    @ApiModelProperty(value = "ID")
    private Long id;
    @ApiModelProperty(value = "菜名:唯一")
    private String dishesName;
}


1.3 效果


image.png


1.4 编写controller


image.png


/**
 * <p>
 * 前端控制器
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
@Api(value = "菜品分类管理", tags = "菜品分类管理")
@CrossOrigin
@RestController
@RequestMapping("/dishes-type")
public class DishesTypeController {
    @Autowired
    private DishesTypeService dishesTypeService;
    @ApiOperation(value = "条件分页查看所有菜品分类信息", notes = "条件分页查看所有菜品分类信息")
    @ApiResponses({@ApiResponse(code = 200, message = "请求成功!", response = DishesTypeDTO.class)})
    @GetMapping("/select-all")
    public ResultDTO selectAll(
        @ApiParam("分类名称查询值") @RequestParam(value = "selectValue", required = false, defaultValue = "") String selectValue,
        @ApiParam("当前页码") @RequestParam(value = "pageNum", required = false, defaultValue = "1") Integer pageNum,
        @ApiParam("每页显示条数") @RequestParam(value = "pageSize", required = false, defaultValue = "10") Integer pageSize) {
        return dishesTypeService.selectPage(selectValue, pageNum, pageSize);
    }
    @ApiOperation(value = "添加或修改菜品分类", notes = "添加或修改菜品分类")
    @PostMapping("/add-or-update")
    public ResultDTO addOrUpdateDishesType(@RequestBody DishesTypeVO dishesTypeVO) {
        return dishesTypeService.addOrUpdateDishesType(dishesTypeVO);
    }
    @ApiOperation(value = "删除菜品分类", notes = "删除菜品分类")
    @GetMapping("/delete")
    public ResultDTO delete(@ApiParam("分类id") @RequestParam(value = "分类id", required = true) Long id) {
        return dishesTypeService.delete(id);
    }
}


1.5 编写service


image.png


/**
 * <p>
 *  服务类
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
public interface DishesTypeService extends IService<DishesType> {
    /**
     * 分页条件查询菜品种类列表
     * @param selectValue   查询条件
     * @param pageNum       当前页
     * @param pageSize      每页数量
     * @return
     */
    ResultDTO selectPage(String selectValue, Integer pageNum, Integer pageSize);
    /**
     * 添加或修改菜品分类
     * @param dishesTypeVO  分类名称相关信息
     * @return
     */
    ResultDTO addOrUpdateDishesType(DishesTypeVO dishesTypeVO);
    /**
     * 删除菜品分类
     * @param id    菜品分类id
     * @return
     */
    ResultDTO delete(Long id);
}


/**
 * <p>
 * 服务实现类
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
@Service
public class DishesTypeServiceImpl extends ServiceImpl<DishesTypeMapper, DishesType> implements DishesTypeService {
    @Autowired
    private DishesTypeMapper dishesTypeMapper;
    @Override
    public ResultDTO selectPage(String selectValue, Integer pageNum, Integer pageSize) {
        // 设置分页参数
        Page<DishesType> dishesTypePage = new Page<>(pageNum, pageSize);
        // 定义创建条件对象
        QueryWrapper<DishesType> queryWrapper = null;
        //判断是否有查询值
        if (!StringUtils.isEmpty(selectValue)) {
            // 创建查询对象
            queryWrapper = new QueryWrapper<>();
            // 定义查询条件 like全查
            queryWrapper.like("type_name", selectValue);
        }
        // 执行查询
        IPage<DishesType> dishesTypePageModel = dishesTypeMapper.selectPage(dishesTypePage, queryWrapper);
        // 获取总条数
        long total = dishesTypePageModel.getTotal();
        // 数据转换及获取数据
        List<DishesTypeDTO> dishesTypeDTOList = new ArrayList<>();
        List<DishesType> records = dishesTypePageModel.getRecords();
        records.forEach(DishesType -> {
            DishesTypeDTO dishesTypeDTO = new DishesTypeDTO();
            BeanUtils.copyProperties(DishesType, dishesTypeDTO);
            dishesTypeDTOList.add(dishesTypeDTO);
        });
        // 返回数据
        return ResultDTO.success().data("total", total).data("rows", dishesTypeDTOList);
    }
    @Override
    public ResultDTO addOrUpdateDishesType(DishesTypeVO dishesTypeVO) {
        if (null == dishesTypeVO.getId()) {
            // 插入
            // 构造插入对象
            DishesType dishesType = new DishesType();
            // 设置数据
            dishesType.setTypeName(dishesTypeVO.getDishesName());
            // 执行插入
            dishesTypeMapper.insert(dishesType);
        } else {
            // 修改
            // 先根据id查询数据
            DishesType dishesType = dishesTypeMapper.selectById(dishesTypeVO.getId());
            // 修改数据
            dishesType.setTypeName(dishesTypeVO.getDishesName());
            // 执行修改
            dishesTypeMapper.updateById(dishesType);
        }
        return ResultDTO.success();
    }
    @Override
    public ResultDTO delete(Long id) {
        dishesTypeMapper.deleteById(id);
        return ResultDTO.success();
    }
}


1.6 编写mapper

mapper类中用了MyBatisPlus封装好的方法,所以没有编写代码


1.7 启动访问swagger

http://localhost:9110/swagger-ui.html#/


二、菜品管理实现


2.1 创建菜品DTO


/**
 * @Package: cn.liuliang.quickdinesysstore.entity.vo
 * @Author: liuliang
 * @CreateTime: 2020/10/24 - 15:02
 * @Description:
 */
@Data
@EqualsAndHashCode()
@ApiModel(value="菜品信息DTO", description="")
public class DishesDTO implements Serializable {
    private static final long serialVersionUID = 1L;
    @ApiModelProperty(value = "id")
    private Long id;
    @ApiModelProperty(value = "图片:存储图片的url访问地址")
    private String imageUrl;
    @ApiModelProperty(value = "菜名:唯一")
    private String dishesName;
    @ApiModelProperty(value = "价格")
    private BigDecimal price;
    @ApiModelProperty(value = "所属类别id")
    private Long dishesTypeId;
    @ApiModelProperty(value = "所属类别名称")
    private String dishesTypeName;
    @ApiModelProperty(value = "简介:菜品的描述")
    private String briefIntroduction;
    @ApiModelProperty(value = "创建时间")
    private Date createTime;
}


2.2 创建菜品VO


/**
 * @Package: cn.liuliang.quickdinesysstore.entity.vo
 * @Author: liuliang
 * @CreateTime: 2020/10/29 - 11:47
 * @Description:
 */
@Data
@ApiModel(value = "菜品信息vo", description = "")
public class DishesVO {
    @ApiModelProperty(value = "ID")
    private Long id;
    @ApiModelProperty(value = "菜名:唯一")
    private String dishesName;
    @ApiModelProperty(value = "所属类别:什么类型的菜,关联下表(菜品分类表)id")
    private Long dishesTypeId;
    @ApiModelProperty(value = "简介:菜品的描述")
    private String briefIntroduction;
    @ApiModelProperty(value = "图片:存储图片的url访问地址")
    private String imageUrl;
    @ApiModelProperty(value = "价格")
    private BigDecimal price;
}


2.3 创建菜品查询条件VO


/**
 * @Package: cn.liuliang.quickdinesysstore.entity.vo
 * @Author: liuliang
 * @CreateTime: 2020/10/28 - 19:30
 * @Description:
 */
@Data
@ApiModel(value="菜品查询条件vo", description="")
public class DishesQueryConditionVO {
    @ApiModelProperty(value = "菜名:唯一")
    private String dishesName;
    @ApiModelProperty(value = "菜品类别")
    private String dishesTypeName;
    @ApiModelProperty(value = "价格")
    private BigDecimal price;
    @ApiModelProperty(value = "创建时间:格式(2020-10-10)")
    private String createTime;
}


1.4 效果


image.png


1.5 编写controller


image.png


/**
 * <p>
 * 前端控制器
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
@Api(value = "菜品管理", tags = "菜品管理")
@CrossOrigin
@RestController
@RequestMapping("/dishes")
public class DishesController {
    @Autowired
    private DishesService dishesService;
    @ApiOperation(value = "根据条件分页获取所有菜品信息", notes = "根据条件分页获取所有菜品信息")
    @GetMapping("/select-all")
    public ResultDTO selectAll(
        DishesQueryConditionVO dishesQueryConditionVO,
        @ApiParam("当前页码") @RequestParam(value = "pageNum", required = false, defaultValue = "1") Integer pageNum,
        @ApiParam("每页显示条数") @RequestParam(value = "pageSize", required = false, defaultValue = "10") Integer pageSize) {
        return dishesService.selectAll(dishesQueryConditionVO, pageNum, pageSize);
    }
    @ApiOperation(value = "添加或修改菜品", notes = "添加或修改菜品")
    @PostMapping("/add-or-update")
    public ResultDTO addOrUpdate(@RequestBody DishesVO dishesVO) {
        return dishesService.addOrUpdate(dishesVO);
    }
    @ApiOperation(value = "根据id获取菜品信息", notes = "根据id获取菜品信息")
    @ApiResponses({@ApiResponse(code = 200, message = "请求成功!", response = DishesDTO.class)})
    @GetMapping("/select-one")
    public ResultDTO selectOne(@ApiParam("菜品id") @RequestParam(value = "id", required = true) Long id) {
        return dishesService.selectOne(id);
    }
    @ApiOperation(value = "根据id删除菜品", notes = "根据id删除菜品")
    @GetMapping("/delete")
    public ResultDTO delete(@ApiParam("菜品id") @RequestParam(value = "id", required = true) Long id) {
        dishesService.removeById(id);
        return ResultDTO.success();
    }
}


1.6 编写service


image.png


/**
 * <p>
 * 服务类
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
public interface DishesService extends IService<Dishes> {
    /**
     * 添加菜品或修改菜品
     *
     * @param dishesVO 菜品信息
     * @return
     */
    ResultDTO addOrUpdate(DishesVO dishesVO);
    /**
     * 根据条件分页获取所有菜品信息
     *
     * @param dishesQueryConditionVO 查询条件对象
     * @param pageNum                当前页
     * @param pageSize               每页数量
     * @return
     */
    ResultDTO selectAll(DishesQueryConditionVO dishesQueryConditionVO, Integer pageNum, Integer pageSize);
    /**
     * 根据id获取菜品
     * @param id    菜品id
     * @return
     */
    ResultDTO selectOne(Long id);
}


/**
 * <p>
 * 服务实现类
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
@Service
public class DishesServiceImpl extends ServiceImpl<DishesMapper, Dishes> implements DishesService {
    @Autowired
    private DishesMapper dishesMapper;
    @Autowired
    private DishesTypeMapper dishesTypeMapper;
    @Override
    public ResultDTO addOrUpdate(DishesVO dishesVO) {
        // 判断条件是否为空
        if (null == dishesVO.getDishesName() || "".equals(dishesVO.getDishesName()) ||
                null == dishesVO.getDishesTypeId() || "".equals(dishesVO.getDishesTypeId().toString()) ||
                null == dishesVO.getImageUrl() || "".equals(dishesVO.getImageUrl()) ||
                null == dishesVO.getPrice() || "".equals(dishesVO.getPrice().toString())) {
            // 为空,抛出自定义异常
            throw new QuickException(ResultCodeEnum.PAEAMETER_IS_EMPTY);
        }
        // 判断是插入还是修改
        if (null == dishesVO.getId()) {
            // 插入
            // 构造插入对象,并赋值
            Dishes dishes = new Dishes();
            BeanUtils.copyProperties(dishesVO, dishes);
            dishesMapper.insert(dishes);
        } else {
            // 修改
            // 根据id查找数据
            QueryWrapper<Dishes> dishesQueryWrapper = new QueryWrapper<>();
            dishesQueryWrapper
                    .select("dishes_name", "dishes_type_id", "brief_introduction", "image_url", "price")
                    .eq("id", dishesVO.getId());
            Dishes dishes = dishesMapper.selectOne(dishesQueryWrapper);
            BeanUtils.copyProperties(dishesVO, dishes);
            dishesMapper.updateById(dishes);
        }
        return ResultDTO.success();
    }
    @Override
    public ResultDTO selectAll(DishesQueryConditionVO dishesQueryConditionVO, Integer pageNum, Integer pageSize) {
        // 构造分页
        Page<Dishes> dishesPage = new Page<>(pageNum, pageSize);
        // 执行条件查询
        List<Dishes> dishesList = dishesMapper.selectAll(dishesPage, dishesQueryConditionVO);
        // 获取相关数据
        long total = dishesPage.getTotal();
        List<DishesDTO> dishesDTOList = selectDishesTypeName(dishesList);
        // 返回结果
        return ResultDTO.success().data("total", total).data("rows", dishesDTOList);
    }
    @Override
    public ResultDTO selectOne(Long id) {
        Dishes dishes = dishesMapper.selectById(id);
        // 构造数据
        DishesDTO dishesDTO = new DishesDTO();
        BeanUtils.copyProperties(dishes, dishesDTO);
        // 定义查询条件
        QueryWrapper<DishesType> dishesTypeQueryWrapper = new QueryWrapper<>();
        // 查询分类名称并赋值
        dishesTypeQueryWrapper.select("type_name").eq("id", dishesDTO.getDishesTypeId());
        dishesDTO.setDishesTypeName(dishesTypeMapper.selectOne(dishesTypeQueryWrapper).getTypeName());
        return ResultDTO.success().data("data", dishesDTO);
    }
    /**
     * 设置传入的菜品列表数据的菜品分类名称
     *
     * @param dishesList 菜品列表,没有菜品分类名称
     * @return
     */
    private List<DishesDTO> selectDishesTypeName(List<Dishes> dishesList) {
        // 定义返回结果列表
        List<DishesDTO> dishesDTOList = new ArrayList<>(dishesList.size());
        // 遍历
        dishesList.forEach(dishes -> {
            // 填充数据
            DishesDTO dishesDTO = new DishesDTO();
            BeanUtils.copyProperties(dishes, dishesDTO);
            // 定义查询条件
            QueryWrapper<DishesType> dishesTypeQueryWrapper = new QueryWrapper<>();
            // 查询分类名称并赋值
            dishesTypeQueryWrapper.select("type_name").eq("id", dishesDTO.getDishesTypeId());
            dishesDTO.setDishesTypeName(dishesTypeMapper.selectOne(dishesTypeQueryWrapper).getTypeName());
            // 将结果放入返回列表中
            dishesDTOList.add(dishesDTO);
        });
        // 返回数据列表
        return dishesDTOList;
    }
}


1.7 编写mapper


image.png


/**
 * <p>
 * Mapper 接口
 * </p>
 *
 * @author j3_liuliang
 * @since 2020-10-24
 */
public interface DishesMapper extends BaseMapper<Dishes> {
    /**
     * 根据条件分页查询菜品列表
     *
     * @param dishesPage             分页对象
     * @param dishesQueryConditionVO 条件对象
     * @return
     */
    List<Dishes> selectAll(@Param("dishesPage") Page<Dishes> dishesPage, @Param("dishesQueryConditionVO") DishesQueryConditionVO dishesQueryConditionVO);
}


<?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="cn.liuliang.quickdinesysstore.mapper.DishesMapper">
    <resultMap id="dishes" type="cn.liuliang.quickdinesysstore.entity.Dishes">
        <result property="id" javaType="long" column="dishes_id"/>
        <result property="imageUrl" javaType="string" column="image_url"/>
        <result property="dishesName" javaType="string" column="dishes_name"/>
        <result property="price" javaType="java.math.BigDecimal" column="price"/>
        <result property="dishesTypeId" javaType="long" column="dishes_type_id"/>
        <result property="createTime" javaType="date" column="create_time"/>
    </resultMap>
    <select id="selectAll" resultMap="dishes">
        SELECT
        t_dishes.`id` AS dishes_id,
        t_dishes.`image_url`,
        t_dishes.`dishes_name`,
        t_dishes.`price`,
        t_dishes.`dishes_type_id`,
        t_dishes.`brief_introduction`,
        t_dishes.`create_time`
        FROM t_dishes
        LEFT JOIN t_dishes_type ON t_dishes_type.`id` = t_dishes.`dishes_type_id`
        <where>
            <if test="dishesQueryConditionVO.dishesName != null and dishesQueryConditionVO.dishesName != ''">
                AND t_dishes.`dishes_name` LIKE CONCAT('%', #{dishesQueryConditionVO.dishesName}, '%')
            </if>
            <if test="dishesQueryConditionVO.dishesTypeName !=null and dishesQueryConditionVO.dishesTypeName !=''">
                AND t_dishes_type.`type_name` = #{dishesQueryConditionVO.dishesTypeName}
            </if>
            <if test="dishesQueryConditionVO.price != null">
                AND t_dishes.`price` = #{dishesQueryConditionVO.price}
            </if>
            <if test="dishesQueryConditionVO.createTime != null and dishesQueryConditionVO.createTime != ''">
                AND DATE_FORMAT(t_dishes.`create_time`, '%Y-%m-%d') = DATE_FORMAT(#{dishesQueryConditionVO.createTime}, '%Y-%m-%d')
            </if>
        </where>
    </select>
</mapper>


1.8 启动访问swagger

http://localhost:9110/swagger-ui.html#/


image.png


结束语


  • 由于博主才疏学浅,难免会有纰漏,假如你发现了错误或偏见的地方,还望留言给我指出来,我会对其加以修正。
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