本文主要是介绍《苍穹外卖》Day04套餐管理模块业务功能实现,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
一、新增套餐
1. DishController
/*** 根据分类id查询菜品* @param categoryId* @return*/@GetMapping("/list")@ApiOperation("根据分类id查询菜品")public Result<List<Dish>> list(Long categoryId) {List<Dish> list = dishService.list(categoryId);return Result.success(list);}
2. DishService
/*** 根据分类id查询菜品* @param categoryId* @return*/List<Dish> list(Long categoryId);
3. DishServiceImpl
/*** 根据分类id查询菜品* @param categoryId* @return*/@Overridepublic List<Dish> list(Long categoryId) {Dish dish = Dish.builder().categoryId(categoryId).status(StatusConstant.ENABLE).build();return dishMapper.list(dish);
4. DishMapper
/*** 动态条件查询菜品* @param dish* @return*/List<Dish> list(Dish dish);
5. DishMapper.xml
<select id="list" resultType="Dish" parameterType="Dish">select * from dish<where><if test="name != null">and name like concat('%',#{name},'%')</if><if test="categoryId != null">and category_id = #{categoryId}</if><if test="status != null">and status = #{status}</if></where>order by create_time desc</select>
6. SetmealController
package com.sky.controller.admin;import com.sky.dto.SetmealDTO;
import com.sky.result.Result;
import com.sky.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** 套餐管理*/
@RestController
@RequestMapping("/admin/setmeal")
@Api(tags = "套餐相关接口")
@Slf4j
public class SetmealController {@Autowiredprivate SetmealService setmealService;/*** 新增套餐* @param setmealDTO* @return*/@PostMapping@ApiOperation("新增套餐")public Result save(@RequestBody SetmealDTO setmealDTO) {setmealService.saveWithDish(setmealDTO);return Result.success();}
}
7. SetmealService
package com.sky.service;import com.sky.dto.SetmealDTO;public interface SetmealService {/*** 新增套餐,同时需要保存套餐和菜品的关联关系* @param setmealDTO* @return*/void saveWithDish(SetmealDTO setmealDTO);
}
8. SetmealServiceImpl
package com.sky.service.impl;import com.sky.dto.SetmealDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;import java.util.List;/*** 套餐业务实现*/
@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {@Autowiredprivate SetmealMapper setmealMapper;@Autowiredprivate SetmealDishMapper setmealDishMapper;@Autowiredprivate DishMapper dishMapper;/*** 新增套餐,同时需要保存套餐和菜品的关联关系* @param setmealDTO* @return*/@Override@Transactional // 同时操作多张表,开启事务public void saveWithDish(SetmealDTO setmealDTO) {Setmeal setmeal = new Setmeal();BeanUtils.copyProperties(setmealDTO, setmeal);// 向套餐表插入数据setmealMapper.insert(setmeal);// 获取生成的套餐idLong setmealId = setmeal.getId();List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();setmealDishes.forEach(setmealDish -> {setmealDish.setSetmealId(setmealId);});// 保存套餐和菜品的关联关系setmealDishMapper.insertBatch(setmealDishes);}
}
9. SetmealMapper
/*** 新增套餐* @param setmeal*/@AutoFill(OperationType.INSERT)void insert(Setmeal setmeal);
10. SetmealMapper.xml
<insert id="insert" parameterType="Setmeal" useGeneratedKeys="true" keyProperty="id">insert into setmeal(category_id, name, price, status, description, image, create_time, update_time, create_user, update_user)values (#{categoryId}, #{name}, #{price}, #{status}, #{description}, #{image}, #{createTime}, #{updateTime},#{createUser}, #{updateUser})</insert>
11. SetmealDishMapper
/*** 批量保存套餐和菜品的关联关系* @param setmealDishes*/void insertBatch(List<SetmealDish> setmealDishes);
12. SetmealMapper.xml
<insert id="insertBatch" parameterType="list">insert into setmeal_dish(setmeal_id,dish_id,name,price,copies)values<foreach collection="setmealDishes" item="sd" separator=",">(#{sd.setmealId},#{sd.dishId},#{sd.name},#{sd.price},#{sd.copies})</foreach></insert>
二、套餐分页查询
1. SetmealController
/*** 分页查询* @param setmealPageQueryDTO* @return*/@GetMapping("/page")@ApiOperation("分页查询")public Result<PageResult> page(SetmealPageQueryDTO setmealPageQueryDTO) {PageResult pageResult = setmealService.pageQuery(setmealPageQueryDTO);return Result.success(pageResult);}
2. SetmealService
/*** 分页查询* @param setmealPageQueryDTO* @return*/PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO);
3. SetmealServiceImpl
/*** 分页查询* @param setmealPageQueryDTO* @return*/@Overridepublic PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {int pageNum = setmealPageQueryDTO.getPage();int pageSize = setmealPageQueryDTO.getPageSize();PageHelper.startPage(pageNum, pageSize);Page<SetmealVO> page = setmealMapper.pageQuery(setmealPageQueryDTO);return new PageResult(page.getTotal(), page.getResult());}
4. SetmealMapper
/*** 分页查询* @param setmealPageQueryDTO* @return*/Page<SetmealVO> pageQuery(SetmealPageQueryDTO setmealPageQueryDTO);
5. SetmealMapper.xml
<select id="pageQuery" resultType="com.sky.vo.SetmealVO">select s.*,c.name categoryNamefrom setmeal s left join category con s.category_id = c.id<where><if test="name != null">and s.name like concat('%',#{name},'%')</if><if test="status != null">and s.status = #{status}</if><if test="categoryId != null">and s.category_id = #{categoryId}</if></where>order by s.create_time desc</select>
三、删除套餐
1. SetmealController
/*** 批量删除套餐* @param ids* @return*/@DeleteMapping@ApiOperation("批量删除套餐")public Result delete(@RequestParam List<Long> ids) {setmealService.deleteBatch(ids);return Result.success();}
2. SetmealService
/*** 批量删除套餐* @param ids*/void deleteBatch(List<Long> ids);
3. SetmealService
/*** 批量删除套餐* @param ids*/@Transactionalpublic void deleteBatch(List<Long> ids) {ids.forEach(id -> {Setmeal setmeal = setmealMapper.getById(id);if(StatusConstant.ENABLE == setmeal.getStatus()) {// 起售中的套餐不能删除throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);}});ids.forEach(setmealId -> {// 删除套餐表中的数据setmealMapper.deleteById(setmealId);// 删除套餐菜品关系表中的数据setmealDishMapper.deleteBySetmealId(setmealId);});}
4. SetmealMapper
/*** 根据id查询套餐* @param id* @return*/@Select("select * from setmeal where id = #{id}")Setmeal getById(Long id);/*** 根据id删除套餐* @param setmealId*/@Delete("delete from setmeal where id = #{id}")void deleteById(Long setmealId);
5. SetmealDishMapper
/*** 根据套餐id删除套餐和菜品的关联关系* @param setmealId*/@Delete("delete from setmeal_dish where setmeal_id = #{setmealId}")void deleteBySetmealId(Long setmealId);
四、修改套餐
1. SetmealController
/*** 根据id查询套餐,用于修改页面回显数据* @param id* @return*/@GetMapping("/{id}")@ApiOperation("根据id查询套餐")public Result<SetmealVO> getById(@PathVariable Long id) {SetmealVO setmealVO = setmealService.getByIdWithDish(id);return Result.success(setmealVO);}/*** 修改套餐* @param setmealDTO* @return*/@PutMapping@ApiOperation("修改套餐")public Result update(@RequestBody SetmealDTO setmealDTO) {setmealService.update(setmealDTO);return Result.success();}
2. SetmealService
/*** 根据id查询套餐和关联的菜品数据* @param id* @return*/SetmealVO getByIdWithDish(Long id);/*** 修改套餐* @param setmealDTO*/void update(SetmealDTO setmealDTO);
3. SetmealServiceImpl
/*** 根据id查询套餐和关联的菜品数据* @param id* @return*/@Overridepublic SetmealVO getByIdWithDish(Long id) {Setmeal setmeal = setmealMapper.getById(id);List<SetmealDish> setmealDishes = setmealDishMapper.getBySetmeakId(id);SetmealVO setmealVO = new SetmealVO();BeanUtils.copyProperties(setmeal, setmealVO);setmealVO.setSetmealDishes(setmealDishes);return setmealVO;}/*** 修改套餐* @param setmealDTO*/@Override@Transactionalpublic void update(SetmealDTO setmealDTO) {Setmeal setmeal = new Setmeal();BeanUtils.copyProperties(setmealDTO, setmeal);// 1. 修改套餐类,执行updatesetmealMapper.update(setmeal);// 套餐idLong setmealId = setmealDTO.getId();// 2. 删除套餐和菜品的关联关系,操作setmeal_dish表,执行deletesetmealDishMapper.deleteBySetmealId(setmealId);List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();setmealDishes.forEach(setmealDish -> {setmealDish.setSetmealId(setmealId);});// 3. 重新插入套餐和菜品的关联关系,操作setmeal_dish表,执行insertsetmealDishMapper.insertBatch(setmealDishes);}
4. SetmealDishMapper
/*** 根据套餐id查询套餐和菜品的关联关系* @param id* @return*/@Select("select * from setmeal_dish where setmeal_id = #{setmealId}")List<SetmealDish> getBySetmeakId(Long id);
五、起售停售套餐
1. SetmealController
/*** 掏槽起售停售* @param status* @param id* @return*/@PostMapping("/status/{status}")@ApiOperation("套餐起售停售")public Result startOrStop(@PathVariable Integer status, Long id) {setmealService.startOrStop(status, id);return Result.success();}
2. SetmealService
/*** 套餐起售停售* @param status* @param id*/void startOrStop(Integer status, Long id);
3. SetmealServiceImpl
/*** 套餐起售停售* @param status* @param id*/@Overridepublic void startOrStop(Integer status, Long id) {// 起售套餐时,判断套餐内是否包含停售菜品,有停售菜品提示“套餐内包含未起售菜品,无法起售if(status == StatusConstant.ENABLE) {// select a.* from dish a left join setmeal_dish b on a.id = b.dish_id where b.setmeal_id = ?List<Dish> dishList = dishMapper.getBySetmealId(id);if(dishList != null && dishList.size() > 0) {dishList.forEach(dish -> {if(StatusConstant.DISABLE == dish.getStatus()) {throw new SetmealEnableFailedException(MessageConstant.SETMEAL_ENABLE_FAILED);}});}}Setmeal setmeal = Setmeal.builder().id(id).status(status).build();setmealMapper.update(setmeal);}
4. DishMapper
/*** 根据套餐id查询菜品* @param setmealId* @return*/@Select("select a.* from dish a left join setmeal_dish b on a.id = b.dish_id where b.setmeal_id = #{setmealId}")List<Dish> getBySetmealId(Long setmealId);
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