新增菜品

sky-server/src/main/java/com/sky/controller/admin/DishController.java

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+package com.sky.controller.admin;
+
+import com.sky.dto.DishDTO;
+import com.sky.result.Result;
+import com.sky.service.DishService;
+import io.swagger.annotations.Api;
+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;
+
+@RestController
+@RequestMapping("/admin/dish")
+@Slf4j
+@Api(tags = "菜品相关接口")
+public class DishController {
+
+    @Autowired
+    private DishService dishService;
+
+    /**
+     * 新增菜品
+     * @param dishDTO
+     * @return
+     */
+    @PostMapping
+    public Result save(@RequestBody DishDTO dishDTO){
+        log.info("新增菜品: {}",dishDTO);
+        dishService.saveWithFlavor(dishDTO);
+        return Result.success();
+    }
+}

sky-server/src/main/java/com/sky/mapper/DishFlavorMapper.java

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+package com.sky.mapper;
+
+import com.sky.entity.DishFlavor;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+@Mapper
+public interface DishFlavorMapper {
+    /**
+     * 批量插入口味数据
+     * @param flavors
+     */
+    void insertBatch(List<DishFlavor> flavors);
+}

sky-server/src/main/java/com/sky/service/DishService.java

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+package com.sky.service;
+
+import com.sky.dto.DishDTO;
+import org.springframework.stereotype.Service;
+
+@Service
+public interface DishService {
+
+    /**
+     * 新增菜品
+     * @param dishDTO
+     */
+    void saveWithFlavor(DishDTO dishDTO);
+}

sky-server/src/main/java/com/sky/service/impl/DishServiceImpl.java

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+package com.sky.service.impl;
+
+import com.sky.dto.DishDTO;
+import com.sky.entity.Dish;
+import com.sky.entity.DishFlavor;
+import com.sky.mapper.DishFlavorMapper;
+import com.sky.mapper.DishMapper;
+import com.sky.service.DishService;
+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;
+import java.util.function.Consumer;
+
+@Service
+@Slf4j
+public class DishServiceImpl implements DishService {
+
+    @Autowired
+    private DishMapper dishMapper;
+    @Autowired
+    private DishFlavorMapper dishFlavorMapper;
+
+    /**
+     * 新增菜品
+     *
+     * @param dishDTO
+     */
+    @Override
+    @Transactional
+    public void saveWithFlavor(DishDTO dishDTO) {
+        //向菜品表插入数据（一条）
+        Dish dish = new Dish();
+        BeanUtils.copyProperties(dishDTO, dish);
+        dishMapper.insert(dish);
+
+        //获取Insert语句生成的主键值
+        Long id = dish.getId();
+
+        //向口味表插入N条数据
+        List<DishFlavor> flavors = dishDTO.getFlavors();
+        if (flavors != null && !flavors.isEmpty()) {
+            //遍历flavors，插入id
+            flavors.forEach(dishFlavor -> dishFlavor.setDishId(id));
+            //批量插入
+            dishFlavorMapper.insertBatch(flavors);
+        }
+
+    }
+}

sky-server/src/main/resources/mapper/DishFlavorMapper.xml

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+<?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>

sky-server/src/main/resources/mapper/DishMapper.xml

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+<?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, status, create_time, update_time, create_user,
+                          update_user)
+        values (#{name}, #{categoryId}, #{price}, #{image}, #{description}, #{status}, #{createTime}, #{updateTime},
+                #{createUser}, #{updateUser})
+    </insert>
+</mapper>