苍穹外卖学习笔记(十三)

三. 导入商品浏览功能代码

由于user的Controller与admin的相同，记得修改RestController注释

1. 查询分类

CategoryController

package com.sky.controller.user;

import com.sky.entity.Category;
import com.sky.result.Result;
import com.sky.service.CategoryService;
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.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @author Jie.
 * @description: TODO
 * @date 2024/9/24
 * @version: 1.0
 */
@RestController("userCategoryController")
@RequestMapping("/user/category")
@Api(tags = "分类管理")
@Slf4j
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

    @GetMapping("/list")
    @ApiOperation("条件查询")
    public Result<List<Category>> listCategory(Integer type) {
        log.info("条件查询：type={}", type);
        List<Category> list = categoryService.listCategory(type);
        return Result.success(list);
    }

}

业务层方法与admin的相同，使用同一个

2. 根据分类ID查询菜品

Controller

package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
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.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @author Jie.
 * @description: TODO
 * @date 2024/9/25
 * @version: 1.0
 */
@RestController("userDishController")
@RequestMapping("/user/dish")
@Api(tags = "菜品管理")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    /**
     * 根据分类id查询菜品
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);
        List<DishVO> list = dishService.listWithFlavor(dish);
        return Result.success(list);
    }
}

Service

/**
* 根据菜品id查询菜品
*/
List<DishVO> listWithFlavor(Dish dish);

Impl

/**
     * 根据菜品id查询菜品
     */
    @Override
    public List<DishVO> listWithFlavor(Dish dish) {
        // 查询菜品
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Dish::getCategoryId, dish.getCategoryId());
        queryWrapper.eq(Dish::getStatus, StatusConstant.ENABLE);
        List<Dish> dishes = dishMapper.selectList(queryWrapper);
        List<DishVO> dishVOList = new ArrayList<>();
        for (Dish d : dishes) {
            DishVO dishVO = new DishVO();
            BeanUtils.copyProperties(d, dishVO);
            // 查询口味
            LambdaQueryWrapper<DishFlavor> flavorQueryWrapper = new LambdaQueryWrapper<>();
            flavorQueryWrapper.eq(DishFlavor::getDishId, d.getId());
            List<DishFlavor> flavors = dishFlavorMapper.selectList(flavorQueryWrapper);
            // 封装结果
            dishVO.setFlavors(flavors);
            dishVOList.add(dishVO);
        }
        return dishVOList;
    }

原文地址：https://blog.csdn.net/qq_73340809/article/details/142517241

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