瑞吉外卖项目实战---菜品管理的功能补全篇

菜品单独启售停售和批量启售停售（管理端）

package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.comment.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */

@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    /**
     * 停售与启用
     * @param ids
     * @return
     */
    @PostMapping("/status/0")
    public R<String> update1(long[] ids){
//        log.info(String.valueOf(ids));
        for (long id : ids) {
            Dish dish = new Dish();
            dish.setId(id);
            dish.setStatus(0);
            dishService.updateById(dish);
        }
        return R.success("修改成功");
    }
    @PostMapping("/status/1")
    public R<String> update2(long[] ids){
//        log.info(String.valueOf(ids));
        for (long id : ids) {
            Dish dish = new Dish();
            dish.setId(id);
            dish.setStatus(1);
            dishService.updateById(dish);
        }
        return R.success("修改成功");
    }

菜品删除和批量删除（管理端）

package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.comment.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */

@RestController
@RequestMapping("/dish")
@Slf4j

public class DishController {
    @Autowired
    private DishService dishService;


    /**
     * 菜品删除功能
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(long[] ids){
//        log.info(String.valueOf(ids));

        for (long id : ids) {
            dishService.removeById(id);
        }
        return R.success("删除成功");

    }
}

重点：就是要用数组在接受前端发送的数据，遍历执行就行。