首页轮播图功能开发

• 背景颜色：图片不是全屏的，左右两侧留空的部分则是使用背景颜色来填充的
• 商品 ID：某些轮播图直接跳转到商品
• 商品分类 ID：某些轮播图是跳转到分类页
• 轮播图类型：设置了是跳转到商品还是商品分类
• 是否展示：不删除，不要的时候直接设置为不展示

代码上相对简单，如下

package cn.mrcode.foodiedev.service.impl;

import cn.mrcode.foodiedev.mapper.CarouselMapper;
import cn.mrcode.foodiedev.pojo.Carousel;
import cn.mrcode.foodiedev.service.CarouselService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import tk.mybatis.mapper.entity.Example;

import java.util.List;

/**
 * @author mrcode
 * @date 2021/2/13 21:41
 */
@SuppressWarnings("SpringJavaInjectionPointsAutowiringInspection")
@Service
public class CarouselServiceImpl implements CarouselService {
    @Autowired
    private CarouselMapper carouselMapper;

    @Override
    public List<Carousel> queryAll(Integer isShow) {
        Example example = new Example(Carousel.class);
        example.orderBy("sort").desc();
        Example.Criteria criteria = example.createCriteria();
        criteria.andEqualTo("isShow", isShow);
        List<Carousel> carousels = carouselMapper.selectByExample(example);
        return carousels;
    }
}

package cn.mrcode.foodiedev.api.controller;

import cn.mrcode.foodiedev.common.enums.YesOrNo;
import cn.mrcode.foodiedev.common.util.JSONResult;
import cn.mrcode.foodiedev.pojo.Carousel;
import cn.mrcode.foodiedev.service.CarouselService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
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 mrcode
 * @date 2021/2/13 21:44
 */
@Api(value = "首页", tags = {"首页相关接口"})
@RestController
@RequestMapping("/index")
public class IndexController {
    @Autowired
    private CarouselService carouselService;

    @ApiOperation(value = "获取首页轮播图列表")
    @GetMapping("/carousel")
    public JSONResult carousel() {
        List<Carousel> carousels = carouselService.queryAll(YesOrNo.YES.type);
        return JSONResult.ok(carousels);
    }
}