后端热门推荐商品接口实现

mybatis-plus分页配置

package com.java1234.config;

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * MybatisPlus配置类
 * @author java1234_小锋
 * @site www.java1234.com
 * @company 南通小锋网络科技有限公司
 * @create 2022-01-30 8:10
 */
@Configuration
public class MybatisPlusConfig {

    @Bean
    public PaginationInterceptor paginationInterceptor(){
        return new PaginationInterceptor();
    }
}

package com.java1234.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/***
 *
 * web项目配置类
 */
@Configuration
public class WebAppConfigurer implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/image/swiper/**").addResourceLocations("file:D:\\java1234-mall-v3\\swiperImgs\\");
        registry.addResourceHandler("/image/bigType/**").addResourceLocations("file:D:\\java1234-mall-v3\\bigTypeImgs\\");
        registry.addResourceHandler("/image/product/**").addResourceLocations("file:D:\\java1234-mall-v3\\productImgs\\");
    }
}

package com.java1234.controller;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.java1234.entity.Product;
import com.java1234.entity.R;
import com.java1234.service.IProductService;
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.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 商品Controller
 */
@RestController
@RequestMapping("/product")
public class ProductController {

    @Autowired
    private IProductService productService;

    /**
     * 查询轮播商品
     * @return
     */
    @GetMapping("/findSwiper")
    public R findSwiper(){
        List<Product> swiperProductList = productService.list(new QueryWrapper<Product>().eq("isSwiper", true).orderByAsc("swiperSort"));
        Map<String,Object> map=new HashMap<>();
        map.put("message",swiperProductList);
        return R.ok(map);
    }


    /**
     * 查询热门推荐商品8个
     * @return
     */
    @GetMapping("/findHot")
    public R findHot(){
        Page<Product> page=new Page<>(0,8);
        Page<Product> pageProduct= productService.page(page,new QueryWrapper<Product>().eq("isHot",true).orderByAsc("hotDateTime"));
        List<Product> hotProductList = pageProduct.getRecords();
        Map<String,Object> map=new HashMap<>();
        map.put("message",hotProductList);
        return R.ok(map);
    }
}