解决跨域;修改MySQL语法错误;获取分类树形数据
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#n:db_spzx
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!<md> [1703518861000, 0, null, null, -2147483648, -2147483648]
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#n:information_schema
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!<md> [null, 0, null, null, -2147483648, -2147483648]
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#n:mysql
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!<md> [null, 0, null, null, -2147483648, -2147483648]
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#n:performance_schema
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!<md> [null, 0, null, null, -2147483648, -2147483648]
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#n:sys
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!<md> [null, 0, null, null, -2147483648, -2147483648]
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package cn.bunny.web.product;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class ProductApplication {
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public static void main(String[] args) {
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SpringApplication.run(ProductApplication.class, args);
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}
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}
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package cn.bunny.web.product.controller;
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import cn.bunny.common.spzx.model.entity.product.Category;
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import cn.bunny.common.spzx.model.entity.product.ProductSku;
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import cn.bunny.common.spzx.model.vo.common.Result;
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import cn.bunny.common.spzx.model.vo.common.ResultCodeEnum;
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import cn.bunny.common.spzx.model.vo.h5.IndexVo;
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import cn.bunny.web.product.service.CategoryService;
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import cn.bunny.web.product.service.ProductService;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import jakarta.annotation.Resource;
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import org.springframework.web.bind.annotation.CrossOrigin;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.List;
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@Tag(name = "首页接口管理")
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@RestController
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@RequestMapping(value = "/api/product/index")
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@CrossOrigin
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public class IndexController {
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@Resource
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private CategoryService categoryService;
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@Resource
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private ProductService productService;
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@Operation(summary = "获取首页数据")
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@GetMapping("")
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public Result index() {
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// 所有一级分类
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List<Category> categoryList = categoryService. selectOneCategory();
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// 根据销量排序，获取前十条激励
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List<ProductSku> productSkuList = productService.selectProductSkuBySal();
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// 封装数据到VO
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IndexVo indexVo = new IndexVo();
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indexVo.setCategoryList(categoryList);
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indexVo.setProductSkuList(productSkuList);
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return Result.build(indexVo, ResultCodeEnum.SUCCESS);
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}
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}
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package cn.bunny.web.product.mapper;
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import cn.bunny.common.spzx.model.entity.product.Category;
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import org.apache.ibatis.annotations.Mapper;
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import java.util.List;
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@Mapper
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public interface CategoryMapper {
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// 查询所有一级分类
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List<Category> selectOneCategory();
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// 1. 查询所有分类，返回list集合
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List<Category> findAll();
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}
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package cn.bunny.web.product.service;
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import cn.bunny.common.spzx.model.entity.product.Category;
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import java.util.List;
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public interface CategoryService {
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// 所有一级分类
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List<Category> selectOneCategory();
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// 获取分类树形数据
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List<Category> findCategoryTree();
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}
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package cn.bunny.web.product.service;
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import cn.bunny.common.spzx.model.entity.product.ProductSku;
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import java.util.List;
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public interface ProductService {
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// 根据销量排序，获取前十条激励
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List<ProductSku> selectProductSkuBySal();
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}
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package cn.bunny.web.product.service.imp;
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import cn.bunny.common.spzx.model.entity.product.Category;
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import cn.bunny.web.product.mapper.CategoryMapper;
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import cn.bunny.web.product.service.CategoryService;
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import jakarta.annotation.Resource;
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import org.springframework.stereotype.Service;
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import java.util.List;
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import java.util.Objects;
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import java.util.stream.Collectors;
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@Service
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public class CategoryServiceImpl implements CategoryService {
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@Resource
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private CategoryMapper categoryMapper;
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// 商品一级分类接口
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@Override
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public List<Category> selectOneCategory() {
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return categoryMapper.selectOneCategory();
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}
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// 获取分类树形数据
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@Override
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public List<Category> findCategoryTree() {
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// 1. 查询所有分类，返回list集合
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List<Category> allCategoryList = categoryMapper.findAll();
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// 2. 遍历所有分类list集合，通过parentId=0得到所有一级分类
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List<Category> categoryList = allCategoryList.stream().filter(item -> item.getParentId() == 0)
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.toList();
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// 3. 编辑所有一级分类list几个，条件判断；id=parentId，得到一级下面二级分类
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categoryList.forEach(category -> {
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List<Category> categories = allCategoryList.stream().filter(item -> Objects.equals(item.getParentId(), category.getId())).collect(Collectors.toList());
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category.setChildren(categories);
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categories.forEach(twoCategory -> {
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List<Category> threeCategorieList = allCategoryList.stream().filter(item -> Objects.equals(item.getParentId(), twoCategory.getId())).toList();
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twoCategory.setChildren(threeCategorieList);
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});
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});
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// 4. 遍历所有二级分类，条件判断；id=parentId得到二级下面三级分类
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return categoryList;
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}
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}
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package cn.bunny.web.product.service.imp;
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import cn.bunny.common.spzx.model.entity.product.ProductSku;
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import cn.bunny.web.product.mapper.ProductSkuMapper;
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import cn.bunny.web.product.service.ProductService;
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import jakarta.annotation.Resource;
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import org.springframework.stereotype.Service;
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import java.util.List;
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@Service
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public class ProductServiceImpl implements ProductService {
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@Resource
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private ProductSkuMapper productSkuMapper;
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@Override
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public List<ProductSku> selectProductSkuBySal() {
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return productSkuMapper.selectProductSkuBySale();
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}
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}
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