商品管理系统属性分组关联属性功能实现

清疚 2021-07-24 19:26 522阅读 0赞

# 一 分组控制器 AttrGroupController #

package com.atguigu.gulimall.product.controller;
    
    import com.atguigu.common.utils.PageUtils;
    import com.atguigu.common.utils.R;
    import com.atguigu.gulimall.product.entity.AttrEntity;
    import com.atguigu.gulimall.product.entity.AttrGroupEntity;
    import com.atguigu.gulimall.product.service.AttrAttrgroupRelationService;
    import com.atguigu.gulimall.product.service.AttrGroupService;
    import com.atguigu.gulimall.product.service.AttrService;
    import com.atguigu.gulimall.product.service.CategoryService;
    import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
    import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.*;
    
    import java.util.Arrays;
    import java.util.List;
    import java.util.Map;
    
    /**
     * @className: AttrGroupController
     * @description: 属性分组控制器
     * @date: 2020/11/1
     * @author: cakin
     */
    @RestController
    @RequestMapping("product/attrgroup")
    public class AttrGroupController {
        @Autowired
        private AttrGroupService attrGroupService;
    
        @Autowired
        private CategoryService categoryService;
    
        @Autowired
        AttrService attrService;
    
        @Autowired
        AttrAttrgroupRelationService relationService;
    
        /**
         * 功能描述：新增属性分组和属性的关联关系
         *
         * @param vos 属性分组和属性的关联关系
         * @return R 返回给前端的数据
         * @author cakin
         * @date 2020/11/4
         */
        @PostMapping("/attr/relation")
        public R addRelation(@RequestBody List<AttrGroupRelationVo> vos) {
            relationService.saveBatch(vos);
            return R.ok();
        }
    
        @GetMapping("/{catelogId}/withattr")
        public R getAttrGroupWithAttrs(@PathVariable("catelogId") Long catelogId) {
            // 1、查出当前分类下的所有属性分组，
            // 2、查出每个属性分组的所有属性
            List<AttrGroupWithAttrsVo> vos = attrGroupService.getAttrGroupWithAttrsByCatelogId(catelogId);
            return R.ok().put("data", vos);
        }
    
        /**
         * 功能描述：获取分组对应的基本属性
         *
         * @param attrgroupId 分组Id
         * @return R 返回给前端的数据
         * @author cakin
         * @date 2020/11/3
         */
        @GetMapping("/{attrgroupId}/attr/relation")
        public R attrRelation(@PathVariable("attrgroupId") Long attrgroupId) {
            List<AttrEntity> entities = attrService.getRelationAttr(attrgroupId);
            return R.ok().put("data", entities);
        }
    
        /**
         * 功能描述：获取属性分组中没有关联的其他属性
         *
         * @param attrgroupId 属性组Id
         * @param params      分页参数
         * @return R 返回给前端的分页数据
         * @author cakin
         * @date 2020/11/3
         */
        @GetMapping("/{attrgroupId}/noattr/relation")
        public R attrNoRelation(@PathVariable("attrgroupId") Long attrgroupId,
                                @RequestParam Map<String, Object> params) {
            PageUtils page = attrService.getNoRelationAttr(params, attrgroupId);
            return R.ok().put("page", page);
        }
    
        /**
         * 功能描述：删除属性分组和属性的对应关系
         *
         * @param vos 属性分组与属性的列表
         * @return R 返回给前端的数据
         * @author cakin
         * @date 2020/11/3
         */
        @PostMapping("/attr/relation/delete")
        public R deleteRelation(@RequestBody AttrGroupRelationVo[] vos) {
            attrService.deleteRelation(vos);
            return R.ok();
        }
    
        /**
         * 功能描述：商品属性组列表
         *
         * @param params    过滤条件
         * @param catelogId 商品分组Id
         * @return R 返回给前端的数据
         * @author cakin
         * @date 2020/11/1
         * @description:
         */
        @RequestMapping("/list/{catelogId}")
        public R list(@RequestParam Map<String, Object> params,
                      @PathVariable("catelogId") Long catelogId) {
            PageUtils page = attrGroupService.queryPage(params, catelogId);
            return R.ok().put("page", page);
        }
    
    
        /**
         * 功能描述：属性分组详情
         *
         * @param attrGroupId 属性分组Id
         * @return R 返回给前端的数据
         * @author cakin
         * @date 2020/11/1
         */
        @RequestMapping("/info/{attrGroupId}")
        public R info(@PathVariable("attrGroupId") Long attrGroupId) {
            AttrGroupEntity attrGroup = attrGroupService.getById(attrGroupId);
            Long catelogId = attrGroup.getCatelogId();
            // 分类的完整路径
            Long[] path = categoryService.findCatelogPath(catelogId);
            attrGroup.setCatelogPath(path);
            return R.ok().put("attrGroup", attrGroup);
        }
    
    
        /**
         * 保存
         */
        @RequestMapping("/save")
        public R save(@RequestBody AttrGroupEntity attrGroup) {
            attrGroupService.save(attrGroup);
            return R.ok();
        }
    
        /**
         * 修改
         */
        @RequestMapping("/update")
        public R update(@RequestBody AttrGroupEntity attrGroup) {
            attrGroupService.updateById(attrGroup);
    
            return R.ok();
        }
    
        /**
         * 删除
         */
        @RequestMapping("/delete")
        public R delete(@RequestBody Long[] attrGroupIds) {
            attrGroupService.removeByIds(Arrays.asList(attrGroupIds));
            return R.ok();
        }
    }

# 二 属性服务实现类 AttrServiceImpl #

package com.atguigu.gulimall.product.service.impl;
    
    import com.atguigu.common.constant.ProductConstant;
    import com.atguigu.common.utils.PageUtils;
    import com.atguigu.common.utils.Query;
    import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
    import com.atguigu.gulimall.product.dao.AttrDao;
    import com.atguigu.gulimall.product.dao.AttrGroupDao;
    import com.atguigu.gulimall.product.dao.CategoryDao;
    import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
    import com.atguigu.gulimall.product.entity.AttrEntity;
    import com.atguigu.gulimall.product.entity.AttrGroupEntity;
    import com.atguigu.gulimall.product.entity.CategoryEntity;
    import com.atguigu.gulimall.product.service.AttrService;
    import com.atguigu.gulimall.product.service.CategoryService;
    import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
    import com.atguigu.gulimall.product.vo.AttrRespVo;
    import com.atguigu.gulimall.product.vo.AttrVo;
    import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
    import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
    import com.baomidou.mybatisplus.core.metadata.IPage;
    import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
    import org.springframework.beans.BeanUtils;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import org.springframework.transaction.annotation.Transactional;
    import org.springframework.util.StringUtils;
    
    import java.util.Arrays;
    import java.util.Collection;
    import java.util.List;
    import java.util.Map;
    import java.util.stream.Collectors;
    
    
    @Service("attrService")
    public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {
    
        @Autowired
        AttrAttrgroupRelationDao relationDao;
    
        @Autowired
        AttrGroupDao attrGroupDao;
    
        @Autowired
        CategoryDao categoryDao;
    
        @Autowired
        CategoryService categoryService;
    
    
        @Override
        public PageUtils queryPage(Map<String, Object> params) {
            IPage<AttrEntity> page = this.page(
                    new Query<AttrEntity>().getPage(params),
                    new QueryWrapper<AttrEntity>()
            );
    
            return new PageUtils(page);
        }
    
        /**
         * 功能描述：保存属性
         *
         * @param attr 前端传过来的属性
         * @author cakin
         * @date 2020/11/1
         * @description: 不仅要保存基本数据，还要保存关联关系
         */
        @Transactional
        @Override
        public void saveAttr(AttrVo attr) {
            AttrEntity attrEntity = new AttrEntity();
            // 将页面传过来的值封装到AttrEntity中
            BeanUtils.copyProperties(attr, attrEntity);
            // 1 保存基本数据
            this.save(attrEntity);
            // 2 保存关联关系，销售属性，没有分组的概念，不用保存
            if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId() != null) {
                AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
                relationEntity.setAttrGroupId(attr.getAttrGroupId());
                relationEntity.setAttrId(attrEntity.getAttrId());
                relationDao.insert(relationEntity);
            }
        }
    
        /**
         * 功能描述：分页查询基本属性
         *
         * @param params    过滤条件
         * @param catelogId 分类Id
         * @param type      属性类别：基本属性或销售数据
         * @return PageUtils 分页查询结果
         * @author cakin
         * @date 2020/11/1
         */
        @Override
        public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
            // 类型作为一个查询条件：是基本属性还是销售属性
            QueryWrapper<AttrEntity> queryWrapper =
                    new QueryWrapper<AttrEntity>().eq("attr_type", "base".equalsIgnoreCase(type) ?
                            ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() : ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
            // 分类id是一个查询条件
            if (catelogId != 0) {
                queryWrapper.eq("catelog_id", catelogId);
            }
            // 关键字是一个查询条件
            String key = (String) params.get("key");
            if (!StringUtils.isEmpty(key)) {
                // attr_id为精确匹配  attr_name为模糊匹配
                queryWrapper.and((wrapper) -> {
                    wrapper.eq("attr_id", key).or().like("attr_name", key);
                });
            }
            // 初步分页查询结果
            IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);
            List<AttrEntity> records = page.getRecords();
            // 遍历查询结果，得到返回给前端的数据
            List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
                AttrRespVo attrRespVo = new AttrRespVo();
                // 先把基本数据拷贝到attrRespVo
                BeanUtils.copyProperties(attrEntity, attrRespVo);
    
                // 1 设置分组的名字，销售属性是不存在分组的
                if ("base".equalsIgnoreCase(type)) {
                    AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                    if (attrId != null && attrId.getAttrGroupId() != null) {
                        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
                        // 设置分组名称
                        attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                    }
    
                }
                // 2 设置分类的名字
                CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
                if (categoryEntity != null) {
                    attrRespVo.setCatelogName(categoryEntity.getName());
                }
                return attrRespVo;
            }).collect(Collectors.toList()); // 收集attrRespVo数据到列表respVos
    
            PageUtils pageUtils = new PageUtils(page);
            pageUtils.setList(respVos);
            return pageUtils;
        }
    
        /**
         * 功能描述：查询商品属性的详细信息
         *
         * @param attrId 属性id
         * @return AttrRespVo 返回给前端的数据
         * @author cakin
         * @date 2020/11/1
         */
        @Override
        public AttrRespVo getAttrInfo(Long attrId) {
            AttrRespVo respVo = new AttrRespVo();
            // 获得商品属性基本信息
            AttrEntity attrEntity = this.getById(attrId);
            BeanUtils.copyProperties(attrEntity, respVo);
            // 销售属性没有分组信息
            if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()) {
                // 1 设置分组信息
                AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
                if (attrgroupRelation != null) {
                    // 属性的分组id
                    respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
                    if (attrGroupEntity != null) {
                        // 属性分组名称
                        respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                    }
                }
            }
    
            // 2 设置分类信息
            Long catelogId = attrEntity.getCatelogId();
            Long[] catelogPath = categoryService.findCatelogPath(catelogId);
            // 设置分类全路径
            respVo.setCatelogPath(catelogPath);
    
            CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
            if (categoryEntity != null) {
                // 设置分类名称
                respVo.setCatelogName(categoryEntity.getName());
            }
    
            return respVo;
        }
    
        /**
         * 功能描述：修改属性
         *
         * @param attr 待修改的属性
         * @author cakin
         * @date 2020/11/1
         */
        @Transactional
        @Override
        public void updateAttr(AttrVo attr) {
            AttrEntity attrEntity = new AttrEntity();
            BeanUtils.copyProperties(attr, attrEntity);
            // 更新基本属性
            this.updateById(attrEntity);
    
            // 销售属性没有分组信息
            if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()) {
                //1 修改分组关联
                AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
    
                relationEntity.setAttrGroupId(attr.getAttrGroupId());
                relationEntity.setAttrId(attr.getAttrId());
    
                Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
                if (count > 0) {
                    // 根据属性Id修改分组Id
                    relationDao.update(relationEntity, new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
                } else {
                    // 如果没有配置，则插入
                    relationDao.insert(relationEntity);
                }
            }
        }
    
        /**
         * 根据分组id查找关联的所有基本属性
         *
         * @param attrgroupId 分组id
         * @return List<AttrEntity> 基本属性列表
         */
        @Override
        public List<AttrEntity> getRelationAttr(Long attrgroupId) {
            // 属性属性组关联列表
            List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
            // 获得属性Id的列表
            List<Long> attrIds = entities.stream().map((attr) -> {
                return attr.getAttrId();
            }).collect(Collectors.toList());
            // attrIds 不能为空
            if (attrIds == null || attrIds.size() == 0) {
                return null;
            }
            // 根据属性id的集合获得属性信息列表
            Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
            return (List<AttrEntity>) attrEntities;
        }
    
        /**
         * 功能描述：删除关联关系
         *
         * @param vos 属性分组id和属性id为对象的列表
         * @author cakin
         * @date 2020/11/3
         */
        @Override
        public void deleteRelation(AttrGroupRelationVo[] vos) {
            // 封装查询条件到entities，以实现批量删除
            List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
                AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
                // 属性拷贝
                BeanUtils.copyProperties(item, relationEntity);
                return relationEntity;
            }).collect(Collectors.toList());
            // 实现批量删除
            relationDao.deleteBatchRelation(entities);
        }
    
        /**
         * 获取当前分组没有关联的所有属性
         *
         * @param params 分页参数
         * @param attrgroupId 属性分组Id
         * @return 分页信息
         */
        @Override
        public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
            // 1 当前分组只能关联自己所属的分类里面的所有属性
            AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
            // 先得到分类Id
            Long catelogId = attrGroupEntity.getCatelogId();
            // 2 当前分组只能关联别的分组没有引用的属性
            // 2.1 当前分类下的其他分组
            List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
            List<Long> collect = group.stream().map(item -> {
                return item.getAttrGroupId();
            }).collect(Collectors.toList());
    
            // 2.2 这些分组关联的属性
            List<AttrAttrgroupRelationEntity> groupId = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
            List<Long> attrIds = groupId.stream().map(item -> {
                return item.getAttrId();
            }).collect(Collectors.toList());
    
            // 2.3 从当前分类的所有属性中移除这些属性；
            QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type", ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
            if (attrIds != null && attrIds.size() > 0) {
                wrapper.notIn("attr_id", attrIds);
            }
            // 封装关键字查询
            String key = (String) params.get("key");
            if (!StringUtils.isEmpty(key)) {
                wrapper.and((w) -> {
                    w.eq("attr_id", key).or().like("attr_name", key);
                });
            }
            IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
    
            PageUtils pageUtils = new PageUtils(page);
    
            return pageUtils;
        }
    
    }

# 三 属性分组管理DAO  AttrAttrgroupRelationDao #

package com.atguigu.gulimall.product.dao;
    
    import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
    import com.baomidou.mybatisplus.core.mapper.BaseMapper;
    import org.apache.ibatis.annotations.Mapper;
    import org.apache.ibatis.annotations.Param;
    
    import java.util.List;
    
    /**
     * @className: AttrAttrgroupRelationDao
     * @description: 属性属性分组关联DAO
     * @date: 2020/11/3
     * @author: cakin
     */
    @Mapper
    public interface AttrAttrgroupRelationDao extends BaseMapper<AttrAttrgroupRelationEntity> {
        /**
         * 功能描述：删除属性属性分组关联
         *
         * @param entities 封装删除条件
         * @author cakin
         * @date 2020/11/3
         */
        void deleteBatchRelation(@Param("entities") List<AttrAttrgroupRelationEntity> entities);
    }

# 四 属性分组管理Mapper AttrAttrgroupRelationDao.xml #

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    
    <mapper namespace="com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao">
    
        
        <resultMap type="com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity" id="attrAttrgroupRelationMap">
            <result property="id" column="id"/>
            <result property="attrId" column="attr_id"/>
            <result property="attrGroupId" column="attr_group_id"/>
            <result property="attrSort" column="attr_sort"/>
        </resultMap>
        
        <delete id="deleteBatchRelation">
    
            DELETE FROM `pms_attr_attrgroup_relation` WHERE
            <foreach collection="entities" item="item" separator=" OR ">
                (attr_id=#{item.attrId} AND attr_group_id=#{item.attrGroupId})
            </foreach>
        </delete>
    </mapper>

# 五 测试 #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/4c5203c420cf4a43a69bcc23d5759dde.png