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在线h5开发
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Github_lizhw
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@ -6,6 +6,7 @@ import org.apache.ibatis.annotations.Mapper;
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import org.apache.ibatis.annotations.Param;
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import java.util.List;
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import java.util.Map;
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/**
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* H5 组件 Mapper 接口
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@ -23,4 +24,13 @@ public interface H5ComponentDao extends BaseMapper<H5Component> {
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* @return 组件列表
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*/
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List<H5Component> selectTopComponentsByCategory(@Param("categoryId") Long categoryId, @Param("pageSize") Integer pageSize);
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}
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/**
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* 分页查询组件列表
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* @param page 分页对象
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* @param params 查询参数
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* @return 组件列表
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*/
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List<H5Component> selectPageList(@Param("page") com.baomidou.mybatisplus.extension.plugins.pagination.Page<H5Component> page,
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@Param("params") Map<String, Object> params);
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}
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@ -4,6 +4,7 @@ import cn.hutool.core.util.StrUtil;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.luban.api.dao.H5ComponentCategoryDao;
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import com.luban.api.dao.H5ComponentCategoryRelDao;
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import com.luban.api.dao.H5ComponentDao;
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import com.luban.api.dao.H5ComponentTagRelDao;
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@ -36,6 +37,7 @@ import java.util.stream.Collectors;
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public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Component> implements H5ComponentService {
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private final H5ComponentDao h5ComponentDao;
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private final H5ComponentCategoryDao h5ComponentCategoryDao;
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private final H5ComponentCategoryRelDao h5ComponentCategoryRelDao;
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private final H5ComponentTagRelDao h5ComponentTagRelDao;
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@ -47,40 +49,26 @@ public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Compon
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@Override
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public Page<H5ComponentVO> getPage(Integer page, Integer pageSize, String type, String keyword, Long categoryId, Long tagId) {
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Page<H5Component> mpPage = new Page<>(page, pageSize);
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LambdaQueryWrapper<H5Component> wrapper = new LambdaQueryWrapper<>();
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wrapper.eq(H5Component::getStatus, 1); // 只查询启用的组件
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wrapper.eq(StrUtil.isNotBlank(type), H5Component::getType, type);
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if (StrUtil.isNotBlank(keyword)) {
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wrapper.and(w -> w.like(H5Component::getName, keyword)
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.or().like(H5Component::getRemark, keyword));
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}
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// 按分类筛选
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//将参数封装成对象，方便后续加参数
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Map<String, Object> params = new HashMap<>();
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params.put("type", type);
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params.put("keyword", keyword);
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params.put("tagId", tagId);
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//categoryId 查询出所有子集一起查询
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List<Long> categoryIds = new ArrayList<>();
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if (categoryId != null) {
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List<Long> componentIds = getComponentIdsByCategory(categoryId);
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if (componentIds.isEmpty()) {
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return new Page<H5ComponentVO>(page, pageSize).setRecords(List.of());
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}
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wrapper.in(H5Component::getId, componentIds);
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categoryIds.add(categoryId);
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// 查询所有子分类ID
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List<Long> childCategoryIds = getChildCategoryIds(categoryId);
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categoryIds.addAll(childCategoryIds);
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}
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// 按标签筛选
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if (tagId != null) {
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List<Long> componentIds = getComponentIdsByTag(tagId);
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if (componentIds.isEmpty()) {
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return new Page<H5ComponentVO>(page, pageSize).setRecords(List.of());
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}
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wrapper.in(H5Component::getId, componentIds);
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}
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wrapper.orderByDesc(H5Component::getUsageCount)
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.orderByDesc(H5Component::getCreateTime);
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Page<H5Component> resultPage = baseMapper.selectPage(mpPage, wrapper);
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params.put("categoryIds", categoryIds);
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//使用xml sql 分页查询
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Page<H5Component> resultPage = new Page<>(page, pageSize);
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List<H5Component> componentList = h5ComponentDao.selectPageList(resultPage, params);
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resultPage.setRecords(componentList);
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Page<H5ComponentVO> voPage = new Page<>(resultPage.getCurrent(), resultPage.getSize(), resultPage.getTotal());
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List<H5ComponentVO> voList = resultPage.getRecords().stream()
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@ -90,6 +78,48 @@ public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Compon
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return voPage;
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}
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/**
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* 获取指定分类的所有子分类ID（优化版本-无缓存）
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* @param parentId 父分类ID
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* @return 子分类ID列表
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*/
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private List<Long> getChildCategoryIds(Long parentId) {
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//TODO 还有优化的空间
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// 一次性查询所有分类，只获取需要的字段（id和parentId）
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List<H5ComponentCategory> allCategories = h5ComponentCategoryDao.selectList(
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new LambdaQueryWrapper<H5ComponentCategory>()
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.select(H5ComponentCategory::getId, H5ComponentCategory::getParentId)
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);
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// 构建父分类到子分类的映射
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Map<Long, List<Long>> parentChildMap = allCategories.stream()
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.collect(Collectors.groupingBy(
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H5ComponentCategory::getParentId,
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Collectors.mapping(H5ComponentCategory::getId, Collectors.toList())
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));
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// 收集所有子分类ID
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Set<Long> allChildIds = new HashSet<>();
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collectChildIds(parentId, parentChildMap, allChildIds);
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return new ArrayList<>(allChildIds);
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}
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/**
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* 递归收集子分类ID
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* @param parentId 父分类ID
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* @param parentChildMap 父子关系映射
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* @param result 结果集合
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*/
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private void collectChildIds(Long parentId, Map<Long, List<Long>> parentChildMap, Set<Long> result) {
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List<Long> childIds = parentChildMap.getOrDefault(parentId, Collections.emptyList());
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for (Long childId : childIds) {
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result.add(childId);
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// 递归收集子分类的子分类
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collectChildIds(childId, parentChildMap, result);
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}
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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@ -131,7 +161,7 @@ public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Compon
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// 转换为实体对象
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H5Component component = H5ComponentConvert.INSTANCE.toEntity(dto);
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component.setUpdateTime(now);
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baseMapper.updateById(component);
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// 更新分类关联
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@ -217,7 +247,7 @@ public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Compon
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if (categoryIds == null || categoryIds.isEmpty()) {
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return new HashMap<>();
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}
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Map<Long, List<H5ComponentVO>> resultMap = new HashMap<>();
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for (Long categoryId : categoryIds) {
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List<H5Component> components = h5ComponentDao.selectTopComponentsByCategory(categoryId, pageSize);
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@ -226,7 +256,7 @@ public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Compon
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.toList();
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resultMap.put(categoryId, vos);
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}
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return resultMap;
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}
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@ -277,4 +307,4 @@ public class H5ComponentServiceImpl extends ServiceImpl<H5ComponentDao, H5Compon
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wrapper.eq(H5ComponentTagRel::getComponentId, componentId);
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h5ComponentTagRelDao.delete(wrapper);
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}
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}
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}
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@ -14,5 +14,40 @@
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ORDER BY usage_count DESC, create_time DESC
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LIMIT #{pageSize}
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</select>
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<!-- 分页查询组件列表 -->
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<select id="selectPageList" resultType="com.luban.api.entity.H5Component">
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SELECT hc.*
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FROM h5_component hc
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WHERE hc.status = 1
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<if test="params.type != null and params.type != ''">
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AND hc.type = #{params.type}
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</if>
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<if test="params.keyword != null and params.keyword != ''">
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AND (
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hc.name LIKE CONCAT('%', #{params.keyword}, '%')
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)
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</if>
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<if test="params.categoryIds != null and params.categoryIds.size() > 0">
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AND EXISTS (
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SELECT 1
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FROM h5_component_category_rel hccr
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WHERE hccr.component_id = hc.id
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AND hccr.category_id IN
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<foreach collection="params.categoryIds" item="categoryId" open="(" separator="," close=")">
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#{categoryId}
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</foreach>
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)
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</if>
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<if test="params.tagId != null">
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AND EXISTS (
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SELECT 1
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FROM h5_component_tag_rel hctr
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WHERE hctr.component_id = hc.id
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AND hctr.tag_id = #{params.tagId}
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)
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</if>
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ORDER BY hc.create_time DESC
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</select>
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</mapper>
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</mapper>
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