使用整套SpringCloud组件，使用JWT结合非对称密钥实现分布式授权中心，使用F

package com.lee.search.service; import com.lee.search.Repository.GoodsRepository; import com.lee.search.client.BrandClient; import com.lee.search.client.CategoryClient; import com.lee.search.client.SpecificationClient; import com.lee.search.pojo.Goods; import com.lee.search.pojo.SearchRequest; import com.lee.search.pojo.SearchResult; import com.leyou.item.pojo.Brand; import com.leyou.item.pojo.Category; import com.leyou.item.pojo.SpecParam; import org.apache.commons.lang.StringUtils; import org.elasticsearch.index.query.BoolQueryBuilder; import org.elasticsearch.index.query.QueryBuilder; import org.elasticsearch.index.query.QueryBuilders; import org.elasticsearch.search.aggregations.Aggregation; import org.elasticsearch.search.aggregations.AggregationBuilders; import org.elasticsearch.search.aggregations.bucket.terms.LongTerms; import org.elasticsearch.search.aggregations.bucket.terms.StringTerms; import org.elasticsearch.search.sort.SortBuilders; import org.elasticsearch.search.sort.SortOrder; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.domain.PageRequest; import org.springframework.data.elasticsearch.core.aggregation.AggregatedPage; import org.springframework.data.elasticsearch.core.query.FetchSourceFilter; import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder; import org.springframework.stereotype.Service; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.stream.Collectors; /** * 聚合查询：根据页面请求的过滤条件被选项,动态显示 SearchResult 对象的数据(页面过滤可选项数据 和 分页商品搜索结果) */ @Service public class SearchService { @Autowired private GoodsRepository goodsRepository; @Autowired private CategoryClient categoryClient; @Autowired private BrandClient brandClient; @Autowired private SpecificationClient specClient; private Logger logger = LoggerFactory.getLogger(SearchService.class); public SearchResult search(SearchRequest searchRequest) { //定义分类和品牌存放的集合 List<Category> categories = null; List<Brand> brands = null; List<Map<String, Object>> specs = null; //1、创建原生查询过滤器 NativeSearchQueryBuilder queryBuilder = new NativeSearchQueryBuilder(); //2、指定查询的字段,即指定结果集返回的字段 queryBuilder.withSourceFilter(new FetchSourceFilter(new String[]{"id", "skus", "subTitle", "price"}, null)); //3、加入请求中的过滤条件 queryBuilder.withQuery(getFilterQueryBuilder(searchRequest)); //3、加入分页,es的分页从1开始 queryBuilder.withPageable(PageRequest.of(searchRequest.getPage() - 1, searchRequest.getSize())); //4、加入请求中的排序条件 String sortBy = searchRequest.getSortBy(); Boolean descending = searchRequest.getDescending(); if (StringUtils.isNotBlank(sortBy)) { queryBuilder.withSort(SortBuilders.fieldSort(sortBy).order(descending ? SortOrder.DESC : SortOrder.ASC)); } //5、构建聚合，品牌和分类都需要进行聚合,会得到2个聚合结果 String aggCname = "aggCname"; //聚合名称 String aggBname = "aggBname"; //聚合名称 queryBuilder.addAggregation(AggregationBuilders.terms(aggCname).field("cid3")); //field：聚合字段 ,根据最小的3级分类聚合 queryBuilder.addAggregation(AggregationBuilders.terms(aggBname).field("brandId")); //根据品牌id聚合,得到每个品牌在页面的过滤栏的信息 //进行聚合查询 AggregatedPage<Goods> resultPage = (AggregatedPage<Goods>) goodsRepository.search(queryBuilder.build()); //获得分类聚合结果 categories = getCategoryAggResult(aggCname, resultPage); //获得品牌聚合结果 brands = getBrandAggResult(aggBname, resultPage); //选中一个商品分类后才显示对应的规格参数过滤项，即仅当分类数为1时进行规格参数的聚合 if (categories != null && categories.size() == 1) { //获取规格参数聚合结果 specs = getSpecAggResult(categories); } return new SearchResult(resultPage.getTotalElements(), (long) resultPage.getTotalPages(), resultPage.getContent(), categories, brands, specs); } private QueryBuilder getFilterQueryBuilder(SearchRequest searchRequest) { try { //查询字段中包含布尔类型的查询构建器 BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery(); //获取searchRequest中的属性 String key = searchRequest.getKey(); Map<String, String> filter = searchRequest.getFilter(); //判断搜索条件是否为空 if (StringUtils.isBlank(key)) { return null; } //构建搜索条件 // 添加must的条件 此处为匹配Goods中的all字段 queryBuilder.must(QueryBuilders.matchQuery("all", key)); BoolQueryBuilder filterQueryBuilder = QueryBuilders.boolQuery(); if (!filter.isEmpty()) { for (Map.Entry<String, String> filterEntry : filter.entrySet()) { String name = filterEntry.getKey(); String value = filterEntry.getValue(); //过滤条件中，分类和品牌传入的都是id，要进行额外的判断 if (name != "cid2" && name != "brandId") { name = "specs." + name + ".keyword"; } filterQueryBuilder.must(QueryBuilders.termQuery(name, value)); //分词精确查询 } } queryBuilder.filter(filterQueryBuilder); return queryBuilder; } catch (Exception e) { logger.error("构建过滤参数出现异常：{}", e); e.printStackTrace(); } return null; } private List<Map<String, Object>> getSpecAggResult(List<Category> categories) { try { //传入的categories只有1个,查询该分类对应的所有规格参数 List<SpecParam> specParams = this.specClient.querySpecParam(null, categories.get(0).getId(), true, null); //进行聚合之后将每一个SpecParam对象拼为Map集合以{k:specparam.name,options:同名聚合结果,即一个Aggregation中的所有桶信息} NativeSearchQueryBuilder query = new NativeSearchQueryBuilder(); //对每一个规格参数都做聚合 specParams.forEach(specParam -> { String key = specParam.getName(); query.addAggregation(AggregationBuilders.terms(key) //聚合名称 .field("specs." + key + ".keyword")); //聚合的字段 }); AggregatedPage<Goods> search = (AggregatedPage<Goods>) this.goodsRepository.search(query.build()); //解析聚合结果,封装成集合返回 List<Map<String, Object>> specs = new ArrayList<>(); //将所有的聚合转为map形式，方便获取，key为specs中的每一个规格参数名称 Map<String, Aggregation> aggMap = search.getAggregations().asMap(); for (SpecParam specParam : specParams) { Map<String, Object> specMap = new HashMap<>(); String key = specParam.getName(); //根据key获取聚合Map中对应的每一个聚合，即每一个Aggregation对象 StringTerms aggregation = (StringTerms) aggMap.get(key); //将每一个聚合对象中的桶中的数据取出，封装为一个list集合，即为每一个规格参数所对应的�