由于搜索多個索引沒辦法以定義好的Entity來接收quey的結(jié)果，所以keyword搜索時不能按照以前的方式來直接分頁搜索

AggregatedPage<ElasticService> elasticServices = elasticsearchTemplate.queryForPage(nativeSearchQuery, ElasticService.class);

所以這里選擇重寫搜索方法來自定義map返回結(jié)果，實(shí)現(xiàn)手動分頁和替換高亮搜索的結(jié)果文章來源地址http://www.zghlxwxcb.cn/news/detail-514119.html

		Pageable pageable = PageRequest.of(pageNum, pageSize, Sort.Direction.DESC, "update_time");
        // 關(guān)鍵字可在name字段進(jìn)行通配符搜索
        QueryBuilder nameWildcardNameQuery = QueryBuilders.wildcardQuery("name", "*" + keywords + "*");
        QueryBuilder categoryNameWildcardNameQuery = QueryBuilders.wildcardQuery("categoryName", "*" + keywords + "*");
        // name字段boost提高，從而match之后提高得分
        Map<String, Float> fieldMap = new HashMap<>();
        fieldMap.put("name", 5.0f);
        fieldMap.put("categoryName", 4.5f);
        fieldMap.put("namespace", 1.0f);
        fieldMap.put("description", 0.5f);
        QueryBuilder multiMatchQuery = QueryBuilders.multiMatchQuery(keywords).fields(fieldMap);
        // should不會影響搜索結(jié)果，但match多了可提高得分
       QueryBuilder keywordMatchQuery = QueryBuilders.boolQuery().should(nameWildcardNameQuery).should(categoryNameWildcardNameQuery).should(multiMatchQuery);


       //設(shè)置高亮條件
        HighlightBuilder highlightBuilder = new HighlightBuilder();
        highlightBuilder.requireFieldMatch(false); // 如果要多個字段高亮,這項要為false
        highlightBuilder.preTags("<span style=\"color:#2ba6ee\">"); // 高亮設(shè)置
        highlightBuilder.postTags("</span>");
        highlightBuilder.field("name");
        highlightBuilder.field("description");
        highlightBuilder.field("category_name");

        NativeSearchQuery nativeSearchQuery = new NativeSearchQueryBuilder()
                .withIndices("template_graph_contact", "tradition_ml_template_group")
                .withQuery(
                        QueryBuilders.boolQuery()
                                .must(keywordMatchQuery)
                )
                .withHighlightBuilder(highlightBuilder)
                .withPageable(pageable)
                .build();

        //查詢后自己構(gòu)造返回結(jié)果，手動分頁
        Map search = elasticsearchTemplate.query(nativeSearchQuery, response -> {
                    SearchHits hits = response.getHits();
                    Map map = new HashMap();
                    //手動分頁
                    double totalPage = Math.ceil(hits.totalHits / (double)pageSize);
                    map.put("totalElements", hits.totalHits);
                    map.put("totalPages", Double.valueOf(totalPage).intValue());
                    map.put("pageNumber", pageNum);
                    map.put("pageSize", pageSize);
                    List<Map> list = new ArrayList<>();
                    for (SearchHit hit : hits) {
                        if (hits.getHits().length <= 0) {
                            return null;
                        }
                        Map<String, Object> source = hit.getSourceAsMap();

                        //將高亮部分進(jìn)行替換
                        HighlightField name = hit.getHighlightFields().get("name");
                        HighlightField description = hit.getHighlightFields().get("description");
                        HighlightField categoryName = hit.getHighlightFields().get("category_name");
                        if (name != null) {
                            source.replace("name", name.fragments()[0].toString());
                        }
                        if (description != null) {
                            source.replace("description", description.fragments()[0].toString());
                        }
                        if (categoryName != null) {
                            source.replace("category_name", categoryName.fragments()[0].toString());
                        }
                        list.add(source);
                    }
                    map.put("source", list);
                    return map;
                });

到了這里，關(guān)于elasticsearch使用template搜索多個索引并且高亮返回結(jié)果的文章就介紹完了。如果您還想了解更多內(nèi)容，請在右上角搜索TOY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！