我是彈性搜索的新手，到目前為止我正在閱讀文檔，它很好，但我無法編寫按范圍獲取的方法，下面是一種按 ID 獲取的方法，它運行良好，但我如何才能做到這一點以獲得與價格范圍匹配的數據列表。 public Map<String, Object> getTourById(String id){ GetRequest getRequest = new GetRequest(INDEXTOUR, TYPETOUR, id); GetResponse getResponse = null; try { getResponse = restHighLevelClient.get(getRequest); } catch (java.io.IOException e){ e.printStackTrace(); e.getLocalizedMessage(); } Map<String, Object> sourceAsMap = getResponse.getSourceAsMap(); return sourceAsMap; }上面的方法現在工作正常下面是按范圍獲取并返回與價格匹配的數據的方法 public Map<String, Object> getTourByPriceRange(int minPrice, int maxPrice) { GetRequest getRequest = new GetRequest(INDEXTOUR, TYPETOUR, "requires an ID"); QueryBuilder qb = QueryBuilders .rangeQuery("price") .from(minPrice) .to(maxPrice) .includeLower(true) .includeUpper(true); GetResponse getResponse = null; try { getResponse = restHighLevelClient.get(getRequest); } catch (java.io.IOException e) { e.printStackTrace(); e.getLocalizedMessage(); } Map<String, Object> sourceAsMap = getResponse.getSourceAsMap(); return sourceAsMap; }在上述方法中，只有查詢構建器是準確的，我想得到的結果是一組價格落在給定范圍內的數據。{ "departure": { "city": "\u0438\u043d\u0441\u043a", "date": "2018-08-10" }, "extras": [], "hotel": { "beach": { "distance": 0, "type": "\u041f\u0435\u0447\u0430\u043d\u044b\u0439" }, "country": "\u0413\u0440\u0446\u0438\u044f", "distanceToAirport": 0, "facilities": [ "Standard Without Balcony" ],
1 回答
藍山帝景
TA貢獻1843條經驗 獲得超7個贊
到目前為止做得很好??！為了發出搜索請求，您需要使用SearchRequest而不是GetRequest通過 ID 檢索單個文檔。
QueryBuilder qb = QueryBuilders
.rangeQuery("price")
.from(minPrice)
.to(maxPrice)
.includeLower(true)
.includeUpper(true);
SearchRequest searchRequest = new SearchRequest(INDEXTOUR);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(qb);
searchRequest.types(TYPETOUR);
searchRequest.source(searchSourceBuilder);
SearchResponse searchResponse = null;
try {
searchResponse = restHighLevelClient.search(searchRequest);
} catch (java.io.IOException e) {
e.printStackTrace();
e.getLocalizedMessage();
}
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