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ElasticSearch封装查询、多条件查询、模糊查询工具类
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這個(gè)EsTool類是根據(jù)自身業(yè)務(wù)寫(xiě)成的,因?yàn)闃I(yè)務(wù)暫時(shí)想法不難。
需要的主要是:1、精確查詢 ?(單/多條件) ??
? ? ? ? ? ? ? ? ? ? ? ? ? ? 2、模糊查詢 ?(單/多條件)
前提:Mapping全部設(shè)置"index":"not_analys",阻止分詞器去進(jìn)行分析字符串從而達(dá)到精確查詢的效果。
public class EsTool {public String index ="gtbdc2";public TransportClient getClient(){try {//設(shè)置集群名稱Settings settings = Settings.builder().put("cluster.name", "elasticsearch").build();//創(chuàng)建client@SuppressWarnings({ "resource", "unchecked" })TransportClient client = new PreBuiltTransportClient(settings).addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("0.0.0.0"), 9300));return client;} catch (Exception e) {// TODO: handle exceptione.printStackTrace();return null;}}/*** 根據(jù)文檔名、字段名、字段值查詢某一條記錄的詳細(xì)信息;query查詢* @param type 文檔名,相當(dāng)于oracle中的表名,例如:ql_xz;* @param key 字段名,例如:bdcqzh* @param value 字段值,如:“”* @return List* @author Lixin*/public List getQueryDataBySingleField(String type,String key,String value){TransportClient client = getClient();QueryBuilder qb = QueryBuilders.termQuery(key, value);SearchResponse response = client.prepareSearch(index).setTypes(type).setQuery(qb) .setFrom(0).setSize(10000).setExplain(true) .execute() .actionGet();return responseToList(client,response);}/*** 多條件 文檔名、字段名、字段值,查詢某一條記錄的詳細(xì)信息* @param type 文檔名,相當(dāng)于oracle中的表名,例如:ql_xz* @param map 字段名:字段值 的map* @return List* @author Lixin*/public List getBoolDataByMuchField(String type,Map<String,String> map){TransportClient client = getClient();BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();for (String in : map.keySet()) {//map.keySet()返回的是所有key的值String str = map.get(in);//得到每個(gè)key多對(duì)用value的值boolQueryBuilder.must(QueryBuilders.termQuery(in,str));}SearchResponse response = client.prepareSearch(index).setTypes(type).setQuery(boolQueryBuilder) .setFrom(0).setSize(10000).setExplain(true) .execute() .actionGet();return responseToList(client,response);}/*** 單條件 模糊查詢* @param type 文檔名,相當(dāng)于oracle中的表名,例如:ql_xz* @param key 字段名,例如:bdcqzh* @param value 字段名模糊值:如 *123* ;?123*;?123?;*123?;* @return List* @author Lixin*/public List getDataByillegible(String type,String key,String value){TransportClient client = getClient();WildcardQueryBuilder wBuilder = QueryBuilders.wildcardQuery(key, value);SearchResponse response = client.prepareSearch(index).setTypes(type).setQuery(wBuilder) .setFrom(0).setSize(10000).setExplain(true) .execute() .actionGet();return responseToList(client,response);}/*** 多條件 模糊查詢* @param type type 文檔名,相當(dāng)于oracle中的表名,例如:ql_xz* @param map 包含key:value 模糊值鍵值對(duì)* @return List* @author Lixin*/public List getDataByMuchillegible(String type,Map<String,String> map){TransportClient client = getClient();BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();for (String in : map.keySet()) {//map.keySet()返回的是所有key的值String str = map.get(in);//得到每個(gè)key多對(duì)用value的值boolQueryBuilder.must(QueryBuilders.wildcardQuery(in,str));}SearchResponse response = client.prepareSearch(index).setTypes(type).setQuery(boolQueryBuilder) .setFrom(0).setSize(10000).setExplain(true) .execute() .actionGet();return responseToList(client,response);}/*** 將查詢后獲得的response轉(zhuǎn)成list* @param client* @param response* @return*/public List responseToList(TransportClient client,SearchResponse response){SearchHits hits = response.getHits();List<Map<String, Object>> list = new ArrayList<Map<String,Object>>();for (int i = 0; i < hits.getHits().length; i++) {Map<String, Object> map = hits.getAt(i).getSource();list.add(map);}client.close();return list;}
}
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