找人做网站推广,建设网站通过什么赚钱,斗破苍穹制作公司,四川攀枝花网站建设elasticsearch组合多条件查询实现restful api以及java代码实现实际开发中#xff0c;基本都是组合多条件查询。elasticsearch提供bool来实现这种需求#xff1b;主要参数#xff1a;must文档 必须 匹配这些条件才能被包含进来。must_not文档 必须不 匹配这些条件才能被包含进…elasticsearch组合多条件查询实现restful api以及java代码实现实际开发中基本都是组合多条件查询。elasticsearch提供bool来实现这种需求主要参数must文档 必须 匹配这些条件才能被包含进来。must_not文档 必须不 匹配这些条件才能被包含进来。should如果满足这些语句中的任意语句将增加 _score 否则无任何影响。它们主要用于修正每个文档的相关性得分。filter必须 匹配但它以不评分、过滤模式来进行。这些语句对评分没有贡献只是根据过滤标准来排除或包含文档。OK我们这里多搞几个实例让大伙体验下最简单的 模糊查询标题含有“战”{query: {bool: {must:{match:{title:战}}}}}多条件的话{query: {bool: {must:[{match:{title:战}},{match:{content:星球}}]}}}就一条结果了java代码实现/*** 多条件查询* throws Exception*/Testpublic void searchMutil()throws Exception{SearchRequestBuilder srbclient.prepareSearch(film).setTypes(dongzuo);QueryBuilder queryBuilderQueryBuilders.matchPhraseQuery(title, 战);QueryBuilder queryBuilder2QueryBuilders.matchPhraseQuery(content, 星球);SearchResponse srsrb.setQuery(QueryBuilders.boolQuery().must(queryBuilder).must(queryBuilder2)).execute().actionGet();SearchHits hitssr.getHits();for(SearchHit hit:hits){System.out.println(hit.getSourceAsString());}}运行结果ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...{title:星球大战8最后的绝地武士,publishDate:2018-01-05,content:《星球大战最后的绝地武士》承接前作《星球大战原力觉醒》的剧情讲述第一军团全面侵袭之下蕾伊(黛西·雷德利 Daisy Ridley 饰)、芬恩(约翰·博耶加 John Boyega 饰)、波·达默龙(奥斯卡·伊萨克 Oscar Isaac 饰)三位年轻主角各自的抉 择和冒险故事。前作中觉醒强大原力的蕾伊独自寻访隐居的绝地大师卢克·天行者(马克·哈米尔 Mark Hamill 饰)在后者的指导下接受原力训练。芬恩接受了一项几乎不可能完成的任务为此他不得不勇闯敌营面对自己的过去。波·达默龙则要适应从战士向领袖的角色转换这一过程中他也将接受一些血的教训。,director:莱恩·约翰逊,price:55}must_not使用内容里不含有“武士”{query: {bool: {must:{match:{title:战}},must_not:{match:{content:武士}}}}}结果java代码实现/*** 多条件查询* throws Exception*/Testpublic void searchMutil2()throws Exception{SearchRequestBuilder srbclient.prepareSearch(film).setTypes(dongzuo);QueryBuilder queryBuilderQueryBuilders.matchPhraseQuery(title, 战);QueryBuilder queryBuilder2QueryBuilders.matchPhraseQuery(content, 武士);SearchResponse srsrb.setQuery(QueryBuilders.boolQuery().must(queryBuilder).mustNot(queryBuilder2)).execute().actionGet();SearchHits hitssr.getHits();for(SearchHit hit:hits){System.out.println(hit.getSourceAsString());}}结果一致should使用 提高得分前面{query: {bool: {must:[{match:{title:战}}]}}}得分情况我们看下我们加下should{query: {bool: {must:{match:{title:战}},should:[{match:{content:星球}},{range:{publishDate:{gte:2018-01-01}}}]}}}执行下自己看得分 不解释java代码实现/*** 多条件查询* throws Exception*/Testpublic void searchMutil3()throws Exception{SearchRequestBuilder srbclient.prepareSearch(film).setTypes(dongzuo);QueryBuilder queryBuilderQueryBuilders.matchPhraseQuery(title, 战);QueryBuilder queryBuilder2QueryBuilders.matchPhraseQuery(content, 星球);QueryBuilder queryBuilder3QueryBuilders.rangeQuery(publishDate).gt(2018-01-01);SearchResponse srsrb.setQuery(QueryBuilders.boolQuery().must(queryBuilder).should(queryBuilder2).should(queryBuilder3)).execute().actionGet();SearchHits hitssr.getHits();for(SearchHit hit:hits){System.out.println(hit.getScore():hit.getSourceAsString());}}执行省略filter过滤票价必须少于40{query: {bool: {must: {match: {title: 战}},filter: {range: {price: {lte:40}}}}}}执行java代码实现/*** 多条件查询* throws Exception*/Testpublic void searchMutil4()throws Exception{SearchRequestBuilder srbclient.prepareSearch(film).setTypes(dongzuo);QueryBuilder queryBuilderQueryBuilders.matchPhraseQuery(title, 战);QueryBuilder queryBuilder2QueryBuilders.rangeQuery(price).lte(40);SearchResponse srsrb.setQuery(QueryBuilders.boolQuery().must(queryBuilder).filter(queryBuilder2)).execute().actionGet();SearchHits hitssr.getHits();for(SearchHit hit:hits){System.out.println(hit.getSourceAsString());}}运行结果一致
