查询短语在单个字段上:
elasticsearch:
1 2 |
QueryStringQueryBuilder queryBuilder = new QueryStringQueryBuilder("汉语词法或其它汉语语言知识进行分词"); queryBuilder.analyzer("ik").field("title"); |
lucene4:
1 2 3 |
QueryParser qp = new QueryParser(Version.LUCENE_42, "title", new IKAnalyzer(true)); qp.setDefaultOperator(QueryParser.AND_OPERATOR); Query q = qp.parse("汉语词法或其它汉语语言知识进行分词"); |
查询短语在多个字段上查找:
elasticsearch:
1 2 |
QueryStringQueryBuilder queryBuilder = new QueryStringQueryBuilder("汉语词法或其它汉语语言知识进行分词"); queryBuilder.analyzer("ik").field("title").field("content"); |
lucene4:
1 2 3 4 5 6 7 |
Analyzer analyzer=new IKAnalyzer(true); MultiFieldQueryParser.parse(Version.LUCENE_42, new String[]{"汉语词法或其它汉语语言知识进行分词"},new String[]{"title","content"},analyzer); //默认在两个字段之间是或关系。如果需要改变两个字段之间的关系,请使用以下方法。 //查询字段必须在title字段,在content字段为或关系 BooleanClause.Occur[] flags = {BooleanClause.Occur.MUST,BooleanClause.Occur.SHOULD}; Analyzer analyzer=new IKAnalyzer(true); MultiFieldQueryParser.parse(Version.LUCENE_42,"汉语词法或其它汉语语言知识进行分词",new String[]{"title","content"},flags,analyzer); |
term query:
elasticsearch:
1 |
TermQueryBuilder t=new TermQueryBuilder("title", "中国"); |
lucene4:
1 2 |
Term term = new Term("title", "中国"); TermQuery query=new TermQuery(term); |
组合查询:
需求:查询在科技频道,体育频道下,文章类型为3,标题和内容包含”全面发展的中国”的文章
elasticsearch:
1 2 3 4 5 6 7 8 9 |
List<Long> channelids = new ArrayList<Long>(); channelids.add("4"); channelids.add("5"); FilteredQueryBuilder queryBuilder= QueryBuilders.filteredQuery( new QueryStringQueryBuilder("全面发展的中 国").analyzer("ik").field("title").filed("content"), FilterBuilders.boolFilter() .should(FilterBuilders.termsFilter("channelid", channelids)) .must(FilterBuilders.termFilter("model", 4)) ); |
lucene4:
1 2 3 4 5 6 7 8 9 10 11 12 13 |
Analyzer analyzer=new IKAnalyzer(true); Query query =MultiFieldQueryParser.parse(Version.LUCENE_42, new String[]{"全面发展的中国"},new String[]{"title","content"},analyzer); Term term1 = new Term("channelid", "4"); Term term2 = new Term("channelid", "5"); Term term3 = new Term("model", "4"); TermQuery q1 = new TermQuery(term1); TermQuery q2 = new TermQuery(term2); TermQuery q3 = new TermQuery(term3); BooleanQuery booleanQuery = new BooleanQuery(); booleanQuery.add(q1, BooleanClause.Occur.SHOULD); booleanQuery.add(q2, BooleanClause.Occur.SHOULD); booleanQuery.add(q3, BooleanClause.Occur.MUST); booleanQuery.add(query, BooleanClause.Occur.MUST); |
本文固定链接: http://www.chepoo.com/elasticsearch-lucene4-compare-query-syntax.html | IT技术精华网