1 @Test
2 public void indexSearch() throws IOException, ParseException {
3
4 //Termquery:精确string查询
5 // Query termQuery = new TermQuery(new Term("id","1"));
6 // doSearch(termQuery);
7
8 //数值范围查询
9 // Query rangeQuery = FloatPoint.newRangeQuery("price",55,56);
10 // doSearch(rangeQuery);
11
12 //组合查询
13 /*Query q1 = new TermQuery(new Term("description","java"));
14 Query q2 = new TermQuery(new Term("name","java"));
15
16 BooleanQuery.Builder builder = new BooleanQuery.Builder();
17 builder.add(new BooleanClause(q1, Occur.MUST));
18 builder.add(new BooleanClause(q2, Occur.MUST_NOT));
19 doSearch(builder.build());*/
20
21
22 //queryparser,需要指定分词器
23 /*QueryParser parser = new QueryParser("description",new StandardAnalyzer());
24 Query query = parser.parse("lucene");
25 query = parser.parse("description:lucene AND name:lucene");
26 doSearch(query);*/
27
28
29 //多域查询
30 //默认的搜索域,或的关系
31 String[] fields = {"name","description"};
32 MultiFieldQueryParser parser = new MultiFieldQueryParser(fields,new StandardAnalyzer());
33 Query query = parser.parse("lucene");
34 // query = parser.parse("description:lucene AND name:lucene");
35 // query = parser.parse("description:lucene NOT name:lucene");
36 query = parser.parse("lucene java");//以或的关系在域中搜索
37 doSearch(query);
38 }
1 private void doSearch (Query query) {
2 Directory directory;
3 try {
4 directory = FSDirectory.open(Paths.get("F:/luceneIndex"));
5
6 IndexReader reader = DirectoryReader.open(directory);
7 //创建IndexSearcher
8 IndexSearcher searcher = new IndexSearcher(reader);
9
10 //10表示显示的条数
11 TopDocs topDocs = searcher.search(query,10);
12 long count = topDocs.totalHits;
13 System.out.println("匹配的总条数是----" + count);
14
15 //根据相关度排序后的结果
16 ScoreDoc[] docs = topDocs.scoreDocs;
17 for (ScoreDoc scoreDoc : docs) {
18 int docId = scoreDoc.doc;
19 Document document = searcher.doc(docId);
20 System.out.println("id----"+document.get("id"));
21 System.out.println("name----"+document.get("name"));
22 /*System.out.println("price----"+document.get("price"));
23 System.out.println("pic----"+document.get("pic"));
24 System.out.println("description----"+document.get("description"));*/
25 System.out.println("======================");
26 }
27 reader.close();
28 } catch (IOException e) {
29 // TODO Auto-generated catch block
30 e.printStackTrace();
31 }
32
33 }
需要注意的组合查询的api变化,与老版本的直接new BooleanQuery()相比变化还是蛮大的