Luncene查询

Luncene查询

public class TestQuery {  @Test  //单字段查询   public void query1() throws IOException{  Query query = new TermQuery(new Term("author","张朝"));  testQuery(query);  }  //多字段查询   @Test  public void query2() throws ParseException, IOException{ Version version = Version.LUCENE_44; Analyzer analyzer = new StandardAnalyzer(version); String fields[] = {"title","content"}; String keywords = "全文"; QueryParser  queryParser =  new  MultiFieldQueryParser(version,fields, analyzer); Query query = queryParser.parse(keywords); testQuery(query);   }  //范围查询   @Test  public void query3() throws IOException{  Query query = NumericRangeQuery.newIntRange("id", 1,5,false,false);  testQuery(query);    }  //通配符查询   @Test  public void query4() throws IOException{//?代表单个字符,*号代理多个字符   Query  query = new WildcardQuery(new Term("title","luce*"));  testQuery(query);  }  //所有查询   @Test  public void query5() throws IOException{  Query query = new MatchAllDocsQuery();  testQuery(query);  }  //模糊查询   @Test  public void query6() throws IOException{  Query query = new FuzzyQuery(new Term("author",""),2);  testQuery(query);  }  //短语查询    @Test  public void query7() throws IOException{  PhraseQuery  query = new PhraseQuery();  query.add(new Term("title","lucene"));      query.add(new Term("title","全"));      query.setSlop(10);  testQuery(query);   }    //布尔查询   @Test  public void query8() throws IOException, ParseException{Query query1 = new TermQuery(new Term("author","张朝"));    Version version = Version.LUCENE_44;    Analyzer analyzer = new StandardAnalyzer(version);    String fields[] = {"title","content"};String keywords = "全文";QueryParser  queryParser =  new  MultiFieldQueryParser(version,fields, analyzer);Query query2 = queryParser.parse(keywords);BooleanQuery booleanQuery = new BooleanQuery();booleanQuery.add(query1,Occur.MUST);booleanQuery.add(query2,Occur.MUST);testQuery(booleanQuery);  }        public void testQuery(Query query) throws IOException{     Directory directory=FSDirectory.open(new File("D://luceneDirluceneDir")); IndexReader indexReader=DirectoryReader.open(directory); IndexSearcher indexSearcher=new IndexSearcher(indexReader); TopDocs topDocs=indexSearcher.search(query,100);System.out.println("总记录数...=="+topDocs.totalHits);ScoreDoc scoreDocs []=topDocs.scoreDocs;for(ScoreDoc scoreDoc:scoreDocs){int docID=scoreDoc.doc;Document document=indexSearcher.doc(docID);System.out.println(document.get("id"));System.out.println(document.get("title"));System.out.println(document.get("content"));System.out.println(document.get("author"));}      }}