lucene中文分詞搜尋的核心代碼

標籤：search   ati   image   parse   out   public   bsp   分詞器   att   

    public static void search(String indexDir,String q)throws Exception{        Directory dir=FSDirectory.open(Paths.get(indexDir));        IndexReader reader=DirectoryReader.open(dir);        IndexSearcher is=new IndexSearcher(reader);        // Analyzer analyzer=new StandardAnalyzer(); // 標準分詞器        SmartChineseAnalyzer analyzer=new SmartChineseAnalyzer();        QueryParser parser=new QueryParser("desc", analyzer);        Query query=parser.parse(q);        long start=System.currentTimeMillis();        TopDocs hits=is.search(query, 10);        long end=System.currentTimeMillis();        System.out.println("匹配 "+q+" ，總共花費"+(end-start)+"毫秒"+"查詢到"+hits.totalHits+"個記錄");                QueryScorer scorer=new QueryScorer(query);        Fragmenter fragmenter=new SimpleSpanFragmenter(scorer);        SimpleHTMLFormatter simpleHTMLFormatter=new SimpleHTMLFormatter("<b><font color=‘red‘>","</font></b>");        Highlighter highlighter=new Highlighter(simpleHTMLFormatter, scorer);        highlighter.setTextFragmenter(fragmenter);        for(ScoreDoc scoreDoc:hits.scoreDocs){            Document doc=is.doc(scoreDoc.doc);            System.out.println(doc.get("city"));            System.out.println(doc.get("desc"));            String desc=doc.get("desc");            if(desc!=null){                TokenStream tokenStream=analyzer.tokenStream("desc", new StringReader(desc));                System.out.println(highlighter.getBestFragment(tokenStream, desc));            }        }        reader.close();    }

 

 

lucene中文分詞搜尋的核心代碼