Lucene入门

public class LuceneTest {//创建索引    @Test    public void test1() throws IOException {        //创建文档对象        Document document = new Document();        document.add(new StringField("id","1", Field.Store.YES));        document.add(new TextField("content","谷歌地图之父跳槽FaceBook", Field.Store.YES));        Document document1 = new Document();        document1.add(new StringField("id","2", Field.Store.YES));        document1.add(new TextField("content","谷歌地图字符加盟FaceBook", Field.Store.YES));        FSDirectory open = FSDirectory.open(new File("D:\\indexDir"));        Analyzer analyzer = new StandardAnalyzer();        IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);        IndexWriter writer = new IndexWriter(open, config);        writer.addDocument(document);        writer.addDocument(document1);        writer.commit();        writer.close();    }    @Test    public void test2() throws IOException {        Document document = new Document();        document.add(new StringField("id","1", Field.Store.YES));        document.add(new TextField("content","谷歌地图之父加盟FaceBook", Field.Store.YES));        FSDirectory open = FSDirectory.open(new File("D:\\indexDir"));        Analyzer analyzer = new IKAnalyzer();        IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);        IndexWriter writer = new IndexWriter(open, config);        writer.addDocument(document);        writer.commit();        writer.close();    }    //创建索引    @Test    public void test3() throws IOException {        List<Document> list = new ArrayList<>();        FieldType type = new FieldType();        type.setIndexed(true);//是否索引        type.setStored(true);//是否存储        type.setTokenized(true);//是否分词        Document d1 = new Document();        d1.add(new Field("id","1",type));        d1.add(new TextField("content","传智播客之父跳槽FaceBook，这是真的吗？", Field.Store.YES));        Document d2 = new Document();        d2.add(new Field("id","2", type));        d2.add(new TextField("content","谷歌地图之父加盟FaceBook", Field.Store.YES));        Document d3 = new Document();        d3.add(new Field("id","3",type));        d3.add(new TextField("content","谷歌地图创始人拉斯离开谷歌加盟Facebook", Field.Store.YES));        Document d4 = new Document();        d4.add(new Field("id","4",type));        d4.add(new TextField("content","谷歌地图之父跳槽Facebook与Wave项目取消有关", Field.Store.YES));        Document d5 = new Document();        d5.add(new Field("id","5",type));        TextField field = new TextField("content", "谷歌地图之父拉斯加盟社交网站Facebook", Field.Store.YES);        field.setBoost(10);        d5.add(field);        list.add(d1);        list.add(d2);        list.add(d3);        list.add(d4);        list.add(d5);        FSDirectory open = FSDirectory.open(new File("E:\\indexDir"));        Analyzer analyzer = new IKAnalyzer();        IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);        config.setOpenMode(IndexWriterConfig.OpenMode.CREATE);        IndexWriter writer = new IndexWriter(open, config);        writer.addDocuments(list);        writer.commit();        writer.close();    }    //查询索引    @Test    public void test4() throws ParseException, IOException {        QueryParser parser = new QueryParser("content", new IKAnalyzer());        Query query = parser.parse("谷歌");        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("E:\\indexDir"))));        TopDocs topDocs = searcher.search(query, Integer.MAX_VALUE);        System.out.println(topDocs.totalHits);        ScoreDoc[] docs = topDocs.scoreDocs;        for (ScoreDoc sd :                docs) {            System.out.println(sd.doc);            Document doc = searcher.doc(sd.doc);            System.out.println(doc.get("id"));            System.out.println(doc.get("content"));        }    }    @Test    public void test5() throws ParseException, IOException {        QueryParser content = new QueryParser("content", new IKAnalyzer());        Query query = content.parse("跳槽");        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("e:\\indexDir"))));        TopDocs docs = searcher.search(query, Integer.MAX_VALUE);        System.out.println(docs.totalHits);        ScoreDoc[] scoreDocs = docs.scoreDocs;        for (ScoreDoc scoreDoc:             scoreDocs) {            System.out.println(scoreDoc.doc);            Document doc = searcher.doc(scoreDoc.doc);            System.out.println(doc.get("id")+"-----------------"+doc.get("content"));        }    }    //词条查询    @Test    public void test6() throws IOException {        TermQuery query = new TermQuery(new Term("content", "谷歌地图之父加盟FaceBook"));        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("E:\\indexDir"))));        TopDocs docs = searcher.search(query, Integer.MAX_VALUE);        System.out.println(docs.totalHits);        ScoreDoc[] scoreDocs = docs.scoreDocs;        for (ScoreDoc sd:             scoreDocs) {            System.out.println(sd.doc);            System.out.println(sd.score);            Document doc = searcher.doc(sd.doc);            System.out.println(doc.get("id"));            System.out.println(doc.get("content"));        }    }    //模糊查询    @Test    public void test7() throws IOException {        WildcardQuery query = new WildcardQuery(new Term("content","*"+"吗"+"*"));        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("E:\\indexDir"))));        TopDocs topDocs = searcher.search(query, Integer.MAX_VALUE);        System.out.println("命中数目:"+topDocs.totalHits);        ScoreDoc[] docs = topDocs.scoreDocs;        for (ScoreDoc scoreDoc:docs) {            System.out.println("内置id："+scoreDoc.doc);            System.out.println("得分:"+scoreDoc.score);            Document doc = searcher.doc(scoreDoc.doc);            System.out.println(doc.get("id"));            System.out.println(doc.get("content"));        }    }    @Test    public void test8() throws IOException {        List<Document> list = new ArrayList<>();        Document document = new Document();        document.add(new StringField("id","1", Field.Store.YES));        list.add(document);        FSDirectory open = FSDirectory.open(new File("E:\\indexDir"));        IKAnalyzer analyzer = new IKAnalyzer();        IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);        IndexWriter writer = new IndexWriter(open, config);        writer.addDocuments(list);        writer.commit();        writer.close();    }    //相似度查询    @Test    public void test9() throws IOException {        FuzzyQuery query = new FuzzyQuery(new Term("content","胡歌"),2);        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("e:\\indexDir"))));        TopDocs search = searcher.search(query, Integer.MAX_VALUE);        System.out.println(search.totalHits);        ScoreDoc[] scoreDocs = search.scoreDocs;        for (ScoreDoc doc:             scoreDocs) {            System.out.println(doc.doc);            System.out.println(doc.score);            Document document = searcher.doc(doc.doc);            System.out.println(document.get("id"));            System.out.println(document.get("content"));        }    }    //查询索引库所有的内容    @Test    public void test10() throws IOException {        MatchAllDocsQuery query = new MatchAllDocsQuery();        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("e://indexDir"))));        TopDocs topDocs = searcher.search(query, Integer.MAX_VALUE);        ScoreDoc[] docs = topDocs.scoreDocs;        for (ScoreDoc sd :                docs) {            System.out.println(sd.doc);            System.out.println(sd.score);            Document doc = searcher.doc(sd.doc);            System.out.println(doc.get("id"));            System.out.println(doc.get("content"));        }    }    @Test    public void test11() throws IOException {        FieldType fieldType = new FieldType();        fieldType.setStored(true);        fieldType.setTokenized(true);        fieldType.setIndexed(true);        Document document = new Document();        document.add(new Field("id","1",fieldType));        document.add(new TextField("content","我就是祁双伟", Field.Store.YES));        FSDirectory open = FSDirectory.open(new File("e:\\indexDir"));        IKAnalyzer analyzer = new IKAnalyzer();        IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);        IndexWriter writer = new IndexWriter(open, config);        writer.updateDocument(new Term("id","4"),document);        writer.commit();        writer.close();    }    //删除索引    @Test    public void test12() throws IOException {        FSDirectory open = FSDirectory.open(new File("e:\\indexDir"));        IKAnalyzer analyzer = new IKAnalyzer();        IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);        IndexWriter writer = new IndexWriter(open, config);        writer.deleteAll();        writer.commit();        writer.close();    }    //高亮显示    @Test    public void test13() throws ParseException, IOException, InvalidTokenOffsetsException {        QueryParser parser = new QueryParser("content",new IKAnalyzer());        Query query = parser.parse("谷歌");//        MatchAllDocsQuery query = new MatchAllDocsQuery();        SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<font color='red'>", "</font>");        Highlighter highlighter = new Highlighter(formatter, new QueryScorer(query));        Sort sort = new Sort(new SortField("id", SortField.Type.LONG, false));        IndexSearcher searcher = new IndexSearcher(IndexReader.open(FSDirectory.open(new File("E:\\indexDir"))));        TopDocs topDocs = searcher.search(query, Integer.MAX_VALUE,sort);        ScoreDoc[] docs = topDocs.scoreDocs;        for (ScoreDoc sd :                docs) {            System.out.println(sd.doc);            Document document = searcher.doc(sd.doc);//            System.out.println(document.get("id"));            String s = highlighter.getBestFragment(new IKAnalyzer(), "content", document.get("content"));            System.out.println(s+"得分是："+sd.score);        }    }}