lucene创建索引

lucene创建索引：

1. import java.io.File;
2. import java.io.IOException;
3. import org.apache.lucene.analysis.Analyzer;
4. import org.apache.lucene.analysis.standard.StandardAnalyzer;
5. import org.apache.lucene.document.Document;
6. import org.apache.lucene.document.Field;
7. import org.apache.lucene.index.CorruptIndexException;
8. import org.apache.lucene.index.IndexWriter;
9. import org.apache.lucene.index.IndexWriterConfig;
10. import org.apache.lucene.index.IndexWriterConfig.OpenMode;
11. import org.apache.lucene.store.Directory;
12. import org.apache.lucene.store.FSDirectory;
13. import org.apache.lucene.store.LockObtainFailedException;
14. import org.apache.lucene.util.Version;
15. public class LuceneTest {
16.     String docsPath = null;   //文件位置
17.     String indexPath =null;   //索引位置
18.     public static void main(String[] args) {
19.         LuceneTest test = new LuceneTest();
20.         try {
21.             test.index();
22.         } catch (CorruptIndexException e) {
23.             // TODO Auto-generated catch block
24.             e.printStackTrace();
25.         } catch (LockObtainFailedException e) {
26.             // TODO Auto-generated catch block
27.             e.printStackTrace();
28.         } catch (IOException e) {
29.             // TODO Auto-generated catch block
30.             e.printStackTrace();
31.         }
32.     }
33.     /**
34.      * 先创立索引
35.      * @throws IOException
36.      * @throws LockObtainFailedException
37.      * @throws CorruptIndexException
38.      */
39.     public void index() throws CorruptIndexException, LockObtainFailedException, IOException
40.     {
41.         docsPath=”F:\\Search engine\\搜索引擎\\lucene-3.1.0-src\\lucene-3.1.0\\contrib\\analyzers\\common\\readm.txt”;
42.         indexPath=”D:\\mywork\\LuceneTest\\lucenedic”;
43.         if(docsPath==null)
44.         {
45.             System.err.println(“docsPath为空”);
46.             System.exit(1);
47.         }
48.         File docDir = new File(docsPath);
49.         Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_31);
50.         Directory dir = FSDirectory.open(new File(indexPath));
51.         IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_31, analyzer);
52.         /*IndexWriter indexWriter1 = new IndexWriter(dir,new IndexWriterConfig(Version.LUCENE_31,
53.                                     new WhitespaceAnalyzer(Version.LUCENE_31)));*/
54.         iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
55.         IndexWriter indexWriter = new IndexWriter(dir,iwc);
56.         Document doc = new Document();
57.         Field pathField = new Field(“path”,docDir.getPath(),Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS);
58.         pathField.setOmitTermFreqAndPositions(true);
59.         doc.add(pathField);
60.         indexWriter.addDocument(doc);
61.         indexWriter.close();
62.     }
63. }