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package org.lucene.index; import java.io.File; import java.io.IOException; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.document.Field; import org.apache.lucene.index.CorruptIndexException; import org.apache.lucene.index.IndexReader; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.index.IndexWriterConfig; import org.apache.lucene.index.Term; import org.apache.lucene.store.Directory; import org.apache.lucene.store.FSDirectory; import org.apache.lucene.store.LockObtainFailedException; import org.apache.lucene.util.Version; public class IndexUtil { String[] ids = { "aa", "bb", "cc", "dd", "ee", "ff", "gg" }; String[] emails = { "aaa@lucenes.com", "bbb@lucenes.com", "ccc@lucenes.com", "ddd@lucenes.com", "eee@lucenes.com", "fff@lucenes.com", "ggg@lucenes.com" }; String[] contents = { "aaaaaaaaaaaaaa", "bbbbbbbbbbbbbb", "ccccccccccccccc", "dddddddddddddd", "eeeeeeeeeeeeee", "fffffffffffffff", "gggggggggggggg" }; String[] names = { "zhangsan", "lisi", "wangwu", "zhaoliu", "tianqi", "zhaoba", "chenjiu" }; Integer[] attachs = { 1, 2, 5, 4, 6, 2, 3 }; Directory directory = null; public IndexUtil() { try { directory = FSDirectory.open(new File( "E:/luceneworkspace/Lucene2/path")); } catch (IOException e) { e.printStackTrace(); } } /** * 创建索引 */ public void index() { IndexWriter indexWriter = null; try { indexWriter = new IndexWriter(directory, new IndexWriterConfig( Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35))); indexWriter.deleteAll(); Document document = null; for (int i = 0; i < ids.length; i++) { document = new Document(); document.add(new Field("id", ids[i], Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS)); document.add(new Field("email", emails[i], Field.Store.YES, Field.Index.NOT_ANALYZED)); document.add(new Field("content", contents[i], Field.Store.NO, Field.Index.ANALYZED)); document.add(new Field("name", names[i], Field.Store.YES, Field.Index.NOT_ANALYZED)); indexWriter.addDocument(document); } } catch (CorruptIndexException e) { e.printStackTrace(); } catch (LockObtainFailedException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (indexWriter != null) indexWriter.close(); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } /** * 删除索引 */ public void delete() { IndexWriter indexWriter = null; try { indexWriter = new IndexWriter(directory, new IndexWriterConfig( Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35))); indexWriter.deleteDocuments(new Term("id", "aa")); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (LockObtainFailedException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (indexWriter != null) indexWriter.close(); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } /** * 恢复索引 */ public void undelete() { IndexReader indexReader = null; try { indexReader = IndexReader.open(directory, false); indexReader.undeleteAll(); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (LockObtainFailedException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (indexReader != null) indexReader.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 清空回收站索引 */ public void clear(){ IndexWriter indexWriter = null; try { indexWriter = new IndexWriter(directory, new IndexWriterConfig( Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35))); indexWriter.forceMergeDeletes(); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (LockObtainFailedException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (indexWriter != null) indexWriter.close(); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } /** * 更新索引 */ public void update(){ IndexWriter indexWriter = null; try { indexWriter = new IndexWriter(directory, new IndexWriterConfig( Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35))); Document doc=new Document(); doc.add(new Field("id", "hh", Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS)); doc.add(new Field("email", emails[2], Field.Store.YES, Field.Index.NOT_ANALYZED)); doc.add(new Field("content", contents[3], Field.Store.NO, Field.Index.ANALYZED)); doc.add(new Field("name", names[4], Field.Store.YES, Field.Index.NOT_ANALYZED)); indexWriter.updateDocument(new Term("id","aa"), doc); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (LockObtainFailedException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (indexWriter != null) indexWriter.close(); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } public void query() { try { IndexReader indexReader = IndexReader.open(directory); System.out.println("maxDoc:" + indexReader.maxDoc()); System.out.println("numDocs:" + indexReader.numDocs()); System.out.println("numDeleteDocs:"+indexReader.numDeletedDocs()); } catch (CorruptIndexException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }}
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