package?cn.jiayen.Dao;

import?java.io.IOException;
import?java.util.ArrayList;
import?java.util.List;

import?org.apache.lucene.analysis.Analyzer;
import?org.apache.lucene.document.Document;
import?org.apache.lucene.index.CorruptIndexException;
import?org.apache.lucene.index.IndexWriter;
import?org.apache.lucene.index.IndexWriter.MaxFieldLength;
import?org.apache.lucene.index.Term;
import?org.apache.lucene.queryParser.MultiFieldQueryParser;
import?org.apache.lucene.queryParser.QueryParser;
import?org.apache.lucene.search.IndexSearcher;
import?org.apache.lucene.search.Query;
import?org.apache.lucene.search.ScoreDoc;
import?org.apache.lucene.search.TopDocs;
import?org.apache.lucene.util.Version;

import?cn.jiayen.Util.LuceneUtil;
import?cn.jiayen.domain.Article;
import?cn.jiayen.domain.QueryResult;

public?class?LuceneDao?implements?LuceneDaoInterFace?{
	IndexWriter?indexWriter?=?LuceneUtil.getIndexWriter（）;
	//添加索引庫
	@Override
	public?void?save（Article?article）{
			try?{
				indexWriter.addDocument（LuceneUtil.getArticle2doucment（article））;
				indexWriter.commit（）;
			}?catch?（IOException?e）?{
				LuceneUtil.rollBack（）;
				e.printStackTrace（）;
			}
	}
	@Override
	public?void?delete（Integer?id）{
//		IndexWriter?indexWriter?=?LuceneUtil.getIndexWriter（）;
		Term?term?=?new?Term（“id“?id.toString（））;
		try?{
			indexWriter.deleteDocuments（term）;
			indexWriter.commit（）;
		}catch?（IOException?e）?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace（）;
		}
	}
	@Override
	public?void?update（Article?article）{
		//更新是先刪除，再創建
//		IndexWriter?indexWriter?=?LuceneUtil.getIndexWriter（）;
		Term?term?=?new?Term（“id“?article.getId（）.toString（））;
		try?{
			indexWriter.updateDocument（term?LuceneUtil.getArticle2doucment（article））;
		}catch?（IOException?e）?{
			e.printStackTrace（）;
		}
	}
	@Override
	public??QueryResult
?query（String?queryStringint?firstResult?int?maxResult）{
		IndexSearcher?indexSearcher?=?null;
		try?{
			//把查詢結構轉換為Query對象
			QueryParser?queryParser?=?new?MultiFieldQueryParser（Version.LUCENE_30new?String[]{“content““title“}?LuceneUtil.getAnalyzer（））;
			Query?query?=?queryParser.parse（queryString）;
			//執行查詢結果
			indexSearcher?=?new?IndexSearcher（LuceneUtil.getDirecotry（））;
			TopDocs?topDocs?=?indexSearcher.search（query?1000）;
			int?count?=?topDocs.totalHits;
			ScoreDoc[]?scoreDocs?=?topDocs.scoreDocs;
			//分頁處理
			int?endIndex?=?Math.min（firstResult+maxResult?scoreDocs.length）;
			//處理查詢結果
			List
?list?=?new?ArrayList
（）;
			for?（int?i?=?firstResult;?i?//				float?score?=?scoreDocs[i].score;//相關度得分
				//根據編號獲取document對象
				int?docNo?=?scoreDocs[i].doc;//內部編號
				Document?document??=?indexSearcher.doc（docNo）;
				//把document對象轉換為article添加到集合
				Article?article?=?LuceneUtil.getDoucment2article（document）;
				list.add（article）;
			}
			return?new?QueryResult
（list?count）;
		}?catch?（Excep

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????649??2013-02-23?13:19??Lunece\.classpath

?????文件????????382??2013-02-23?13:16??Lunece\.project

?????文件????????629??2013-02-23?13:16??Lunece\.settings\org.eclipse.jdt.core.prefs

?????文件???????4806??2013-02-23?20:43??Lunece\bin\cn\jiayen\Dao\LuceneDao.class

?????文件????????411??2013-02-23?18:10??Lunece\bin\cn\jiayen\Dao\LuceneDaoInterFace.class

?????文件????????971??2013-02-23?13:19??Lunece\bin\cn\jiayen\domain\Article.class

?????文件???????1176??2013-02-23?18:13??Lunece\bin\cn\jiayen\domain\QueryResult.class

?????文件????????829??2013-02-23?15:26??Lunece\bin\cn\jiayen\lunece\Lucene$1.class

?????文件???????6159??2013-02-23?15:26??Lunece\bin\cn\jiayen\lunece\Lucene.class

?????文件???????3221??2013-02-23?20:39??Lunece\bin\cn\jiayen\Test\LuceneDaoTest.class

?????文件????????934??2013-02-23?19:57??Lunece\bin\cn\jiayen\Util\LuceneUtil$1.class

?????文件???????4015??2013-02-23?19:57??Lunece\bin\cn\jiayen\Util\LuceneUtil.class

?????文件?????????20??2013-02-23?20:34??Lunece\indexDir\segments.gen

?????文件???????1468??2013-02-23?20:34??Lunece\indexDir\segments_55

?????文件??????22106??2013-02-23?20:30??Lunece\indexDir\_3m.cfs

?????文件?????????16??2013-02-23?20:32??Lunece\indexDir\_3m_1.del

?????文件????????759??2013-02-23?20:30??Lunece\indexDir\_3n.cfs

?????文件????????759??2013-02-23?20:30??Lunece\indexDir\_3o.cfs

?????文件????????759??2013-02-23?20:30??Lunece\indexDir\_3p.cfs

?????文件????????407??2013-02-23?20:32??Lunece\indexDir\_3q.cfs

?????文件??????????9??2013-02-23?20:33??Lunece\indexDir\_3q_1.del

?????文件????????433??2013-02-23?20:33??Lunece\indexDir\_3r.cfs

?????文件??????????9??2013-02-23?20:34??Lunece\indexDir\_3r_1.del

?????文件????????407??2013-02-23?20:34??Lunece\indexDir\_3s.cfs

?????文件?????200780??2013-02-23?13:16??Lunece\lib\lucene-analyzers-3.0.1.jar

?????文件????1025635??2013-02-23?13:16??Lunece\lib\lucene-core-3.0.1.jar

?????文件??????46963??2013-02-23?13:16??Lunece\lib\lucene-highlighter-3.0.1.jar

?????文件??????27626??2013-02-23?13:16??Lunece\lib\lucene-memory-3.0.1.jar

?????文件???????3297??2013-02-23?20:43??Lunece\src\cn\jiayen\Dao\LuceneDao.java

?????文件????????385??2013-02-23?18:10??Lunece\src\cn\jiayen\Dao\LuceneDaoInterFace.java

............此處省略28個文件信息