Lucene不是一个完整的全文索引应用,而是是一个用Java写的全文索引引擎工具包,它可以方便的嵌入到各种应用中实现针对应用的全文索引/检索功能。
为了更快的体验lucene.本文作者写了一个比较简单的类.大家可以上http://www.bt285.cn BT下载 或是http://www.5a520.cn 小说520网看看其效果.

 

public class BtLucene {
    
        
private static Logger logger = Logger.getLogger(BtLucene.class);
        
        
public static String[] StopStrs = {"BT285","BT软件","BT电影","BT下载"};
        
        
/**
         * 查询
         * 
@param queryStr
         * 
@param lucennePath
         * 
@return
         * 
@throws Exception
         
*/

        
public LuceneModel query(String queryStr,String lucennePath) throws Exception {        
            String queryUTF8 
= URLDecoder.decode(queryStr,"UTF-8"); 
            LuceneModel luceneModel 
= new LuceneModel();
            List
<LuceneInfo> lucneneInfoList = new ArrayList<LuceneInfo>();
            
long begin = System.currentTimeMillis();
            Document doc 
= new Document();
            StandardAnalyzer analyzer 
= new StandardAnalyzer(StopStrs);
            
// 一段简单的检索代码
            QueryParser queryParser = new QueryParser("title", analyzer);
            Query query 
= queryParser.parse(queryUTF8);
            
// 检索
            Searcher searcher = new IndexSearcher(lucennePath);// "index"指定索引文件位置
            Hits hits = searcher.search(query);
            
int size = hits.length();
            
// 打印结果值集
            if(logger.isDebugEnabled()){
                logger.debug(
"result size is " + size);
            }

            luceneModel.setSize(size);
            
for (int i = 0; i < size; i++{                        
                LuceneInfo lucneneInfo 
= new LuceneInfo();
                doc 
= hits.doc(i);
                String id 
= doc.get("id");
                String title 
= doc.get("title");
                String[] splitTitle 
= title.split(queryUTF8);
                lucneneInfo.setId(id);
                
if(splitTitle.length >1)
                    lucneneInfo.setTitle(splitTitle[
0]+ "<font color=#C60A00>" +queryUTF8 +"</font>" + splitTitle[1]);
                
else
                    lucneneInfo.setTitle(splitTitle[
0]+ "<font color=#C60A00>" +queryUTF8 +"</font>");
                lucneneInfo.setTrip(title);
                lucneneInfoList.add(lucneneInfo);
                
if(i==200)
                    
break;
            }

            
long needsTime = (System.currentTimeMillis()-begin);
            
long compiteTime = needsTime/1000;
            luceneModel.setTime(String.valueOf(compiteTime));
            luceneModel.setLuceneInfoList(lucneneInfoList);
            logger.info(
"query the " + queryUTF8 + " needs " + needsTime +" ms" );
            
return luceneModel;
        }


        
        
/**
         * 建立索引
         * 
@throws Exception
         
*/

        
public void batchCreate() throws Exception {
            Configure.propertiesConfigure();
            BtBatchContentCreate contentCreate 
= new BtBatchContentCreate();
            ClassPathXmlApplicationContext appContext 
= new ClassPathXmlApplicationContext(
                    
"./mysqlContext.xml");
            WNewsDAO newsDAO 
= (WNewsDAO) appContext.getBean("wNewDaoProxy");
            Bt285DAO bt285DAO 
= (Bt285DAO) appContext.getBean("bt285DAO");
            contentCreate.setNewsDAO(newsDAO);
            contentCreate.setBt285DAO(bt285DAO);
            LieService lieService 
= (LieService) appContext.getBean("lieService");
            contentCreate.setLieService(lieService);
            StandardAnalyzer analyzer 
= new StandardAnalyzer(StopStrs);
            IndexWriter writer 
= new IndexWriter(Configure.getCreateBtLucenePath(), analyzer, true);

            
for (int i = 1; i < 214; i++{
                Page page 
= new Page();
                logger.info(
"i=" + i);
                page.setPageIndex(i);
                page.setPageSize(
1000);
                List
<Bt285> list = bt285DAO.findPageByQuery(
                                    
"select t from Bt285 t ",null, page);
                
for (Bt285 news : list) {
                    logger.debug(
"news Id=" + news.getId());        
                    
// 添加一条文档
                    Document doc = new Document();
                    String title 
= news.getTitle();
                    String newTitle 
= null;
                    
if(title == null)
                        title 
="no title";
                    newTitle 
= title.replace("|BT285.cn|BT下载|BT电影|BT软件""");
                    doc.add(
new Field("id", String.valueOf(news.getId()), Field.Store.YES, Field.Index.NO));
                    doc.add(
new Field("title", newTitle, Field.Store.YES,
                            Field.Index.TOKENIZED));
                    doc.setBoost(news.getId() 
* 10);
                    writer.addDocument(doc);
                }

            }

            writer.optimize();
            writer.close();
        }

        
public static void main(String[] args) throws Exception {
            System.out.println(
"server begin!");
            Configure.propertiesConfigure();
            BtLucene action 
= new BtLucene();
            
//action.batchCreate();        
            String path = Configure.getCreateBtLucenePath();
            action.query(
"nba",path);
            System.out.println(URLEncoder.encode(
"天兆","UTF-8"));//%E5%A4%A9%E5%85%86
            System.out.println("server finish!");
        }

}

http://www.bt285.cn/search/%E6%B3%95%E8%AF%81%E5%85%88%E9%94%8BII 搜索法证先锋II 出来的效果.
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