自己写的lucene实例 java搜索引擎

import java.io.File; import java.io.IOException; import java.util.Date; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.index.IndexReader; import org.apache.lucene.index.Term; import org.apache.lucene.index.TermDocs; import org.apache.lucene.queryParser.ParseException; 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.TermQuery; import org.apache.lucene.search.TopDocs; import org.apache.lucene.search.TopDocsCollector; import org.apache.lucene.store.Directory; import org.apache.lucene.store.FSDirectory; import org.apache.lucene.util.Version; public class Search { private String INDEX_STORE_PATH="E:\\index"; public void indexSearch(String searchType,String searchKey) throws IOException{ System.out.println("使用索引方式索引"); Directory directory = FSDirectory.open(new File("E://index")); IndexReader reader=IndexReader.open(directory); IndexSearcher searcher=new IndexSearcher(reader); QueryParser parser = new QueryParser(Version.LUCENE_36,"content",new StandardAnalyzer(Version.LUCENE_36)); //创建Query表示搜索域为content中包含Thread的文档 try { Query query = parser.parse(searchKey); // Hits hits = indexSearcher.search(query); // System.out.println( "找到了 " + hits.length() + "结果 " ); // for ( int i = 0 ;i // { // Document doc = hits.doc(i); // System.out.println(doc.get( " name " )); // } // TopDocsCollector collector = new TopDocsCollector(); // 启用这个 TopDocs tds = searcher.search(query, 10);//搜索的条数 System.out.println(tds.totalHits + " total results"); System.out.println("-----匹配结果如下------"); ScoreDoc[] scoredocs = tds.scoreDocs; for(int i = 0; i < scoredocs.length; i++){ ScoreDoc scoreDoc = scoredocs[i]; Document d = searcher.doc(scoreDoc.doc); int se=scoredocs[i].doc; System.out.println(i + "--得分:" +scoreDoc.score +" 文件路径:"); Document doc = searcher.doc(se); // 通过编号，拿到文档 String paty=doc.get("path"); System.out.println(paty); } //6.根据TopDocs获取ScoreDoc对象 ScoreDoc[] sds = tds.scoreDocs; for(ScoreDoc sd:sds){ //7.根据Searcher和ScoreDoc对象获取Document对象 Document doc = searcher.doc(sd.doc); //8.根据Document对象获取需要的值 System.out.println(doc.get("filename")+"["+doc.get("path")+"]"); // ScoreDoc scoreDoc = scoredocs[0]; // // Document d = searcher.doc(scoreDoc.doc); // String path = d.get("uri"); // System.out.println(0 + "--得分:" +scoreDoc.score +" 文件路径:"+doc.get("path")); } } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } Term t=new Term(searchType,searchKey);//建立搜索单元 Query q=new TermQuery(t);//由term生成query System.out.println("----------TermQuery: "+q.toString()); Date begintime=new Date(); TermDocs termdocs=searcher.getIndexReader().termDocs(t);//获取一个美剧对象<key,value> while(termdocs.next()){ System.out.println(termdocs.freq()+" "+searcher.getIndexReader().document(termdocs.doc()).getField("filename").stringValue()); } Date endtime=new Date(); long timeofsearch=begintime.getTime()-endtime.getTime(); System.out.println("耗时"+timeofsearch); } }