Lucene_Hello(示例)

 1 package cn.hk.lucene; 2 ?3 import java.io.File; 4 import java.io.FileReader; 5 import java.io.IOException; 6 import org.apache.lucene.analysis.standard.StandardAnalyzer; 7 import org.apache.lucene.document.Document; 8 import org.apache.lucene.document.Field; 9 import org.apache.lucene.index.CorruptIndexException;10 import org.apache.lucene.index.IndexWriter;11 import org.apache.lucene.index.IndexWriterConfig;12 import org.apache.lucene.store.Directory;13 import org.apache.lucene.store.FSDirectory;14 import org.apache.lucene.util.Version;15 16 /**17 ?* 生成索引18 ?*19 ?*/20 public class TestIndex {21 ????public static void main(String[] args) {22 ????????IndexWriter writer = null;23 ????????24 ????????try {25 ????????????//1、创建Directory26 ????????????//在内存中创建27 ????????????//Directory directory = new RAMDirectory();28 ????????????//在磁盘中创建29 ????????????Directory directory = FSDirectory.open(new File("e:\\lucene")); ???????????30 ????????????31 ????????????//2、创建IndexWriter32 ????????????IndexWriterConfig config = new IndexWriterConfig(33 ????????????????????Version.LUCENE_35,34 ????????????????????new StandardAnalyzer(Version.LUCENE_35));35 ????????????36 ????????????writer = new IndexWriter(directory,config);37 ????????????38 ????????????//3、创建Document39 ????????????Document doc = null;40 ????????????41 ????????????//获取files下的所有文件42 ????????????File list = new File("e:\\lucene\\files");43 ????????????44 ????????????//4、添加Field属性45 ????????????//遍历获取到的文件的集合46 ????????????for(File file : list.listFiles()){47 ????????????????//实例化文档对象48 ????????????????doc = new Document();49 ????????????????//存储文件的名称信息(对名称进行存储但不分析)50 ????????????????doc.add(new Field("filename",file.getName(),Field.Store.YES, Field.Index.NOT_ANALYZED));51 ????????????????doc.add(new Field("path",file.getAbsolutePath(),Field.Store.YES,Field.Index.NOT_ANALYZED));52 ????????????????53 ????????????????doc.add(new Field("content",new FileReader(file)));54 ????????????????55 ????????????????//将document添加到writer中56 ????????????????writer.addDocument(doc);57 ????????????}58 ????????????59 ????????} catch (IOException e) {60 ????????????e.printStackTrace();61 ????????}62 ????????finally{63 ????????????if(writer != null){64 ????????????????try {65 ????????????????????writer.close();66 ????????????????} catch (CorruptIndexException e) {67 ????????????????????// TODO Auto-generated catch block68 ????????????????????e.printStackTrace();69 ????????????????} catch (IOException e) {70 ????????????????????// TODO Auto-generated catch block71 ????????????????????e.printStackTrace();72 ????????????????}73 ????????????}74 ????????}75 ????}76 }

 1 package cn.hk.lucene; 2 ?3 import java.io.File; 4 import java.io.IOException; 5 import org.apache.lucene.analysis.standard.StandardAnalyzer; 6 import org.apache.lucene.document.Document; 7 import org.apache.lucene.index.IndexReader; 8 import org.apache.lucene.queryParser.ParseException; 9 import org.apache.lucene.queryParser.QueryParser;10 import org.apache.lucene.search.IndexSearcher;11 import org.apache.lucene.search.Query;12 import org.apache.lucene.search.ScoreDoc;13 import org.apache.lucene.search.TopDocs;14 import org.apache.lucene.store.Directory;15 import org.apache.lucene.store.FSDirectory;16 import org.apache.lucene.util.Version;17 18 /**19 ?* 检索20 ?*21 ?*/22 public class TestSearch {23 ????public static void main(String[] args) {24 ????????IndexReader reader =null;25 ????????try {26 ????????????//1、创建Dierctory27 ????????????Directory directory = FSDirectory.open(new File("e:\\lucene"));28 29 ????????????//2、创建IndexReader30 ????????????reader = IndexReader.open(directory);31 ????????????32 ????????????//3、创建Searcher33 ????????????IndexSearcher searcher = new IndexSearcher(reader);34 ????????????35 ????????????//4、创建Query36 ????????????//参数：匹配器的版本、查询的属性、分析器37 ????????????QueryParser parser = new QueryParser(Version.LUCENE_35,38 ????????????????????"content",39 ????????????????????new StandardAnalyzer(Version.LUCENE_35));40 ????????????41 ????????????//查询的条件(相当于数据库中的where部分)42 ????????????Query query = parser.parse("users");43 ????????????44 ????????????//5、创建TopDocs45 ????????????//使用查询器进行查询(条件，查询次数)46 ????????????TopDocs docs = searcher.search(query, 20);47 ????????????48 ????????????//6、根据TopDocs获取ScoreDoc49 ????????????ScoreDoc[] sds = ?docs.scoreDocs;50 ????????????51 ????????????//7、根据searcher和ScoreDoc获取具体的document(分词所出现的文档)对象52 ????????????for(ScoreDoc sd : sds){53 ????????????????//表示分词所在的文档对象54 ????????????????Document doc = searcher.doc(sd.doc);55 ????????????????56 ????????????????//输出文档的信息57 ????????????????System.out.println(doc.get("filename") + " | " + doc.get("path"));58 ????????????}59 ????????????60 ????????} catch (IOException | ParseException e) {61 ????????????// TODO Auto-generated catch block62 ????????????e.printStackTrace();63 ????????} ???????????64 ????????finally{65 ????????????if(reader != null){66 ????????????????try {67 ????????????????????reader.close();68 ????????????????} catch (IOException e) {69 ????????????????????// TODO Auto-generated catch block70 ????????????????????e.printStackTrace();71 ????????????????}72 ????????????}73 ????????}74 ????????75 ????}76 }