//主程序package org.se.lucene;import java.io.File;import java.io.IOException;//import java.sql.Date;import java.text.SimpleDateFormat;import java.util.Date;import java.util.HashMap;import java.util.Map;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.document.Document;import org.apache.lucene.document.Field;import org.apache.lucene.document.NumericField;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.search.IndexSearcher;import org.apache.lucene.search.ScoreDoc;import org.apache.lucene.search.TermQuery;import org.apache.lucene.search.TopDocs;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 lucene_index {private String[] ids={"1","2","3","4","5","6"};private String[] emails={"welcometotyu","hellowboy","higirl","howareyou","googluck","badgosh"};private String[] contents={"I like 1","I like 2","I like 3","I like 4" +"I like 5"};private int[] attachs={1,2,3,4,5,6};private String[] names={"liwu","zhangsan","xiaoqinag","laona","dabao","lisi"};private Date[] dates=null;private Directory directory=null;private Map<String,Float> scores=new HashMap<String, Float>();public void index(){ IndexWriter writer=null; Document doc=null; try {writer =new IndexWriter(directory,new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36)));//writer.deleteAll();for(int i=0;i<ids.length;i++){doc=new Document(); doc.add(new Field("id",ids[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS)); doc.add(new Field("email",emails[i],Field.Store.YES,Field.Index.NOT_ANALYZED)); doc.add(new Field("contents",contents[i],Field.Store.YES,Field.Index.ANALYZED)); doc.add(new Field("name",names[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS)); //存储数字 doc.add(new NumericField("attachs",Field.Store.YES,true).setIntValue(attachs[i])); //存储日期 doc.add(new NumericField("date",Field.Store.YES,true).setLongValue(dates[i].getTime())); String et=emails[i].substring(emails[i].lastIndexOf("@")+1); System.out.println(et); if(scores.containsKey(et)) { doc.setBoost(scores.get(et)); } else { doc.setBoost(0.5f);} writer.addDocument(doc); }} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (LockObtainFailedException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally{ if(writer!=null) { try {writer.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} } }} public void setDate() { SimpleDateFormat sdf=new SimpleDateFormat("yyyy-mm-kk"); try { dates=new Date[ids.length]; dates[0]=sdf.parse("2010-08-17"); dates[1]=sdf.parse("2011-02-17"); dates[2]=sdf.parse("2012-03-17"); dates[3]=sdf.parse("2011-04-17"); dates[4]=sdf.parse("2012-05-17"); dates[5]=sdf.parse("2011-07-17");} catch (Exception e) {e.printStackTrace();// TODO: handle exception} } public lucene_index(){setDate();try {directory=FSDirectory.open(new File("f:/lucene/index02"));} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public void quary(){try {IndexReader reader=IndexReader.open(directory);System.out.println("numdocs"+reader.numDocs());System.out.println("maxDocs"+reader.maxDoc());System.out.println("detelemaxDocs"+reader.numDeletedDocs());reader.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch block e.printStackTrace();}}@SuppressWarnings("deprecation")public void undelete(){try {//回复时必须把reader的只读设为falseIndexReader reader=IndexReader.open(directory,false);reader.undeleteAll();reader.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}//清空回收站，强制优化public void forceDelete(){IndexWriter writer=null;try {writer=new IndexWriter(directory, new IndexWriterConfig(Version.LUCENE_36,new StandardAnalyzer(Version.LUCENE_36)));//参数十一个选项，可以是一个query，也可以是一个term term就是一个精确查找的值//此时删除的文档并未完全删除，而是存储在回收站中，可以恢复的writer.forceMergeDeletes();} catch (CorruptIndexException e) {e.printStackTrace();} catch (LockObtainFailedException e) {e.printStackTrace();} catch (IOException e) { e.printStackTrace();}finally{if (writer!=null) {try {writer.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}public void merge(){IndexWriter writer=null;try {writer=new IndexWriter(directory, new IndexWriterConfig(Version.LUCENE_36,new StandardAnalyzer(Version.LUCENE_36)));writer.forceMerge(2);} catch (CorruptIndexException e) {e.printStackTrace();} catch (LockObtainFailedException e) {e.printStackTrace();} catch (IOException e) { e.printStackTrace();}finally{if (writer!=null) {try {writer.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}public void delete(){IndexWriter writer=null;try {writer=new IndexWriter(directory, new IndexWriterConfig(Version.LUCENE_36,new StandardAnalyzer(Version.LUCENE_36)));//参数十一个选项，可以是一个query，也可以是一个term term就是一个精确查找的值//此时删除的文档并未完全删除，而是存储在回收站中，可以恢复的writer.deleteDocuments(new Term("id","1"));} catch (CorruptIndexException e) {e.printStackTrace();} catch (LockObtainFailedException e) {e.printStackTrace();} catch (IOException e) { e.printStackTrace();}finally{if (writer!=null) {try {writer.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}} //更新索引 public void update(){/*lucene本身不支持更新 * * 通过删除索引然后再建立索引来更新 * */ IndexWriter writer=null; Document doc=null; try {writer =new IndexWriter(directory,new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36)));writer.deleteAll();for(int i=0;i<ids.length;i++){doc=new Document(); doc.add(new Field("id",ids[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS)); doc.add(new Field("emails",emails[i],Field.Store.YES,Field.Index.NOT_ANALYZED)); doc.add(new Field("contents",contents[i],Field.Store.YES,Field.Index.ANALYZED)); doc.add(new Field("name",names[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS)); writer.updateDocument(new Term("id","1"), doc); }} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (LockObtainFailedException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally{ if(writer!=null) { try {writer.close();} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} } }} public void serch() { try {IndexReader reader=IndexReader.open(directory);IndexSearcher searcher=new IndexSearcher(reader);TermQuery query=new TermQuery(new Term("contents","like"));TopDocs tds=searcher.search(query, 10);for(ScoreDoc sd:tds.scoreDocs){Document doc=searcher.doc(sd.doc);System.out.println("("+sd.doc+"-"+doc.getBoost()+"-"+sd.score+")"+doc.get("name")+"["+doc.get("email")+"]-->"+doc.get("id")+","+doc.get("attachs")+","+doc.get("date"));}} catch (CorruptIndexException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blockete.printStackTrace();} }}//测试类package org.se.lucene;import org.junit.Test;public class test {@Testpublic void testIndex(){lucene_index l_index=new lucene_index();l_index.index(); }@Testpublic void testquary(){lucene_index l_index=new lucene_index();l_index.quary();}@Testpublic void testDelete(){lucene_index l_index=new lucene_index();l_index.delete();}@Testpublic void testunDelete(){lucene_index l_index=new lucene_index();l_index.undelete();}@Testpublic void testForceDelete(){lucene_index l_index=new lucene_index();l_index.forceDelete();}@Testpublic void testmerge(){lucene_index l_index=new lucene_index();l_index.merge();}@Testpublic void upDate(){lucene_index l_index=new lucene_index();l_index.update();}@Testpublic void testSercher(){lucene_index l_index=new lucene_index();l_index.serch();}}
