IK分词器的使用lucene

//if(hasNew)//{//writer.deleteAll();//}//纠结一个问题，为啥这行不注释就不能正常运行呢package Java.se.lucene;import java.io.File;import java.io.IOException;import org.apache.lucene.analysis.Analyzer;import org.apache.lucene.document.Document;import org.apache.lucene.document.Field;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.search.IndexSearcher;import org.apache.lucene.search.Query;import org.apache.lucene.search.ScoreDoc;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.store.RAMDirectory;import org.apache.lucene.util.Version;import org.wltea.analyzer.lucene.IKAnalyzer;import org.wltea.analyzer.lucene.IKQueryParser;import org.wltea.analyzer.lucene.IKSimilarity;public class Searcher { //创建IK分词器 Analyzer analyzer =new IKAnalyzer();     private static Directory directory=null; private static String text = "IK Analyzer是一个结合词典分词和文法分词的中文分词开源工具包。" + "它使用了全新的正向迭代最细粒度切分算法。";  private static IndexReader reader=null;  public Searcher() { try {directory= FSDirectory.open(new File("f:/lucene/Index06/"));} catch (IOException e) {e.printStackTrace();}// directory= new RAMDirectory(); } public void index(boolean hasNew){IndexWriter writer=null;try {  writer=new IndexWriter(directory,new IndexWriterConfig(Version  .LUCENE_36,analyzer));//if(hasNew)//{//writer.deleteAll();//}Document doc=null;doc=new Document();doc.add(new Field("content", text, Field.Store.YES,Field.Index.ANALYZED) );writer.addDocument(doc);} 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) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}}  public void search(String query)    {       try {       reader=IndexReader.open(directory);   IndexSearcher searcher=new IndexSearcher(reader);   //在索引中使用IkSimilarity似度评估器   searcher.setSimilarity(new IKSimilarity());   //使用IKQueryParse查询分析器创建Query对象,搜索域为content   Query q=IKQueryParser.parse("content",query);   //搜索相关度最高的五条记录               TopDocs tds=searcher.search(q,10);   ScoreDoc[] sd=tds.scoreDocs;   System.out.println(tds.totalHits);   for(int i=0;i<tds.totalHits;i++){   System.out.println("sduyfusfuah");   Document document=searcher.doc(sd[i].doc);   System.out.println(document.toString());    }   searcher.close();} catch (IOException e) {e.printStackTrace();}  }public void check() throws IOException{                       //检查索引是否被正确建立(打印索引)     //Directory directory = FSDirectory.open(new File("f:/lucene/Index06/"));//创建directory,其储存方式为在     IndexReader reader = IndexReader.open(directory);     System.out.println(reader.numDocs());     for(int i = 0;i<reader.numDocs();i++){         System.out.println(reader.document(i));     }     reader.close();      } public static void main(String[] args) throws IOException {new Searcher().check();}}package Java.se.lucene;import org.junit.Before;import org.junit.Test;public class Test_Analyzer{private static Searcher ps=null;@Beforepublic void init(){     ps=new Searcher();}@Testpublic void test_index(){ps.index(true);}@Testpublic void test_search01(){ps.search("中文");System.out.println("---------------------------");}}