A problem with Lucene In a J2EE project

Question

Hi everyone:
I am newer for Lucene which is used to build a search eigneer in my J2EE project.
But I can hardly understand how it works because of my poor English.
So I need you help:
* TxtFileIndexer.java
* Created on 2006�N12��8��, ����3:46
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package classes.php.lucene;
* @author eingmarra
import java.io.File;
import java.io.FileReader;
import java.io.Reader;
import java.util.Date;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.FSDirectory;
public class TxtFileIndexer {
     public String test() {
          return "test is ok hohoho";
      * @param args
     public String createIndex(String indexDir_path,String dataDir_path) throws Exception {
          String result = "";
          File indexDir = new File(indexDir_path);
          File dataDir = new File(dataDir_path);
          Analyzer luceneAnalyzer = new StandardAnalyzer();
          File[] dataFiles = dataDir.listFiles();
          IndexWriter indexWriter = new IndexWriter(indexDir,luceneAnalyzer,true);
          long startTime = new Date().getTime();
          for(int i=0; i < dataFiles.length; i++) {
               if(dataFiles.isFile() && dataFiles[i].getName().endsWith(".html")) {
                    result += "Indexing file" + dataFiles[i].getCanonicalPath()+"<br />";
                    Document document = new Document();
                    Reader txtReader = new FileReader(dataFiles[i]);
                    document.add(Field.Text("path",dataFiles[i].getCanonicalPath())); //can not pass the Netbeans IDE, maybe the Field class is not support the signature of the fuction Text anymore!!
                    document.add(Field.Text("contents",txtReader)); //can not pass the Netbeans IDE, maybe the Field class is not support the signature of the fuction Text anymore!!
                    indexWriter.addDocument(document);
          indexWriter.optimize();
          indexWriter.close();
          long endTime = new Date().getTime();
          result += "It takes"+(endTime-startTime)
                    + " milliseconds to create index for the files in directory "
                    + dataDir.getPath();
          return result;
     public String searchword(String ss,String index_path) throws Exception {
     String queryStr = ss;
     String result = "Result:<br />";
     //This is the directory that hosts the Lucene index
File indexDir = new File(index_path);
FSDirectory directory = FSDirectory.getDirectory(indexDir,false);
IndexSearcher searcher = new IndexSearcher(directory);
if(!indexDir.exists()){
     result = "The Lucene index is not exist";
     return result;
Term term = new Term("contents",queryStr.toLowerCase());
TermQuery luceneQuery = new TermQuery(term);
Hits hits = searcher.search(luceneQuery);
for(int i = 0; i < hits.length(); i++){
     Document document = hits.doc(i);
     result += "<br /><a href='getfile.php?w="+ss+"&f="+document.get("path")+"'>File: " + document.get("path")+"</a>\n";
return result;
the code above is from google and it works perfectly in the Lucene1.4. But it not pass the compiler by Netbeans IDE because I use Lucene2.0
If you have some idea,plz replace these two lines' code with the correct ones.
Thanks a lot !!

Answer 1

Hi everyone:
I am newer for Lucene which is used to build a search eigneer in my J2EE project.
But I can hardly understand how it works because of my poor English.
So I need you help:
* TxtFileIndexer.java
* Created on 2006�N12��8��, ����3:46
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package classes.php.lucene;
* @author eingmarra
import java.io.File;
import java.io.FileReader;
import java.io.Reader;
import java.util.Date;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.FSDirectory;
public class TxtFileIndexer {
     public String test() {
          return "test is ok hohoho";
      * @param args
     public String createIndex(String indexDir_path,String dataDir_path) throws Exception {
          String result = "";
          File indexDir = new File(indexDir_path);
          File dataDir = new File(dataDir_path);
          Analyzer luceneAnalyzer = new StandardAnalyzer();
          File[] dataFiles = dataDir.listFiles();
          IndexWriter indexWriter = new IndexWriter(indexDir,luceneAnalyzer,true);
          long startTime = new Date().getTime();
          for(int i=0; i < dataFiles.length; i++) {
               if(dataFiles.isFile() && dataFiles[i].getName().endsWith(".html")) {
                    result += "Indexing file" + dataFiles[i].getCanonicalPath()+"<br />";
                    Document document = new Document();
                    Reader txtReader = new FileReader(dataFiles[i]);
                    document.add(Field.Text("path",dataFiles[i].getCanonicalPath())); //can not pass the Netbeans IDE, maybe the Field class is not support the signature of the fuction Text anymore!!
                    document.add(Field.Text("contents",txtReader)); //can not pass the Netbeans IDE, maybe the Field class is not support the signature of the fuction Text anymore!!
                    indexWriter.addDocument(document);
          indexWriter.optimize();
          indexWriter.close();
          long endTime = new Date().getTime();
          result += "It takes"+(endTime-startTime)
                    + " milliseconds to create index for the files in directory "
                    + dataDir.getPath();
          return result;
     public String searchword(String ss,String index_path) throws Exception {
     String queryStr = ss;
     String result = "Result:<br />";
     //This is the directory that hosts the Lucene index
File indexDir = new File(index_path);
FSDirectory directory = FSDirectory.getDirectory(indexDir,false);
IndexSearcher searcher = new IndexSearcher(directory);
if(!indexDir.exists()){
     result = "The Lucene index is not exist";
     return result;
Term term = new Term("contents",queryStr.toLowerCase());
TermQuery luceneQuery = new TermQuery(term);
Hits hits = searcher.search(luceneQuery);
for(int i = 0; i < hits.length(); i++){
     Document document = hits.doc(i);
     result += "<br /><a href='getfile.php?w="+ss+"&f="+document.get("path")+"'>File: " + document.get("path")+"</a>\n";
return result;
the code above is from google and it works perfectly in the Lucene1.4. But it not pass the compiler by Netbeans IDE because I use Lucene2.0
If you have some idea,plz replace these two lines' code with the correct ones.
Thanks a lot !!