基于 lucene3.1 开发demo.

package com.search.crawler;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
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.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.TopDocs;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;

public class IndexProcess {

	private static String indexPath = "src/indexFiles"; //生成索引存放目录

	public static void createIndex(String docsPath) {

		File docDir = new File(docsPath);
		if (!docDir.exists() || !docDir.canRead()) {
			System.out	.println("Document directory '"
							+ docDir.getAbsolutePath()
							+ "' does not exist or is not readable, please check the path");
			System.exit(1);
		}

		System.out.println("Indexing to directory '" + indexPath + "'...");
		Directory dir = null;
		try {
			dir = FSDirectory.open(new File(indexPath));

			Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_31);
			IndexWriter writer = new IndexWriter(dir, analyzer, true, new IndexWriter.MaxFieldLength(25000));
			
			indexDocs(writer, docDir);
			writer.close();
			dir.close();

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

	static void indexDocs(IndexWriter writer, File file) throws IOException {
		// do not try to index files that cannot be read
		if (file.canRead()) {
			if (file.isDirectory()) {
				File[] files = file.listFiles();
				if (files != null) {
					for (int i = 0; i < files.length; i++) {
						indexDocs(writer, files[i]);
					}
				}
			} else {

				FileInputStream fis = null;
				try {
					fis = new FileInputStream(file);
				} catch (FileNotFoundException fnfe) {
					fnfe.printStackTrace();
				}
				try {
					// make a new, empty document
					Document doc = new Document();
					
					//create index of path
					doc.add( new Field("path", file.getPath(),	Field.Store.YES, Field.Index.ANALYZED));
					
					//create index of content
					doc.add(new Field("content", new FileReader(file))); 
					
					writer.addDocument(doc);
					
				} finally {
					fis.close();
				}
			}
		}
	}

	static void search(String key ,String value) {
		
		Date startTime = new Date(); //
		Directory dir = null;
		try {
			dir = FSDirectory.open(new File(indexPath));
			IndexSearcher searcher = new IndexSearcher(dir,true);
			QueryParser par = new QueryParser(Version.LUCENE_31,key,new StandardAnalyzer(Version.LUCENE_31));
			Query query = null;
			try {
				query = par.parse(value);
			} catch (ParseException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
//			System.out.println(query.toString());
			TopDocs topDocs = searcher.search(query, null, 1000);
			ScoreDoc[] scores = topDocs.scoreDocs;
			for (ScoreDoc soc : scores) {
				System.out.println(soc+"\t"+searcher.doc(soc.doc).get("path") );
			}

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		Date endTime = new Date();
		System.out.println("总共花了" + (endTime.getTime() - startTime.getTime())+ "毫秒时间");

	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
 		IndexProcess.createIndex("src/index");
		System.out.println("search starting ：");
		IndexProcess.search("content","revision");
	}

}