首先准备一些文件和所需要的jar包，我这用的是lucene4.0版本的

package cn.com.demo.test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.StringBufferInputStream;

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.StringField;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.queryparser.classic.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 Lucene
{
	private static Version version=Version.LUCENE_40;//lucene版本
	public static void main(String[] args)
	{
		reader();
	}
	
	public static void write(){
		IndexWriter index=null;
		try
		{
			//存储信息的硬盘路径
			//Directory directory = new RAMDirectory();创建内存directory
			Directory dire=FSDirectory.open(new File("D:\\lunece\\store"));//创建硬盘的directory
			//创建indexWrite
			IndexWriterConfig config=new IndexWriterConfig(version, new StandardAnalyzer(version));
			index=new IndexWriter(dire, config);
			
			File file=new File("D:\\lunece\\file");//需要进行检索的文件路径
			//穿件document用来存储文件信息
			Document doc=null;
			for(File fil:file.listFiles()){
				doc=new Document();
				//TextField和StringField的区别：StringField将字符串认为是一个整体，不能被切分；而TextField中的字符串可以被切分
				doc.add(new StringField("fileName", fil.getName(), Store.YES));//Store.YES进行存储
				doc.add(new StringField("filePath", fil.getPath(), Store.YES));
				doc.add(new TextField("fileContent",new FileReader(fil)));//textField内容会进行分词
				//存储到indexWrite中
				index.addDocument(doc);
			}
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}finally{
			try
			{
				index.close();
			}
			catch (IOException e)
			{
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	public static void reader(){
		DirectoryReader reader=null;
		try
		{
			//创建directory路径，方便从这个目录中拿数据查找
			Directory dire=FSDirectory.open(new File("D:\\lunece\\store"));
			reader=DirectoryReader.open(dire);
			//创建搜索indexSeacher
			IndexSearcher seacher=new IndexSearcher(reader);
			//创建搜索query
			QueryParser paeser=new QueryParser(version, "fileContent", new StandardAnalyzer(version));
			//搜索的内容
			Query query=paeser.parse("queries ");
			//返回docs
			TopDocs docs=seacher.search(query, 10);//查询10条记录
			ScoreDoc[] scores=docs.scoreDocs;
			//遍历找到document对象
			for(ScoreDoc score:scores){
				Document doc=seacher.doc(score.doc);
				//因为content拿不到，所以我通过路径用流的方式区取获取
				File f=new File(doc.get("filePath"));
				FileReader rea=new FileReader(f);
				BufferedReader buf=new BufferedReader(rea);
				String content="";
				String st="";
				while((st=buf.readLine())!=null){
					content=content+st;
				}
				System.out.println(doc.get("fileName")+"........."+doc.get("filePath")+"........."+content);
				System.out.println(doc.get("fileContent"));
			}
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}finally{
			try
			{
				reader.close();
			}
			catch (IOException e)
			{
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

helloworld.txt.........D:\lunece\file\helloworld.txt.........Although Lucene provides the ability to create your own queries through its API, it also provides a rich query language through the Query Parser...
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hellowor.txt.........D:\lunece\file\hellowor.txt.........����ɶ�ط�Although Lucene provides the ability to create your own queries through its API, it also provides a rich query language through the Query Parser...
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helloworl.txt.........D:\lunece\file\helloworl.txt.........vdfvfvdfvfd�ǵ�Although Lucene provides the ability to create y�����������ĸ��ý�Ŀ������þ����our own queries through its API, it also provides a rich query language through the Query Parser...
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