首先下載lucene相關(guān)jar包，這里就不多說，自己網(wǎng)上找

在eclipse下建立web工程luceneTest

將jar包加載到你的web工程里面

新建類Index.java,代碼如下：

import java.io.IOException;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.SimpleAnalyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.LockObtainFailedException;
import org.apache.lucene.store.RAMDirectory;

/*
 * Create Date:2007-10-26 下午02:52:53
 *
 * Author:dingkm
 *
 * Version: V1.0
 *
 * Description：對(duì)進(jìn)行修改的功能進(jìn)行描述
 *
 *
 */

public class Index {

 /**
  * @Description 方法實(shí)現(xiàn)功能描述
  * @param args
  *            void
  * @throws 拋出異常說明
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  try {
   new Index().index();
   System.out.println("create index success!!!");
  } catch (CorruptIndexException e) {
   e.printStackTrace();
  } catch (LockObtainFailedException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }

 public void index() throws CorruptIndexException, LockObtainFailedException, IOException{
   long start = System.currentTimeMillis();
  
  // 建立索引的路徑
     String path = "c:\\index2";
  Document doc1 = new Document();  
        doc1.add( new Field("name", "中華人民共和國",Field.Store.YES,Field.Index.TOKENIZED));  
        doc1.add( new Field("content", "標(biāo)題或正文包括",Field.Store.YES,Field.Index.TOKENIZED)); 
        doc1.add( new Field("time", "20080715",Field.Store.YES,Field.Index.TOKENIZED));
        Document doc2 = new Document();  
        doc2.add(new Field("name", "大中國中國",Field.Store.YES,Field.Index.TOKENIZED));  
        IndexWriter writer = new IndexWriter(FSDirectory.getDirectory(path, true), new StandardAnalyzer(), true);
        writer.setMaxMergeDocs(10);
        writer.setMaxFieldLength(3);  
        writer.addDocument(doc1);  
        writer.setMaxFieldLength(3);  
        writer.addDocument(doc2);  
        writer.close();  
 
 
      
        System.out.println("=========================");
        System.out.print(System.currentTimeMillis() - start);
  System.out.println("total milliseconds");
  System.out.println("=========================");
       

 }

}

執(zhí)行這個(gè)類，可以看到結(jié)果：

=========================
375total milliseconds
=========================
create index success!!!

可以看到索引創(chuàng)建成功。


下面我們來創(chuàng)建搜索類，Search.java

import java.io.IOException;

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;

/*
 * Create Date:2007-10-26 下午02:56:12
 *
 * Author:dingkm
 *
 * Version: V1.0
 *
 * Description：對(duì)進(jìn)行修改的功能進(jìn)行描述
 *
 * 
 */

public class Search {

 /** 
  *   @Description 方法實(shí)現(xiàn)功能描述 
  *   @param args
  *   void
  *   @throws  拋出異常說明
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
   String path = "c:\\index2";
   try {
   new Search().search(path);
  } catch (CorruptIndexException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ParseException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 }
 
 
 public void search(String path) throws CorruptIndexException, IOException, ParseException{
   IndexSearcher searcher = new IndexSearcher(path);  
         Hits hits = null;  
         Query query = null;  
         QueryParser qp = new QueryParser("name",new StandardAnalyzer());  

            query = qp.parse("中");
         hits = searcher.search(query); 
            java.text.NumberFormat   format   =   java.text.NumberFormat.getNumberInstance();  
         System.out.println("查找到共" + hits.length() + "個(gè)結(jié)果");  
            for   (int   i   =   0;   i   <   hits.length();   i++)   {  
                  //開始輸出查詢結(jié)果  
                  Document   doc   =   hits.doc(i);  
                  System.out.println(doc.get("name"));  
                  System.out.println("content="+doc.get("content"));
                  System.out.println("time="+doc.get("time"));
                  System.out.println("準(zhǔn)確度為："   +   format.format(hits.score(i)   *   100.0)   +   "%");  
//                  System.out.println(doc.get("CONTENT"));  
              } 
     
 }

}

執(zhí)行它，會(huì)得到以下結(jié)果：

查找到共2個(gè)結(jié)果
中華人民共和國
content=標(biāo)題或正文包括
time=20080715
準(zhǔn)確度為：29.727%
大中國中國
content=null
time=null
準(zhǔn)確度為：29.727%

這樣就完成了我們的程序

這是我第一次發(fā)表文章
說的比較簡(jiǎn)單，可能很多地方說的不清楚
希望大家多多支持

有什么不明白的歡迎留言。