Lucene初使用

其中用到的几个jar包

相关代码如下：

package com.eplant;

import java.io.IOException;  
import org.apache.lucene.analysis.SimpleAnalyzer;  
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.IndexSearcher;  
import org.apache.lucene.search.Query;  
import org.apache.lucene.search.TermQuery;  
import org.apache.lucene.search.TopDocs;  
import org.apache.lucene.store.RAMDirectory;  
  
/*
 * @author Knight_Key

 */  

public class ReadWrite {  
    public static void main(String[] args) throws IOException {  
        long startTime = System.currentTimeMillis();  
        // 创建一个内存目录对象
        RAMDirectory directory = new RAMDirectory();  
        ///创建索引写入对象  
IndexWriter writer = new IndexWriter(directory, new SimpleAnalyzer(),true, IndexWriter.MaxFieldLength.UNLIMITED);  
        // 创建Document 文档对象
        Document doc = new Document();  
        doc.add(new Field("name", "wangxiaowu", Field.Store.YES,Field.Index.ANALYZED));  
        writer.addDocument(doc);  
        writer.close(); // 这里关闭 
        IndexSearcher searcher = new IndexSearcher(directory);  
        // 搜索关键字
         Query query = new TermQuery(new Term("name", "lucene"));   
        // 去索引目录中查询
        TopDocs rs = searcher.search(query, null, 10);  
        for (int i = 0; i < rs.scoreDocs.length; i++) {  
            Document firstHit = searcher.doc(rs.scoreDocs[i].doc);  
            System.out.println("name:" + firstHit.getField("name").stringValue());  
        }  
        writer.close();  
        directory.close();  
    }  
}