每日一练1.1（Lucene）

package org.itat.text1;
import java.io.IOException;

public class IndexText {

 /**
  * @param args
  */
package org.itat.text1;
import java.io.File;
import java.io.IOException;

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.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.LockObtainFailedException;
import org.apache.lucene.util.Version;


class IndexUtil_11 {
	
	private   String [] ids={"1","2","3","4"};
	private   String [] emails={"lele@qq.com","1534432371@qq.com","hello@sine.com","Tom@163.com"};
	private  String [] contents={"Hello world!","lele is so cool！","hello@sine.com","Tom@163.com"};
	private   String [] names={"lele!","Tom","zhangsan ","zhaosi"};
	private  int  [] attachs={1,2,3,5};
	private  Directory directory=null;
	
	public  void  index()
	{
		//创建Derectory
		try {
			directory=FSDirectory.open(new File ("G:/Lucene/indext2"));
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		// 创建Writer
		IndexWriter writer=null;
		try {
			writer=new IndexWriter (directory, new IndexWriterConfig(Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
		Document doc=null;
		for (int i=0;i<ids.length;i++)
		{
			//创建Decoment并添加Field
			doc=new Document();
			doc.add(new Field("id",ids[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS));
			doc.add(new Field("name",names[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS));
			doc.add(new Field("emails",emails[i],Field.Store.YES,Field.Index.NOT_ANALYZED));
			doc.add(new Field("content",contents[i],Field.Store.NO,Field.Index.ANALYZED));
			//将文档写到索引中
			writer.addDocument(doc);
		}
		
		
		} catch (CorruptIndexException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (LockObtainFailedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		finally
		{
			if (writer!=null)
			{
				try {
					writer.close();
				} catch (CorruptIndexException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
					//throw new Exception ();
				}
			}
				
		}
		
		
	}
	public void query() throws IOException
	{
		
		try {
			//通过IndexReader进行查询 
			IndexReader reader=IndexReader.open(directory);
			//通过reader可以有效的获取文档的数量
			System.out.println(reader.maxDoc());
			System.out.println(reader.numDocs());
			
		} catch (CorruptIndexException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
}


public static void main(String[] args) { // TODO Auto-generated method stub IndexUtil_11 indextUtil=new IndexUtil_11(); indextUtil.index(); //indextUtil.IndexUtil(); try { indextUtil.query(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace();
 } }}