Lucene索引数据库

 

import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;

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;
import org.wltea.analyzer.lucene.IKAnalyzer;

import com.patent.common.connectionManage.ConnectionManage;
import com.patent.common.connectionManage.ResultManage;

/**
 * @desc 专利数据索引管理类
 *
 */
public class IndexManage {
    private Directory ramdDirectory = null; //内存索引目录
    private Directory fsdDirectory = null;//文件索引目录
    private IndexWriter iwriter_ram = null; //
    private IndexWriter iwriter_fsd = null; //
    private ResultSet Result = null;//
    private ConnectionManage connManage = null;
    private int currectPage = 0 ;
    /**
     * @desc 初始化lucene索引。
     */
    public IndexManage(){
    
        try {
            fsdDirectory = FSDirectory.getDirectory("E:/temp/index/");
            iwriter_fsd = new IndexWriter(fsdDirectory,new IKAnalyzer(),true,IndexWriter.MaxFieldLength.LIMITED);
            connManage = new ConnectionManage();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    /**
     * 获取结果集
     * @return
     */
    public void getResult(int currectPage){
        ramdDirectory = new RAMDirectory();
        try {
            iwriter_ram = new IndexWriter(ramdDirectory,new IKAnalyzer(),true,IndexWriter.MaxFieldLength.LIMITED);
            
            ResultManage rsManage = new ResultManage(connManage.getConnection(),currectPage);
            Result = rsManage.getResultSet();    
            int k = 0;
            while(Result.next()){
                //System.out.println(currectPage+" "+k++);
                //添加document
                Document doc = new Document();
                doc.add(new Field("PatentNo",Result.getString("PatentNo"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("PublicationDate",Result.getString("PublicationDate"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("Title",Result.getString("Title"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("Inventors",Result.getString("Inventors"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("ANA",Result.getString("ANA"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("SerialNo",Result.getString("SerialNo")+Result.getString("SeriesCode"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("Filed",Result.getString("Filed"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("USCurrentClass",Result.getString("USCurrentClass"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("InternlClass",Result.getString("InternlClass"),Field.Store.YES,Field.Index.ANALYZED));
                doc.add(new Field("Abstract",Result.getString("Abstract"),Field.Store.YES,Field.Index.ANALYZED));
                
                iwriter_ram.addDocument(doc);
                
            }
            
            iwriter_ram.commit();
            iwriter_fsd.addIndexes(new Directory[]{ramdDirectory});
            
        } catch (CorruptIndexException e) {
            e.printStackTrace();
        } catch (LockObtainFailedException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        
    }
    
    /**
     * 关闭indexWriter
     */
    public void close(){
        if(iwriter_fsd != null){
            try {
                iwriter_fsd.commit();
                iwriter_fsd.close();
            } catch (CorruptIndexException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            
        }
    }
    
}