学步园

基于词库的算法分词，是较好的中文分词器

package busetoken;
import java.io.IOException;

import jeasy.analysis.MMAnalyzer;

public class UseJe {

 /**
  * @param args
  * @throws IOException
  */
 public static void main(String[] args) throws IOException {
  // TODO Auto-generated method stub
  String s="编码规范从根本上解决了程序维护员的难题；规范的编码阅读和理解起来更容易，也可以快速的不费力气的借鉴别人的编码。对将来维护你编码的人来说，你的编码越优化，他们就越喜欢你的编码，理解起来也就越快。";
  MMAnalyzer mm=new MMAnalyzer();
  System.out.print(mm.segment(s, "|"));
   

 }

}

效果如下

编码|规范|从根本上|解决|程序|维护|员|难题|规范|编码|阅读|理解|起来|更|容易|也可以|快速|不费力气|借鉴|别人|编码|将来|维护|你|编码|的人|来说|你的|编码|越|优化|他们|就越|喜欢|你的|编码|理解|起来|也就|越快|

建立索引

package bindex;
import java.io.File;
import tool.FileText;
import tool.FileList;
import java.io.*;

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 jeasy.analysis.MMAnalyzer;
import org.apache.lucene.store.LockObtainFailedException;
public class FileIndexer {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
        String indexPath ="indexes";
        try {      
  IndexWriter indexWriter = new IndexWriter(indexPath,new MMAnalyzer());
        String[] files=FileList.getFiles("htmls");
        int num=files.length;
        for(int i=0;i<num;i++){
            Document doc=new Document();  
            File f=new File(files[i]);
           
            String name=f.getName();
            String content=FileText.getText(f);
            String path=f.getPath();
            Field field=new Field("name",name,Field.Store.YES,Field.Index.TOKENIZED);
            doc.add(field);
            field=new Field("content",content,Field.Store.YES,Field.Index.TOKENIZED);
            doc.add(field);
            field=new Field("path",path,Field.Store.YES,Field.Index.NO);
            doc.add(field);
            indexWriter.addDocument(doc); 
            System.out.println("File:"+path+name+" indexed!");
        }
     System.out.println("OK!");
     indexWriter.close();
 } 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();
 }
 }

}

搜索

package bindex;
import java.io.IOException;
import java.lang.StringBuffer;

import org.apache.lucene.index.*;
import org.apache.lucene.search.*;
import org.apache.lucene.document.*;

public class BindexSearcher {
 
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
     String indexPath="indexes";
     String searchField="content";
     String searchPhrase="安全";
     StringBuffer sb=new StringBuffer("");
    
     try {
   IndexSearcher searcher=new IndexSearcher(indexPath);
   Term t=new Term(searchField,searchPhrase);
   Query q=new TermQuery(t);
   Hits hs=searcher.search(q);
   int num=hs.length();
   for (int i=0;i<num;i++){
    Document doc=hs.doc(i);
    Field fname=doc.getField("name");
    Field fcontent=doc.getField("content");   
    sb.append("name: ");
    sb.append(fname.stringValue()+" ");
    sb.append("content: ");
    sb.append(fcontent.stringValue().substring(0, 100)+" ");
    sb.append("------------"+" ");   
   }
   searcher.close();
   System.out.println(sb);  
  } catch (CorruptIndexException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }

}
本篇文章来源于：网贝建站 http://www.netbei.com   原文链接：http://www.netbei.com/2009/1223/18997.html