Lucene高亮Highlighter-demo源码 - 飞扬部落编程仓库-专注编程,网站,专业技术

关键字: highlighter

java 代码

package com.feedsky.lucene;
import java.io.StringReader;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.highlight.Highlighter;
import org.apache.lucene.search.highlight.QueryScorer;
import org.apache.lucene.search.highlight.SimpleFragmenter;
import org.apache.lucene.search.highlight.SimpleHTMLFormatter;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
public class HighLighterTest
{
public static void main(String[] args)
{
String fieldName = "text";
String text = "《越狱3》播出时间再次延期急煞中国“狱友” 巨型变形金刚惊现北京《龙珠Z》绝招威力排行《不能说的秘密》清纯版迅雷宽频合作发行《越狱动画版》"; //检索内容
//采用猎兔分词
Analyzer analyzer = new CnAnalyzer();
Directory directory = new RAMDirectory();
try
{
//索引
IndexWriter iwriter = new IndexWriter(directory, analyzer, true);
iwriter.setMaxFieldLength(25000);
Document doc = new Document();
doc.add(new Field(fieldName, text, Field.Store.YES,
Field.Index.TOKENIZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
iwriter.addDocument(doc);
iwriter.close();
IndexSearcher isearcher = new IndexSearcher(directory);
QueryParser queryParse = new QueryParser(fieldName, analyzer);
Query query = queryParse.parse("越狱");
Hits hits = isearcher.search(query);
for (int i = 0; i < hits.length(); i++) {
Document docTemp = hits.doc(i);
String value = docTemp.get(fieldName);
// 对要高亮显示的字段格式化，这里只是加红色显示和加粗
SimpleHTMLFormatter sHtmlF = new SimpleHTMLFormatter("", "");
Highlighter highlighter = new Highlighter(sHtmlF,new QueryScorer(query));
highlighter.setTextFragmenter(new SimpleFragmenter(10));
if (value != null) {
TokenStream tokenStream = analyzer.tokenStream(fieldName,new StringReader(value));
String str = highlighter.getBestFragment(tokenStream, value);
System.out.println(str);
}
}
isearcher.close();
directory.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

运行结果为:

《越狱3》播出时间

Tags: Lucene demo 搜索引擎分词高亮

原创文章如转载，请注明：转载自：飞扬部落编程仓库 : http://www.busfly.net/csdn/

本文链接地址：http://www.busfly.net/csdn/post/Lucene-Highlighter-demo.html

如果你喜欢本文，请顶一下，支持我，你的支持是我继续发好文章的最大动力。谢谢。
好东西需要分享，快把本文发给你的朋友吧~!~