19、学习Lucene3.5索引之高亮搜索

/**
* Lucene高亮显示：
* 1.引入“lucene-highlighter”包
*/
public class HighLighter {

private IndexReader indexReader;

public void highLightTest(){
try {
String str = "我是一只丑小鸭，咿呀咿呀呦！门前一只鸭，四五六七八；鹅鹅鹅，曲项向天歌，白毛浮绿水，红掌拨清波";
QueryParser queryParser = new QueryParser(Version.LUCENE_35, "f", new MMSegAnalyzer());
Query query = queryParser.parse("鸭 一只");
//1.查询评分
QueryScorer queryScorer = new QueryScorer(query);
//2.对文本进行分段
Fragmenter fragmenter = new SimpleSpanFragmenter(queryScorer);
//3.设置高亮显示的样式
Formatter formatter = new SimpleHTMLFormatter("<span>", "</span>");
//4.高亮显示
Highlighter highlighter = new Highlighter(formatter, queryScorer);
//5.设置分段
highlighter.setTextFragmenter(fragmenter);
//6.得到分段后的高亮文本
String txt = highlighter.getBestFragment(new MMSegAnalyzer(), "f", str);
System.out.println(txt);
} catch (ParseException e) {
e.printStackTrace();
} catch (InvalidTokenOffsetsException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}