学步园

重要的类：Highlighter；Scorer；Formatter；Fragmenter；

简单的高亮显示实现：

public class HighlighterUtil {

	public void createSimpleHighLighter(String queryString) {
		try {
			String string="I like basketball . I like football too . " +
					"I am come from jiangxi province .";
			QueryParser queryParser=new QueryParser(Version.LUCENE_45, "text",
					new StandardAnalyzer(Version.LUCENE_45));
			Query query=queryParser.parse(queryString);
		       //Query query=new TermQuery(new Term("text", input));
			QueryScorer fragmentScorer=new QueryScorer(query,"text");
		       //SimpleSpanFragmenter fragmenter=new SimpleSpanFragmenter(fragmentScorer);
			Formatter formatter=new SimpleHTMLFormatter("<BIG>","</BIG>");
			Highlighter highlighter=new Highlighter(formatter,fragmentScorer);
		       //highlighter.setTextFragmenter(fragmenter);
			String result=highlighter.getBestFragment(new StandardAnalyzer(Version.LUCENE_45),"text",string);
			System.out.println(result);
		} catch (IOException e) {
			e.printStackTrace();
		} catch (InvalidTokenOffsetsException e) {
			e.printStackTrace();
		} catch (ParseException e) {
			e.printStackTrace();
		}
	}
}

测试：

@Test
	public void  simpleHighLighterTest() {
		HighlighterUtil highlighterUtil=new HighlighterUtil();
		highlighterUtil.createSimpleHighLighter("like");
	}

输出：

I <BIG>like</BIG> basketball . I <BIG>like</BIG> football too . I am come from jiangxi province .

这就是最基础的。当然你还可以进行扩展：比如：对文档名包含某个关键字进行高亮，对文档内容包括某个关键字进行高亮。