Lucene之——设置高亮核心代码

来源：互联网发布：兰格钢铁知乎编辑：程序博客网时间：2024/05/16 05:04

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不多说，不废话，直接上代码

package com.lyz.d;import org.apache.lucene.search.Query;import org.apache.lucene.search.highlight.Formatter;import org.apache.lucene.search.highlight.Highlighter;import org.apache.lucene.search.highlight.QueryScorer;import org.apache.lucene.search.highlight.Scorer;import org.apache.lucene.search.highlight.SimpleFragmenter;import org.apache.lucene.search.highlight.SimpleHTMLFormatter;/** * 高亮工具类 * @author liuyazhuang * */public class HighlighterUtil {private static Formatter formatter = null;private static Scorer scorer = null;static{formatter = new SimpleHTMLFormatter("<font color='red'>", "</font>");}/** * 设置高亮 * @param query：查询的query * @param field:高亮的字段 * @param value:高亮的值 * @param size:大小 * @return：高亮后的数据 */public static String setHighData(Query query, String field, String value, int size){String result = null;scorer = new QueryScorer(query);//高亮工具类Highlighter highlighter  = new Highlighter(formatter, scorer);//设置数据长度highlighter.setTextFragmenter(new SimpleFragmenter(size));try {result = highlighter.getBestFragment(Configuration.getAnalyzer(), field, value);if(result == null){if(value.length() > size){result = value.substring(0, size);}else{result = value;}}} catch (Exception e) {e.printStackTrace();throw new RuntimeException(e);}return result;}}

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