Lucene查询结果：获取查询

Question

为了在Lucene查询返回的文档中显示突出显示的匹配单词，Lucene搜索结果可能包含用于将文档作为匹配我的请求的单词。

例如：

• Lucene查询：＆＃34;狗猫＆＃34;

• 结果：[＆＃34; 狗很好＆＃34;＆＃34; 狗和猫是朋友＆ ＃34;]

如何通过Lucene实现这一目标？我无法手动处理猫 s 或狗 s 或请求的字词与返回的字词之间的任何差异。

Answer 1

使用Lucene的Highlighter。像这样：

//By default, this formatter will wrap highlights with <b>, but that is configurable.
Formatter formatter = new SimpleHTMLFormatter(); 
QueryScorer scorer = new QueryScorer(query);
Highlighter highlighter = new Highlighter(formatter, queryScorer);
//You can set a fragmenter as well, by default it will split into fragments 100 chars in size, using SimpleFragmenter.

String highlightedSnippet = highlighter.getBestFragment(myAnalyzer, fieldName, fieldContent);