使用特殊字符“＃”的通配符搜索不工作 [英] Wildcard search with special characters "#" not working

问题描述

我在我的网站上使用Lucene.Net 3.0.3.0版本来搜索课程列表。

我的课程很少包含特殊字符＃，如C＃，C＃.Net等等。



但是当我用C＃这个词搜索它时会显示0个结果。



我正在使用StandardAnalyzer和MultiFieldQueryParser也允许通配符搜索（AllowLeadingWildcard = true）。



[删除重复代码]



当我用C＃这个词搜索时，请告诉我要检索结果我需要做些什么。



谢谢，

Singaravelu R



我的尝试：

I’m using Lucene.Net 3.0.3.0 version in my website to search list of courses.
I have few courses which contains the special character "#" like, C#, C#.Net, etc.

But When I search with the term "C#" it showing 0 results.

I’m using StandardAnalyzer and MultiFieldQueryParser also allowing wildcard search (AllowLeadingWildcard = true).

[duplicate code removed]

Kindly let me know what I have to do to retrieve the result when I search with the term "C#".

Thanks,
Singaravelu R

What I have tried:

var analyzer = new StandardAnalyzer(Version.LUCENE_30, stopWords);
{
	BooleanQuery query = new BooleanQuery();
	var nameParser = new MultiFieldQueryParser(Version.LUCENE_30, new[] { "Column1", " Column2", " Column3" }, analyzer);
	if (!string.IsNullOrEmpty(searchCriteria.CourseName))
	{
		query.Add(parseQuery(GetTerms(searchCriteria.CourseName.ReplaceDiacritics()), nameParser), Occur.MUST);
	}

	ScoreDoc[] hits = searcher.Search(query, null, hits_limit, Sort.RELEVANCE).ScoreDocs;
	var results = _mapLuceneToDataList(hits, searcher);
	analyzer.Close();
	searcher.Dispose();
	return results;
}

索引：正确索引和存储单词C＃。

For indexing: The word "C#" indexed and stored correctly.

doc.Add(new Field("Title", 
                  sampleData.CourseName, 
                  Field.Store.YES, 
                  Field.Index.ANALYZED));

推荐答案

是的我已经根据Lucene问题跟踪器https://issues.apache.org/中提供的建议创建了我自己的分析器jira / browse / LUCENENET-595。



现在它运作良好。



谢谢，

Singaravelu

Yes I have created my own Analyzer by the suggestion provided in the Lucene issue tracker "https://issues.apache.org/jira/browse/LUCENENET-595".

Now its working well.

Thanks,
Singaravelu

这篇关于使用特殊字符“＃”的通配符搜索不工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！