我正在尝试通过索引值（PAR-17-252）查找文档。我使用
Dim d As Lucene.Net.Store.Directory = FSDirectory.Open(New DirectoryInfo(p))
Dim a As Analyzer = New StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30)
Dim indexWriter As IndexWriter = New IndexWriter(d, a, True, indexWriter.MaxFieldLength.UNLIMITED)
doc.Add(New Field("GrantID", dr("GrantID").ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED))
我寻找着
term = term.Replace("-", " ")
term = term.Replace("/", " ")
Dim phases As String() = Nothing
phases = Split(term, ",")
For Each phase As String In phases
q.Add(parser.Parse(phase), Occur.SHOULD)
Next
现在我知道“-”导致了一个问题，但我不知道如何处理它。如果我不把它从搜索词中取出，我什么也得不到，如果我把它留在搜索词中，我什么也得不到。PAR-17-252是一个记录名称索引。如果我把它取出并尝试搜索短语“PAR17 252”，我仍然一无所获。
任何帮助都很感激。我已经读了这里关于Lucene.net和仍然有一些麻烦的一切。
您想使用KeywordAnalyzer搜索该字段。这里有一些C#为您的用例演示KeywordAnalyzer，抱歉它不vb.net-但您应该了解要点。
var field_GrantID = "GrantID";
var field_value = "PAR-17-252";
var luceneVer = Lucene.Net.Util.Version.LUCENE_30;
using (var writer = new IndexWriter(new RAMDirectory(), new StandardAnalyzer(luceneVer), IndexWriter.MaxFieldLength.UNLIMITED))
{
var doc = new Document();
// NOT_ANALYZED means index the field as presented.
doc.Add(new Field(field_GrantID, field_value, Field.Store.YES, Field.Index.NOT_ANALYZED));
writer.AddDocument(doc);
writer.Commit();
using (var searcher = new IndexSearcher(writer.GetReader()))
{
var parser = new QueryParser(luceneVer, field_GrantID, new KeywordAnalyzer());
var queryText = String.Format("{0}:{1}", field_GrantID, field_value);
var query = parser.Parse(queryText);
var topDocs = searcher.Search(query, null, 100);
Console.WriteLine("Total Hits for query {0} : {1}", query, topDocs.TotalHits);
}
}
您可能需要搜索多个字段，请查看MultiFieldQueryParser
