我最近开始使用 Lucene.NET,但遇到了一些问题:我使用 anIndexWriter
来索引我的文档C:\\TestIndex
,我猜它在其中工作,因为它生成了几个.fnm
, .frq
, .cfx
, .tii
,.tis
文件。
问题是当试图通过它们进行简单搜索时,我再也没有得到任何结果。下面是我使用的代码,
using Lucene.Net.Documents;
using Lucene.Net.Index;
using Lucene.Net.QueryParsers;
using Lucene.Net.Search;
using Lucene.Net.Store;
using Lucene.Net.Util;
//Provide the directory where index is stored
Directory directory = FSDirectory.Open(newSystem.IO.DirectoryInfo(@"C:\\TestIndex"));
IndexReader indexReader = IndexReader.Open(directory, true);
Searcher indexSearch = new IndexSearcher(indexReader);
Analyzer std = new StandardAnalyzer(Version.LUCENE_29);
QueryParser parser = new QueryParser(Version.LUCENE_29, "text", std);
Query qry = parser.Parse("morning");
// true opens the index in read only mode
Searcher srchr = new IndexSearcher(IndexReader.Open(directory, true));
TopScoreDocCollector cllctr = TopScoreDocCollector.Create(100, true);
ScoreDoc[] hits = cllctr.TopDocs().ScoreDocs;
srchr.Search(qry, cllctr);
for (int i = 0; i < hits.Length; i++)
{
int docId = hits[i].Doc;
float score = hits[i].Score;
Document doc = srchr.Doc(docId);
Console.WriteLine("Searched from Text: " + doc.Get("text"));
}
我尝试了几种方法,但从未得到任何结果。你有什么主意吗?
下面是索引代码,
IndexWriter indexWriter =
new IndexWriter(
luceneDir,
new StandardAnalyzer(Version.LUCENE_29),
true,
IndexWriter.MaxFieldLength.UNLIMITED);
string[] listOfFiles = Directory.GetFiles(@"C:\Projects\lucene.net-trunk\build\vs2010\demo\MyTestProject\TestDocs");
foreach (string s in listOfFiles)
{
String content = File.ReadAllText(s);
Document doc = new Document();
String title = s;
// adding title field
doc.Add(new Field("title", title, Field.Store.YES, Field.Index.NOT_ANALYZED));
doc.Add(new Field("content", content, Field.Store.YES, Field.Index.ANALYZED));
indexWriter.AddDocument(doc);
}
indexWriter.Optimize();
indexWriter.Dispose();