Lucene.NET＆Facete搜索解決方案

Question

剛剛開始使用Lucene.NET，任何人都想知道是否有人用分面搜索的Lucene.NET的工作示例。

我知道這下面的鏈接http://www.devatwork.nl/articles/lucenenet/faceted-search-and-drill-down-lucenenet/

這看起來很棒，但它的作用是告訴我結果的數量在面搜索但實際上沒有我怎麼可以檢索這些結果的指標和細節。即在Lucene.NET中進行正常搜索。

從該鏈接他有下面的代碼片段

private static void FacetedSearch(string indexPath, string genre, string term){ 
var searcher = new IndexSearcher(indexPath); 
// first get the BitArray result from the genre query 
var genreQuery = new TermQuery(new Term("genre", genre)); 
var genreQueryFilter = new QueryFilter(genreQuery); 
BitArray genreBitArray = genreQueryFilter.Bits(searcher.GetIndexReader()); 
Console.WriteLine("There are " + GetCardinality(genreBitArray) + " document with the genre " + genre); 

// Next perform a regular search and get its BitArray result 
Query searchQuery = MultiFieldQueryParser.Parse(term, new[] {"title", "description"}, new[] {BooleanClause.Occur.SHOULD, BooleanClause.Occur.SHOULD}, new StandardAnalyzer()); 
var searchQueryFilter = new QueryFilter(searchQuery); 
BitArray searchBitArray = searchQueryFilter.Bits(searcher.GetIndexReader()); 
Console.WriteLine("There are " + GetCardinality(searchBitArray) + " document containing the term " + term); 

// Now do the faceted search magic, combine the two bit arrays using a binary AND operation 
BitArray combinedResults = searchBitArray.And(genreBitArray); 
Console.WriteLine("There are " + GetCardinality(combinedResults) + " document containing the term " + term + " and which are in the genre " + genre); 
} 

它會告訴我即有2個記錄搜索詞「都柏林」，並且即是在體裁「金融」，這是完美的，但文章似乎跳過了它說我如何檢索這些結果的索引並顯示在屏幕上的部分。

他沒有解釋在下面的鏈接，正常的搜索，但沒有facete搜索..

即普通搜索

private static void Search(string indexPath, string term) 
{ 
// create searcher 
var searcher = new IndexSearcher(indexPath); 

// create a query which searches through the title and description, the term can be in the title or the description 
Query searchQuery = MultiFieldQueryParser.Parse(term, new[] {"title", "description"}, new[] {BooleanClause.Occur.SHOULD, BooleanClause.Occur.SHOULD}, new StandardAnalyzer()); 

// perform the search 
Hits hits = searcher.Search(searchQuery); 

// loop through all the hits and show their title 
for (int hitIndex = 0; hitIndex < hits.Length(); hitIndex++) 
{ 
// get the corresponding document 
Document hitDocument = hits.Doc(hitIndex); 

// write its title to the console 
Console.WriteLine(hitDocument.GetField("title").StringValue()); 
} 
} 

http://www.devatwork.nl/articles/lucenenet/search-basics-lucenenet/

任何幫助，將不勝感激

編輯：

或s我應該做一個搜索查詢，然後對結果進行過濾嗎？

Answer 1

BitArray表示命中。每個1都有一個索引，它等於文檔編號

因此，1001001表示索引中位置爲0,3和6的文檔與您的搜索匹配。你只需要從lucene索引中檢索它們。

var searcher = new IndexSearcher(indexPath); 

// get document at position 0 
var doc = searcher.Doc(0);