Lucene.NET和Facete搜索解决方案

如何解决Lucene.NET和Facete搜索解决方案

| 嘿，刚开始使用Lucene.NET，有人想知道是否有人通过一个经过多面搜索的Lucene.NET实例。 我知道以下链接http://www.devatwork.nl/articles/lucenenet/faceted-search-and-drill-down-lucenenet/ 看起来不错，但它所做的只是告诉我多面搜索的结果数量，但实际上却不告诉我如何检索这些结果的索引和详细信息。即与在Lucene.NET中进行常规搜索一样。 即从该链接，他有以下片段

    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);
}

这将告诉我，即搜索词“都柏林”有2条记录，而类型为“财务”，这很完美，但本文似乎跳过了该部分，它说了如何检索这些索引的部分结果并显示在屏幕上。 他的确在下面的链接中对此进行了说明，以进行常规搜索，但不进行面搜索。 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 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/ 任何帮助将不胜感激 编辑： 还是应该执行搜索查询，然后对结果进行过滤？     

解决方法

BitArray代表匹配。每个1都有一个索引，等于文档ID 因此1001001表示索引中位置为0、3和6的文档与您的搜索匹配。您只需要从Lucene索引中检索它们即可。

var searcher = new IndexSearcher(indexPath);

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