使用Lucene.Net精确查找

Question

我已经看到过几个类似的问题，但我仍然没有答案。我想我有一个简单的问题。

在句子

在本文中，只有元文件很重要，测试生成。 其他任何东西都是不相关的

我想索引仅元文件和测试代。这意味着我需要完全匹配。 有人可以请解释我如何做到这一点？

这里是代码：

Analyzer analyzer = new StandardAnalyzer();     
Lucene.Net.Store.Directory directory = new RAMDirectory(); 
indexWriter iwriter = new IndexWriter(directory, analyzer, true); 
iwriter.SetMaxFieldLength(10000); 
Document doc = new Document(); 
doc.Add(new Field("textFragment", text, Field.Store.YES, Field.Index.TOKENIZED,  Field.TermVector.YES)); 
iwriter.AddDocument(doc); 
iwriter.Close(); 
IndexSearcher isearcher = new IndexSearcher(directory); 
QueryParser parser = new QueryParser("textFragment", analyzer); 

foreach (DictionaryEntry de in OntologyLayer.OntologyLayer.HashTable) 
{     
List<string> buffer = new List<string>(); 
double weight = 0; 
List<OntologyLayer.Term> list = (List<OntologyLayer.Term>)de.Value; 

foreach (OntologyLayer.Term t in list) 
{ 
    Hits hits = null; 
    string label = t.Label; 
    string[] words = label.Split(' ');       
    int numOfWords = words.Length; 
    double wordWeight = 1/(double)numOfWords;   
    double localWeight = 0; 
    foreach (string a in words) 
    { 
     try 
     { 
      if (!buffer.Contains(a)) 
      {          
       Lucene.Net.Search.Query query = parser.Parse(a); 
       hits = isearcher.Search(query); 
       if (hits != null && hits.Length() > 0) 
       {                                        
        localWeight = localWeight + t.Weight * wordWeight * hits.Length(); 
       } 
        buffer.Add(a); 
      } 
     } 
     catch (Exception ex) 
     {} 
    } 
     weight = weight + localWeight; 
} 

sbWeight.AppendLine(weight.ToString()); 

if (weight > 0) 
{ 
    string objectURI = (string)de.Key; 
    conceptList.Add(objectURI); 
} 

}

Answer 1

在Stupid Lucene Tricks: Exact Match, Starts With, Ends With看看。