用.net写了一个lucene的建立索引和查找索引

看到网上一些资料lucene都是java版的，今天上午写了一个.net

 

首先下个lucene吧，网上一大堆，我不说了，我用的是1.9final那个版本，然后说添加引用

 

然后是

using Lucene.Net;
using Lucene.Net.Documents;
using Lucene.Net.Index;
using Lucene.Net.QueryParsers;
using Lucene.Net.Search;
using Lucene.Net.Store;
using Lucene.Net.Util;
using Lucene.Net.Analysis;
using Lucene.Net.Analysis.Cn;
using Lucene.Net.Analysis.Standard;

 

把这些加进去，就可以写了

 

 

public void Index()
  {
   IndexWriter writer = new IndexWriter(directory,analyzer,true);
   writer.maxFieldLength=1000;

   for(int i=1;i<=100;i++)
   {
    Document document = new Document();
    document.Add(new Field(FieldName,"name"+i,Field.Store.YES,Field.Index.UN_TOKENIZED));
    document.Add(new Field(FieldValue,"Hello World",Field.Store.YES,Field.Index.TOKENIZED));

    writer.AddDocument(document);
   }

   writer.Optimize();
   writer.Close();
  }

  public void Search()
  {
   Query query = QueryParser.Parse("name*",FieldName,analyzer);

   IndexSearcher searcher = new IndexSearcher(directory);

   Hits hits = searcher.Search(query);

   Console.WriteLine("符合条件记录:{0};索引库记录总数:{1}",hits.Length(),searcher.Reader.NumDocs());
   
   for(int i=0;i   {
    int docid = hits.Id(i);

    string name = hits.Doc(i).Get(FieldName);
    string value = hits.Doc(i).Get(FieldValue);

    float score = hits.Score(i);

    Console.WriteLine("{0}: DocId:{1}; Name:{2}; Value:{3}; Score:{4}", i + 1, docid, name, value, score);
   }

   searcher.Close();

   Console.WriteLine("查找结束！");
   Console.ReadLine();
  }