Lucene的 - 寻找一个数值场 [英] Lucene - searching for a numeric value field

问题描述

好吧，我有与结果过去2小时搜索这仅仅给的小费，
，而不是连一个完整的代码救援（怎么会菜鸟学习，如果他们不能看到一些样品吗？）

ok, i have searched for this in the past two hours with results that only give's tips, and not even one complete code to the rescue ( how would noobs learn if they cant see some samples ? )

我创建了一个索引像这样：

i have created an index like so:

Directory directory = FSDirectory.Open(new System.IO.DirectoryInfo(Server.MapPath("/data/channels/")));
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_29);
IndexWriter writer = new IndexWriter(directory, analyzer, true, Lucene.Net.Index.IndexWriter.MaxFieldLength.UNLIMITED);
Document doc = new Document();
doc.Add(new Field("ID", "0", Field.Store.YES, Field.Index.NO));
doc.Add(new Field("parentID", "0", Field.Store.YES, Field.Index.NO));
doc.Add(new Field("Title", "Root", Field.Store.YES, Field.Index.ANALYZED));
writer.AddDocument(doc);
writer.Optimize();
writer.Close();

现在，我想搜索字段 ID 中值等于 0 （获取单个记录，我有没有）......

Now, i want to search for the field ID Where the value equals 0 ( to get the single record i have there )....

但，一个简单的搜索是这样的：

but, a simple search like this:

Directory directory = FSDirectory.Open(new System.IO.DirectoryInfo(Server.MapPath("/data/channels")));
Analyzer analyzer = new Lucene.Net.Analysis.Standard.StandardAnalyzer(Version.LUCENE_29);
Searcher searcher = new Lucene.Net.Search.IndexSearcher(IndexReader.Open(directory, true));
Query query = new Lucene.Net.QueryParsers.QueryParser(Version.LUCENE_29, "ID", analyzer).Parse("0");
Hits hits = searcher.Search(query);

返回任何结果。
I读过关于 NumericRange ， KeywordAnalyzer 和一些更多的东西，
，但由于他们没有提供了一个示例我无法弄清楚如何做到这一点。

returns no results. i have read about NumericRange, KeywordAnalyzer and some more things, but since none of them provides a sample i could not figure out how to do it.

请，善良的人，给我如何让这件事工作的例子。

please, kind people, give me an example of how to make this thing work.

推荐答案

修改 Field.Index.NO 到 Field.Index。 ANALYZED （或 Field.Index.NOT_ANALYZED ）的ID字段

Change Field.Index.NO to Field.Index.ANALYZED (or Field.Index.NOT_ANALYZED) in ID field

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