Lucene - 搜索数值字段
好吧，我在过去的两个小时里搜索了这个，结果只给出了提示， 甚至没有一个完整的代码来救援（如果菜鸟看不到一些样本，他们如何学习？）
我已经创建了一个索引，如下所示：
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 值所在的位置等于0（获取我在那里的单个记录）......
但是，像这样的简单搜索：
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);
不返回任何结果。 我读过有关 NumericRange、KeywordAnalyzer 以及更多内容， 但由于他们都没有提供示例，我不知道该怎么做。
请善良的人们给我一个如何让这件事发挥作用的例子。
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 ? )
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();
Now, i want to search for the field ID Where the value equals 0 ( to get the single record i have there )....
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);
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.
please, kind people, give me an example of how to make this thing work.
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我使用 NumericField 和 NumericRangeQuery 来搜索 Lucene 索引中的数字。
创建索引时：
然后使用查询：
将返回 TaxonRankSortOrder 等于 3000 的所有文档。
您必须自己创建查询，而不是使用 QueryParser，因此很想看看是否还有更好的方法。
I have used NumericField and a NumericRangeQuery to search Lucene indexes for numbers.
When creating the index:
And then using a query:
Will return all documents with a TaxonRankSortOrder equal to 3000.
You have to create the query yourself rather than using a QueryParser so would be keen to see if there is a better approach as well.
将 ID 字段中的
Field.Index.NO更改为Field.Index.ANALYZED（或Field.Index.NOT_ANALYZED）Change
Field.Index.NOtoField.Index.ANALYZED(orField.Index.NOT_ANALYZED) in ID field