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POLucene.Net what am I doing wrong?
 

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    <p>I'm very new to lucene.net. I wrote this simple console app in C# which indexes some fake data. I then wanted to be able to search the index for various terms using a booleanquery.</p> <p>I never get any results back. Here is the code. Any help would be greatly appreciated. Thanks.</p> <pre><code> static void Main(string[] args) { StandardAnalyzer analyzer = new StandardAnalyzer(); IndexWriter writer = new IndexWriter("Test", analyzer, true); Console.WriteLine("Creating index"); for (int i = 0; i &lt; 1500; i++) { Lucene.Net.Documents.Document doc = new Lucene.Net.Documents.Document(); doc.Add(new Lucene.Net.Documents.Field("A", i.ToString(), Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.NO)); doc.Add(new Lucene.Net.Documents.Field("B", "LALA" + i.ToString(), Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.NO)); doc.Add(new Lucene.Net.Documents.Field("C", "DODO" + i.ToString(), Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.NO)); doc.Add(new Lucene.Net.Documents.Field("D", i.ToString() + " MMMMM", Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.NO)); writer.AddDocument(doc); } writer.Optimize(); writer.Close(); BooleanQuery query = new BooleanQuery(); query.Add(new WildcardQuery(new Term("B", "lala*")), Lucene.Net.Search.BooleanClause.Occur.MUST); query.Add(new WildcardQuery(new Term("C", "DoDo1*")), Lucene.Net.Search.BooleanClause.Occur.MUST); IndexSearcher searcher = new IndexSearcher("Test"); Hits hits = searcher.Search(query); if (hits.Length() &gt; 0) { for (int i = 0; i &lt; hits.Length(); i++) { Console.WriteLine("{0} - {1} - {2} - {3}", hits.Doc(i).GetField("A").StringValue(), hits.Doc(i).GetField("B").StringValue(), hits.Doc(i).GetField("C").StringValue(), hits.Doc(i).GetField("D").StringValue()); } } searcher.Close(); Console.WriteLine("Done"); Console.ReadLine(); } </code></pre> <p>I then got it to work by using MultiFieldQueryParser Like so:</p> <pre><code> static void Main(string[] args) { StandardAnalyzer analyzer = new StandardAnalyzer(); IndexWriter writer = new IndexWriter("Test", analyzer, true); Console.WriteLine("Creating index"); for (int i = 0; i &lt; 1500; i++) { Lucene.Net.Documents.Document doc = new Lucene.Net.Documents.Document(); doc.Add(new Lucene.Net.Documents.Field("A", i.ToString(), Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.TOKENIZED)); doc.Add(new Lucene.Net.Documents.Field("B", "LALA" + i.ToString(), Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.TOKENIZED)); doc.Add(new Lucene.Net.Documents.Field("C", "DODO" + i.ToString(), Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.TOKENIZED)); doc.Add(new Lucene.Net.Documents.Field("D", i.ToString() + " MMMMM", Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.TOKENIZED)); writer.AddDocument(doc); } writer.Optimize(); writer.Close(); BooleanQuery.SetMaxClauseCount(5000); Query query = MultiFieldQueryParser.Parse(new string[] { "LALA*", "DODO*" }, new string[] { "B", "C" }, analyzer); IndexSearcher searcher = new IndexSearcher("Test"); Hits hits = searcher.Search(query); if (hits.Length() &gt; 0) { for (int i = 0; i &lt; hits.Length(); i++) { Console.WriteLine("{0} - {1} - {2} - {3}", hits.Doc(i).GetField("A").StringValue(), hits.Doc(i).GetField("B").StringValue(), hits.Doc(i).GetField("C").StringValue(), hits.Doc(i).GetField("D").StringValue()); } } searcher.Close(); Console.WriteLine("Done"); Console.ReadLine(); } </code></pre> <p>This is possibly the best article I've found for any new lucene developers: <a href="http://www.ifdefined.com/blog/post/2009/02/Full-Text-Search-in-ASPNET-using-LuceneNET.aspx" rel="nofollow noreferrer">http://www.ifdefined.com/blog/post/2009/02/Full-Text-Search-in-ASPNET-using-LuceneNET.aspx</a></p>
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