출처 : http://scblood.egloos.com/4808640

http://scblood.egloos.com/4809069

http://scblood.egloos.com/4809098

http://scblood.egloos.com/4809132

.net 한글 형태소 분석기 : http://www.sysnet.pe.kr/2/0/1500

인덱스 생성

static Lucene.Net.Store.Directory GetDirectory()

{

return new SimpleFSDirectory(new DirectoryInfo(@"D:\SampleIndex"));

}

static Analyzer GetAnalyzer()

{

//return new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);

return new WhitespaceAnalyzer();

}

static void BuildIndex()

{

SqlConnection con = new SqlConnection("server=(local);uid=id;pwd=pwd&;database=database;");

con.Open();

SqlCommand com = new SqlCommand();

com.Connection = con;

com.CommandText = "select ComID, FullName, FullNameEn, Name, NameEn from COM_Info";

SqlDataReader dr = com.ExecuteReader();

using (var directory = GetDirectory())

using (var analyzer = GetAnalyzer())

using (var writer = new IndexWriter(directory, analyzer, IndexWriter.MaxFieldLength.UNLIMITED))

{

writer.DeleteAll();

while (dr.Read())

{

Document doc = new Document();

doc.Add(new NumericField("ComID", Field.Store.YES, true).SetIntValue((int)dr["ComID"]));

doc.Add(new Field("FullName", (string)dr["FullName"], Field.Store.YES, Field.Index.ANALYZED));

doc.Add(new Field("FullNameEn", (string)dr["FullNameEn"], Field.Store.YES, Field.Index.ANALYZED));

doc.Add(new Field("Name", (string)dr["Name"], Field.Store.YES, Field.Index.ANALYZED));

doc.Add(new Field("NameEn", (string)dr["NameEn"], Field.Store.YES, Field.Index.ANALYZED));

writer.AddDocument(doc);

}

}

}

인덱스 검색

static List<string> Search(string keywords, int limit, out int count)

{

using (var directory = GetDirectory())

using (var searcher = new IndexSearcher(directory))

{

var parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, "FullName", GetAnalyzer());

parser.AllowLeadingWildcard = true; //와일드카드 사용유무

//조합형으로 AND OR 등을 사용해서 만들 수 있다.

string searchParam = "FullName:*" + keywords + "*";

var query = parser.Parse(searchParam);

var sort = new Sort(new SortField("FullName", SortField.STRING), SortField.FIELD_SCORE);

var collector = TopFieldCollector.Create(sort, limit, false, true, true, true);

searcher.Search(query, collector);

var docs = collector.TopDocs().ScoreDocs;

count = docs.Length;

var rtnList = new List<string>();

foreach (ScoreDoc d in docs)

{

Document doc = searcher.Doc(d.Doc);

string fullName = doc.Get("FullName");

rtnList.Add(fullName);

}

return rtnList;

}

}

루씬 테스트