public void RemoveFromIndex(string[] keys, string value)
{
var analyzer = new AccentedAnalyzer();
var query = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_29, keys, analyzer);
var directory = FSDirectory.Open(System.IO.Directory.GetParent(IndexPath));
IndexReader idxReader = IndexReader.Open(indexPath);
var searcher = new IndexSearcher(directory, true);
query.SetDefaultOperator(QueryParser.Operator.AND);
var q = query.Parse(value);
int top = idxReader.MaxDoc();
var results = TopScoreDocCollector.create(top, true);
searcher.Search(q, results);
ScoreDoc[] hits = results.TopDocs().scoreDocs;
Document[] documents = new Document[hits.Length];
IndexReader indexReader = null;
for (int i = 0; i < hits.Length; i++)
{
int docId = hits[i].doc;
indexReader = IndexReader.Open(directory, false);
indexReader.DeleteDocument(docId);
indexReader.Commit();
indexReader.Flush();
indexReader.Close();
}
searcher.Close();
directory.Close();
}
public virtual void TestSimple()
{
System.String[] fields = new System.String[] { "b", "t" };
MultiFieldQueryParser mfqp = new MultiFieldQueryParser(fields, new StandardAnalyzer());
Query q = mfqp.Parse("one");
Assert.AreEqual("b:one t:one", q.ToString());
q = mfqp.Parse("one two");
Assert.AreEqual("(b:one t:one) (b:two t:two)", q.ToString());
q = mfqp.Parse("+one +two");
Assert.AreEqual("+(b:one t:one) +(b:two t:two)", q.ToString());
q = mfqp.Parse("+one -two -three");
Assert.AreEqual("+(b:one t:one) -(b:two t:two) -(b:three t:three)", q.ToString());
q = mfqp.Parse("one^2 two");
Assert.AreEqual("((b:one t:one)^2.0) (b:two t:two)", q.ToString());
q = mfqp.Parse("one~ two");
Assert.AreEqual("(b:one~0.5 t:one~0.5) (b:two t:two)", q.ToString());
q = mfqp.Parse("one~0.8 two^2");
Assert.AreEqual("(b:one~0.8 t:one~0.8) ((b:two t:two)^2.0)", q.ToString());
q = mfqp.Parse("one* two*");
Assert.AreEqual("(b:one* t:one*) (b:two* t:two*)", q.ToString());
q = mfqp.Parse("[a TO c] two");
Assert.AreEqual("(b:[a TO c] t:[a TO c]) (b:two t:two)", q.ToString());
q = mfqp.Parse("w?ldcard");
Assert.AreEqual("b:w?ldcard t:w?ldcard", q.ToString());
q = mfqp.Parse("\"foo bar\"");
Assert.AreEqual("b:\"foo bar\" t:\"foo bar\"", q.ToString());
q = mfqp.Parse("\"aa bb cc\" \"dd ee\"");
Assert.AreEqual("(b:\"aa bb cc\" t:\"aa bb cc\") (b:\"dd ee\" t:\"dd ee\")", q.ToString());
q = mfqp.Parse("\"foo bar\"~4");
Assert.AreEqual("b:\"foo bar\"~4 t:\"foo bar\"~4", q.ToString());
// LUCENE-1213: MultiFieldQueryParser was ignoring slop when phrase had a field.
q = mfqp.Parse("b:\"foo bar\"~4");
Assert.AreEqual("b:\"foo bar\"~4", q.ToString());
// make sure that terms which have a field are not touched:
q = mfqp.Parse("one f:two");
Assert.AreEqual("(b:one t:one) f:two", q.ToString());
// AND mode:
mfqp.SetDefaultOperator(QueryParser.AND_OPERATOR);
q = mfqp.Parse("one two");
Assert.AreEqual("+(b:one t:one) +(b:two t:two)", q.ToString());
q = mfqp.Parse("\"aa bb cc\" \"dd ee\"");
Assert.AreEqual("+(b:\"aa bb cc\" t:\"aa bb cc\") +(b:\"dd ee\" t:\"dd ee\")", q.ToString());
}
public virtual void TestStopWordSearching()
{
Analyzer analyzer = new StandardAnalyzer();
Directory ramDir = new RAMDirectory();
IndexWriter iw = new IndexWriter(ramDir, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);
Document doc = new Document();
doc.Add(new Field("body", "blah the footest blah", Field.Store.NO, Field.Index.ANALYZED));
iw.AddDocument(doc);
iw.Close();
MultiFieldQueryParser mfqp = new MultiFieldQueryParser(new System.String[] { "body" }, analyzer);
mfqp.SetDefaultOperator(QueryParser.Operator.AND);
Query q = mfqp.Parse("the footest");
IndexSearcher is_Renamed = new IndexSearcher(ramDir);
ScoreDoc[] hits = is_Renamed.Search(q, null, 1000).ScoreDocs;
Assert.AreEqual(1, hits.Length);
is_Renamed.Close();
}
/// <summary>
/// 从索引搜索结果
/// </summary>
private TopDocs SearchIndex(string indexdic, string keyword)
{
PanGu.Segment.Init(PanGuXmlPath);
Dictionary<string, string> dic = new Dictionary<string, string>();
BooleanQuery bQuery = new BooleanQuery();
string title = string.Empty;
if ((keyword != null && keyword != ""))
{
title = GetKeyWordsSplitBySpace(keyword);
QueryParser parse = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_29, new String[] { "Title", "Content" }, PanGuAnalyzer);
Lucene.Net.Search.Query query = parse.Parse(title);
parse.SetDefaultOperator(QueryParser.Operator.AND);
bQuery.Add(query, BooleanClause.Occur.MUST);
dic.Add("title", keyword);
}
if (bQuery != null && bQuery.GetClauses().Length > 0)
{
return GetSearchResult(bQuery, dic, indexdic);
}
else
{
return null;
}
}
public virtual void TestSimple()
{
System.String[] fields = new System.String[]{"b", "t"};
MultiFieldQueryParser mfqp = new MultiFieldQueryParser(fields, new StandardAnalyzer());
Query q = mfqp.Parse("one");
Assert.AreEqual("b:one t:one", q.ToString());
q = mfqp.Parse("one two");
Assert.AreEqual("(b:one t:one) (b:two t:two)", q.ToString());
q = mfqp.Parse("+one +two");
Assert.AreEqual("+(b:one t:one) +(b:two t:two)", q.ToString());
q = mfqp.Parse("+one -two -three");
Assert.AreEqual("+(b:one t:one) -(b:two t:two) -(b:three t:three)", q.ToString());
q = mfqp.Parse("one^2 two");
Assert.AreEqual("((b:one t:one)^2.0) (b:two t:two)", q.ToString());
q = mfqp.Parse("one~ two");
Assert.AreEqual("(b:one~0.5 t:one~0.5) (b:two t:two)", q.ToString());
q = mfqp.Parse("one~0.8 two^2");
Assert.AreEqual("(b:one~0.8 t:one~0.8) ((b:two t:two)^2.0)", q.ToString());
q = mfqp.Parse("one* two*");
Assert.AreEqual("(b:one* t:one*) (b:two* t:two*)", q.ToString());
q = mfqp.Parse("[a TO c] two");
Assert.AreEqual("(b:[a TO c] t:[a TO c]) (b:two t:two)", q.ToString());
q = mfqp.Parse("w?ldcard");
Assert.AreEqual("b:w?ldcard t:w?ldcard", q.ToString());
q = mfqp.Parse("\"foo bar\"");
Assert.AreEqual("b:\"foo bar\" t:\"foo bar\"", q.ToString());
q = mfqp.Parse("\"aa bb cc\" \"dd ee\"");
Assert.AreEqual("(b:\"aa bb cc\" t:\"aa bb cc\") (b:\"dd ee\" t:\"dd ee\")", q.ToString());
q = mfqp.Parse("\"foo bar\"~4");
Assert.AreEqual("b:\"foo bar\"~4 t:\"foo bar\"~4", q.ToString());
// LUCENE-1213: MultiFieldQueryParser was ignoring slop when phrase had a field.
q = mfqp.Parse("b:\"foo bar\"~4");
Assert.AreEqual("b:\"foo bar\"~4", q.ToString());
// make sure that terms which have a field are not touched:
q = mfqp.Parse("one f:two");
Assert.AreEqual("(b:one t:one) f:two", q.ToString());
// AND mode:
mfqp.SetDefaultOperator(QueryParser.AND_OPERATOR);
q = mfqp.Parse("one two");
Assert.AreEqual("+(b:one t:one) +(b:two t:two)", q.ToString());
q = mfqp.Parse("\"aa bb cc\" \"dd ee\"");
Assert.AreEqual("+(b:\"aa bb cc\" t:\"aa bb cc\") +(b:\"dd ee\" t:\"dd ee\")", q.ToString());
}
public void Search(string indexDir, string q, int pageSize, int pageIndex, out int recCount)
{
indexDir = HttpContext.Current.Server.MapPath("~/Search/");
string keywords = q;
var search = new IndexSearcher(indexDir);
q = GetKeyWordsSplitBySpace(q, new PanGuTokenizer());
string[] fields = { "title", "Category", "Desc" };
QueryParser qp= new MultiFieldQueryParser(fields, new PanGuAnalyzer(true));
qp.SetDefaultOperator(Lucene.Net.QueryParsers.QueryParser.OR_OPERATOR);
//var queryParser = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "Desc", new PanGuAnalyzer(true));
Query query = qp.Parse(q);
Hits hits = search.Search(query);
// 新的查询
TopDocs newHits = search.Search(query, 100);
ScoreDoc[] scoreDocs = newHits.ScoreDocs;
for (int i = 0; i < scoreDocs.Length; i++)
{
Document document = search.Doc(scoreDocs[i].doc);
document.GetField("id").StringValue();
}
recCount = hits.Length();
int j = (pageIndex - 1) * pageSize;
for (int i = 0; i <= hits.Length() - 1; i++)
{
hits.Doc(i).GetField("Desc").StringValue();
}
search.Close();
}
public virtual void TestStopWordSearching()
{
Analyzer analyzer = new StandardAnalyzer();
Directory ramDir = new RAMDirectory();
IndexWriter iw = new IndexWriter(ramDir, analyzer, true);
Lucene.Net.Documents.Document doc = new Lucene.Net.Documents.Document();
doc.Add(new Field("body", "blah the footest blah", Field.Store.NO, Field.Index.TOKENIZED));
iw.AddDocument(doc);
iw.Close();
MultiFieldQueryParser mfqp = new MultiFieldQueryParser(new System.String[]{"body"}, analyzer);
mfqp.SetDefaultOperator(Lucene.Net.QueryParsers.QueryParser.Operator.AND);
Query q = mfqp.Parse("the footest");
IndexSearcher is_Renamed = new IndexSearcher(ramDir);
Hits hits = is_Renamed.Search(q);
Assert.AreEqual(1, hits.Length());
is_Renamed.Close();
}
public virtual void TestStopWordSearching()
{
Analyzer analyzer = new StandardAnalyzer();
Directory ramDir = new RAMDirectory();
IndexWriter iw = new IndexWriter(ramDir, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);
Document doc = new Document();
doc.Add(new Field("body", "blah the footest blah", Field.Store.NO, Field.Index.ANALYZED));
iw.AddDocument(doc);
iw.Close();
MultiFieldQueryParser mfqp = new MultiFieldQueryParser(new System.String[]{"body"}, analyzer);
mfqp.SetDefaultOperator(QueryParser.Operator.AND);
Query q = mfqp.Parse("the footest");
IndexSearcher is_Renamed = new IndexSearcher(ramDir);
ScoreDoc[] hits = is_Renamed.Search(q, null, 1000).scoreDocs;
Assert.AreEqual(1, hits.Length);
is_Renamed.Close();
}
public void Query()
{
//������ѯ��Ҫ��ʵ������
//==================================>(1)������������: File ��File2<==============================
//Lucene.Net.Index.MultiReader reader = new Lucene.Net.Index.MultiReader(new IndexReader[] { IndexReader.Open(@"\\172.16.32.189\File"), IndexReader.Open(Server.MapPath("./") + @"index\\File\\") });
Lucene.Net.Search.ParallelMultiSearcher searcher;
System.String index1 = Server.MapPath("./") + "index\\File\\";
IndexReader reader1 = IndexReader.Open(index1);//��ȡ������ȡ����ʵ�����ô�Ϊ������ȡ��reader��ȡ�ļ���Ϊindex���ļ���(Ŀ¼)
Searcher searcher1 = new IndexSearcher(reader1);//ָ��searcher(����)�� IndexReader(������ȡ��)
Analyzer analyzer = new StandardAnalyzer();//��������
System.String index2 = @"\\172.16.32.189\File";
//System.String index = Server.MapPath("./") + "index\\File2\\";//�������ڵ�Ŀ¼��
if (new System.IO.FileInfo(index2).Exists)
{
IndexReader reader2 = Lucene.Net.Index.IndexReader.Open(index2);//��ȡ������ȡ����ʵ�����ô�Ϊ������ȡ��reader��ȡ�ļ���Ϊindex���ļ���(Ŀ¼)
IndexSearcher searcher2 = new IndexSearcher(reader2);
searcher = new Lucene.Net.Search.ParallelMultiSearcher(new Lucene.Net.Search.Searchable[] { searcher1, searcher2 });
}
else
{
searcher = new Lucene.Net.Search.ParallelMultiSearcher(new Lucene.Net.Search.Searchable[] { searcher1 });
}
//==================================>(2)�����ڴ�����<==============================
//Lucene.Net.Search.IndexSearcher searcher = new IndexSearcher(ramdir);
//��ѯǰ���ѽ������ʾ���
this.result_TxtBox.Text = "";
//�����ѯ����
if (this.query_txtbox.Text.Trim(new char[] { ' ' }) == String.Empty)
return;
System.String Query_condition = this.query_txtbox.Text.Trim();
//====================>(1)�����ѯ����<==============================================
//System.String field= "title";//���ڱ�����ҳɹ����ļ����ڵ�Ŀ¼
//QueryParser parser = new QueryParser("field", analyzer);//������ѯ��������ָ����field(������ָcontents��Ŀ¼), analyzer������������
//====================>(2)�����ѯ����<==============================================
string[] strs = new string[] { "title", "contents" };
Lucene.Net.QueryParsers.QueryParser parser = new Lucene.Net.QueryParsers.MultiFieldQueryParser(strs, new StandardAnalyzer());
parser.SetDefaultOperator(Lucene.Net.QueryParsers.QueryParser.OR_OPERATOR);
Query query = parser.Parse(Query_condition);//����һ����ѯ����ָ����ѯ����Query_condition������ this.Query_txt.Text��
//�����
Hits hits = searcher.Search(query);//����hits��������Search������)query���õ����ļ�
if (hits.Length()==0)
{
this.result_TxtBox.Text += "==========������˼����ѯ����������Ĺؼ��֡�^+^===========" + "\n";
}
else{
for (int i = 0; i < hits.Length(); i++)
{
// �õ����е��ĵ�
Document doc = hits.Doc(i);
//string filename = doc.Get("path");//�õ������ļ���������Ŀ¼·��
string result_path = doc.Get("path");//�õ����е��ļ�Ŀ¼��
//string folder = Path.GetDirectoryName(result_path);
string filename = Path.GetFileName(result_path);//�õ������ļ���
//DirectoryInfo di = new DirectoryInfo(folder);
this.result_TxtBox.Text += "======================================================" + "\n";
this.result_TxtBox.Text += "��ѯ������ڵ��ļ�: "+filename + "\n";
//this.result_TxtBox.Text += "��ѯ������ڵ�Ŀ¼: " + di.FullName + "\n";
}
}
//reader.Close();
searcher.Close();
}
/// <summary>
/// 从索引搜索结果
/// </summary>
private TopDocs SearchIndex(string indexdic, string pro, string city, string area, string hy, string adclass, string keyword)
{
PanGu.Segment.Init(PanGuXmlPath);
Dictionary<string, string> dic = new Dictionary<string, string>();
BooleanQuery bQuery = new BooleanQuery();
if (!string.IsNullOrEmpty(pro))
{
//Lucene.Net.Search.Query query = new QueryParser("AdPro", PanGuAnalyzer).Parse(pro);
Lucene.Net.Search.Query query = new TermQuery(new Term("AdPro", pro));
bQuery.Add(query, BooleanClause.Occur.MUST);//其中的MUST、SHOULD、MUST_NOT表示与、或、非
if (!string.IsNullOrEmpty(city) && city != "不限")
{
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdCity", PanGuAnalyzer).Parse(city);
//query = new TermQuery(new Term("AdCity", city));
bQuery.Add(query, BooleanClause.Occur.MUST);
if (!string.IsNullOrEmpty(area) && area != "不限")
{
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdArea", PanGuAnalyzer).Parse(area);
//query = new TermQuery(new Term("AdArea", area));
bQuery.Add(query, BooleanClause.Occur.MUST);
}
}
}
if (!string.IsNullOrEmpty(hy))
{
Lucene.Net.Search.Query query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdHy", PanGuAnalyzer).Parse(hy);
//Lucene.Net.Search.Query query = new TermQuery(new Term("AdHy", hy));
bQuery.Add(query, BooleanClause.Occur.MUST);
}
if (!string.IsNullOrEmpty(adclass) && adclass != "中标商品公告查询")
{
if (adclass == "公开招标" || adclass == "其他")
{
//Lucene.Net.Search.Query query = new QueryParser("AdClass", PanGuAnalyzer).Parse(adclass);
Lucene.Net.Search.Query query = new TermQuery(new Term("AdClass", adclass));
bQuery.Add(query, BooleanClause.Occur.MUST);
}
else
{
BooleanQuery bQueryt = new BooleanQuery();
//Lucene.Net.Search.Query query = new TermQuery(new Term("AdClass", "公开招标"));
//bQuery.Add(query, BooleanClause.Occur.MUST_NOT);
////Lucene.Net.Search.Query query = new QueryParser("AdClass", PanGuAnalyzer).Parse(adclass);
//query = new TermQuery(new Term("AdClass", "其他"));
//bQuery.Add(query, BooleanClause.Occur.MUST_NOT);
Lucene.Net.Search.Query query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("邀请");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
//Lucene.Net.Search.Query query = new QueryParser("AdClass", PanGuAnalyzer).Parse(adclass);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("协议采购");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("单一来源");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("询价采购");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("竞争性谈判");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
bQuery.Add(bQueryt, BooleanClause.Occur.MUST);
}
}
else
{
BooleanQuery bQueryt = new BooleanQuery();
Lucene.Net.Search.Query query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("公开招标");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
//Lucene.Net.Search.Query query = new QueryParser("AdClass", PanGuAnalyzer).Parse(adclass);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("其他");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("邀请");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
//Lucene.Net.Search.Query query = new QueryParser("AdClass", PanGuAnalyzer).Parse(adclass);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("协议采购");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("单一来源");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("询价采购");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
query = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "AdClass", PanGuAnalyzer).Parse("竞争性谈判");
bQueryt.Add(query, BooleanClause.Occur.SHOULD);
bQuery.Add(bQueryt, BooleanClause.Occur.MUST);
}
if (!string.IsNullOrEmpty(keyword))
{
string title = string.Empty;
if ((keyword != null && keyword != ""))
{
title = GetKeyWordsSplitBySpace(keyword);
//QueryParser parse = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_29, new String[] { "Title","Content"}, PanGuAnalyzer);
QueryParser parse = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_29, new String[] { "Title"}, PanGuAnalyzer);
var query = parse.Parse(title);
parse.SetDefaultOperator(QueryParser.Operator.AND);
bQuery.Add(query, BooleanClause.Occur.MUST);
dic.Add("title", keyword);
}
}
//if (bQuery != null && bQuery.GetClauses().Length > 0)
//{
return GetSearchResult(bQuery, dic, indexdic);
//}
//else
//{
// return null;
//}
}
private QueryParser _createQueryParser()
{
string[] searchfields = null;
if (_searchFields.Count == 0)
searchfields = new string[] { "contents" };
else
searchfields = _searchFields.ToArray();
MultiFieldQueryParser parser = new MultiFieldQueryParser(searchfields, _analyzer);
switch (_operator)
{
case DefaultOperator.OR:
parser.SetDefaultOperator(QueryParser.OR_OPERATOR);
break;
case DefaultOperator.AND:
parser.SetDefaultOperator(QueryParser.AND_OPERATOR);
break;
}
return parser;
}
private Result GetSearchResults(string searchQuery, string [] searchFields, string sortField, bool sortDescending, int count, int skip)
{
var reader = GetIndexReader();
var searcher = GetIndexSearcher(reader);
string sortFieldName;
if(string.IsNullOrWhiteSpace(sortField))
{
sortField = sortFieldName = CreatedField;
sortDescending = true;
}
else if(sortField == CreatedField)
{
sortFieldName = CreatedField;
}
else
{
sortFieldName = FieldNameForSorting(sortField);
}
Query query;
if(string.IsNullOrWhiteSpace(searchQuery) == false && searchFields != null && searchFields.Any())
{
searchQuery = searchQuery.Replace("*", "").Replace(" ", "* ") + "*";
var parser = new MultiFieldQueryParser(Version.LUCENE_29, searchFields, GetAnalyzer());
parser.SetDefaultOperator(QueryParser.Operator.AND);
try
{
query = parser.Parse(searchQuery.Trim());
}
catch(ParseException)
{
query = parser.Parse(QueryParser.Escape(searchQuery.Trim()));
}
}
else
{
query = new MatchAllDocsQuery();
}
var docs = searcher.Search(
query,
null, reader.MaxDoc(),
new Sort(new SortField(sortFieldName, SortField.STRING, sortDescending))
);
var scoreDocs = docs.ScoreDocs;
var rows = new List<Row>();
for(var i = skip; i < (skip + count) && i < scoreDocs.Length; i++)
{
if(reader.IsDeleted(scoreDocs[i].doc))
{
continue;
}
var doc = searcher.Doc(scoreDocs[i].doc);
var row = ParseRow(doc);
rows.Add(row);
}
searcher.Close();
reader.Close();
return new Result(scoreDocs.Count(), rows, sortField, sortDescending);
}
/// <summary>
/// �������ڡ��������ķ���
/// </summary>
private void search()
{
DateTime start = DateTime.Now;
//try
//{
// }
//catch (Exception e)
//{
// Response.Write("<script type='text/javascript'>window.alert(' " + e.ToString() + " ');</script>");
//}
// ��������
//�������ڡ�index��Ŀ¼��
string indexDirectory1 = Server.MapPath("./")+"index\\1.5\\";
IndexSearcher searcher1 = new IndexSearcher(indexDirectory1);
string indexDirectory2 = Server.MapPath("./") + "index\\1.4\\";
IndexSearcher searcher2 = new IndexSearcher(indexDirectory2);
//System.String index3 = @"\\192.168.1.130\index\1.5";
//Lucene.Net.Index.IndexReader reader3;
Lucene.Net.Search.ParallelMultiSearcher searcher;
/* if (System.IO.Directory.Exists(index3))//�Ƿ����Ŀ¼
{
reader3 = Lucene.Net.Index.IndexReader.Open(index3);//��ȡ������ȡ����ʵ�����ô�Ϊ������ȡ��reader��ȡ�ļ���Ϊindex���ļ���(Ŀ¼)
IndexSearcher searcher3 = new IndexSearcher(reader3);
searcher = new Lucene.Net.Search.ParallelMultiSearcher(new Lucene.Net.Search.Searchable[] { searcher3,searcher1, searcher2 });
}
else
{
searcher = new Lucene.Net.Search.ParallelMultiSearcher(new Lucene.Net.Search.Searchable[] { searcher1, searcher2 });
}*/
searcher = new Lucene.Net.Search.ParallelMultiSearcher(new Lucene.Net.Search.Searchable[] { searcher1, searcher2 });
//====================>(1)�����ѯ����<==============================================
//System.String field = "text";//���ڱ�����ҳɹ����ļ����ڵ�Ŀ¼
//QueryParser parser = new QueryParser(field, new StandardAnalyzer());//������ѯ��������ָ����field(������ָcontents��Ŀ¼), analyzer������������
//====================>(2)�����ѯ����<==============================================
string[] strs = new string[] { "text", "path","fullpath","keywords","description","title" };
Lucene.Net.QueryParsers.QueryParser parser = new Lucene.Net.QueryParsers.MultiFieldQueryParser(strs, new StandardAnalyzer());
parser.SetDefaultOperator(Lucene.Net.QueryParsers.QueryParser.OR_OPERATOR);
// ���������
this.Results.Columns.Add("link", typeof(string));
this.Results.Columns.Add("title", typeof(string));
this.Results.Columns.Add("sample", typeof(string));
this.Results.Columns.Add("path", typeof(string));
// ����
Query query = parser.Parse(this.Query);//����һ����ѯ����ָ����ѯ����Query_condition������ this.Query_txt.Text��
Hits hits = searcher.Search(query);
this.total = hits.Length();
// ���� �����Ĺؼ���,Ĭ����<b>..</b>
// �����ָ��<read>..</read>
SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<B style='color:Red;'>", "</B>");
Highlighter highlighter = new Highlighter(simpleHTMLFormatter, new QueryScorer(query));
// ���һ�������Ҫ���صģ����������ݳ���
// ���̫С����ֻ�����ݵĿ�ʼ���ֱ��������������ҷ��ص�����Ҳ�� ̫����ʱ̫�˷��ˡ�
highlighter.SetTextFragmenter(new SimpleFragmenter(100));
// initialize startAt
this.startAt = initStartAt();
// ��ʾ�������ġ������Ŀ
int resultsCount = smallerOf(total, this.maxResults + this.startAt);
for (int i = startAt; i < resultsCount; i++)
{
// �õ����е��ĵ�
Document doc = hits.Doc(i);
//��ӽ�β����֤��β������Ų�������
string title = doc.Get("title") + " ";
// �õ��ļ�����
System.String text =Search.CutString( doc.Get("text"),480);
// �õ��ļ�������ȷ·��
string path = doc.Get("path");
string orpath = doc.Get("fullpath");
Lucene.Net.Analysis.TokenStream titkeStream = analyzer.TokenStream("title", new System.IO.StringReader(title));//��Ŀ
Lucene.Net.Analysis.TokenStream tokenStream = analyzer.TokenStream("text", new System.IO.StringReader(text));//ժҪ
Lucene.Net.Analysis.TokenStream pathStream = analyzer.TokenStream("path", new System.IO.StringReader(path));//��ʾ��·��
System.String result = highlighter.GetBestFragments(tokenStream, text, 2, "...");
string tresult = highlighter.GetBestFragments(titkeStream, title, 2, "..");
string pathwords = highlighter.GetBestFragments(pathStream, path, 2, ".."); //·����ʱ��ʾ
// ����һ������ʾ�������Ľ��
DataRow row = this.Results.NewRow();
if (tresult == "")
{
row["title"] = title;
}
else {
row["title"] = tresult;
}
if (getpath(row, System.IO.Path.GetFileName(path.Replace("\\", "/"))))
{
row["link"]=getFullpath( System.IO.Path.GetFileName(doc.Get("path")));
}
else {
row["link"] =orpath;
if (pathwords=="")
{
row["path"] = orpath;
}
else
{
row["path"] = pathwords.Replace("\\", "/");
}
}
if (result == ""){
row["sample"] = text;
}
else {
row["sample"] = result;
}
this.Results.Rows.Add(row);
}
searcher.Close();
// �����Ϣ
this.duration = DateTime.Now - start;
this.fromItem = startAt + 1;
this.toItem = smallerOf(startAt + maxResults, total);
}
