public static List <TNews> Search(String indexDir, String q, int pageLen, int pageNo, out int recCount)
{
string keywords = q;
IndexSearcher search = new IndexSearcher(indexDir);
q = GetKeyWordsSplitBySpace(q, new PanGuTokenizer());
QueryParser queryParser = new QueryParser("contents", new PanGuAnalyzer(true));
Query query = queryParser.Parse(q);
Hits hits = search.Search(query);
List <TNews> result = new List <TNews>();
recCount = hits.Length();
int i = (pageNo - 1) * pageLen;
while (i < recCount && result.Count < pageLen)
{
TNews news = null;
try
{
news = new TNews();
news.Title = hits.Doc(i).Get("title");
news.Content = hits.Doc(i).Get("contents");
news.Url = hits.Doc(i).Get("url");
String strTime = hits.Doc(i).Get("time");
news.Time = DateTime.ParseExact(strTime, "yyyyMMdd", null);
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter =
new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
PanGu.HighLight.Highlighter highlighter =
new PanGu.HighLight.Highlighter(simpleHTMLFormatter,
new Segment());
highlighter.FragmentSize = 50;
news.Abstract = highlighter.GetBestFragment(keywords, news.Content);
//// 高亮显示设置
////TermQuery tQuery = new TermQuery(new Term("contents", q));
//SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<font color=\"red\">", "</font>");
//Highlighter highlighter = new Highlighter(simpleHTMLFormatter, new QueryScorer(query));
////关键内容显示大小设置
//highlighter.SetTextFragmenter(new SimpleFragmenter(50));
////取出高亮显示内容
//Lucene.Net.Analysis.KTDictSeg.KTDictSegAnalyzer analyzer = new Lucene.Net.Analysis.KTDictSeg.KTDictSegAnalyzer();
//TokenStream tokenStream = analyzer.TokenStream("contents", new StringReader(news.Content));
//news.Abstract = highlighter.GetBestFragment(tokenStream, news.Content);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
result.Add(news);
i++;
}
}
search.Close();
return(result);
}
public static List<TNews> Search(String indexDir, String q, int pageLen, int pageNo, out int recCount)
{
string keywords = q;
IndexSearcher search = new IndexSearcher(indexDir);
q = GetKeyWordsSplitBySpace(q, new PanGuTokenizer());
QueryParser queryParser = new QueryParser("contents", new PanGuAnalyzer(true));
Query query = queryParser.Parse(q);
Hits hits = search.Search(query);
List<TNews> result = new List<TNews>();
recCount = hits.Length();
int i = (pageNo - 1) * pageLen;
while (i < recCount && result.Count < pageLen)
{
TNews news = null;
try
{
news = new TNews();
news.Title = hits.Doc(i).Get("title");
news.Content = hits.Doc(i).Get("contents");
news.Url = hits.Doc(i).Get("url");
String strTime = hits.Doc(i).Get("time");
news.Time = DateTime.ParseExact(strTime, "yyyyMMdd", null);
PanGu.HighLight.SimpleHTMLFormatter simpleHTMLFormatter =
new PanGu.HighLight.SimpleHTMLFormatter("<font color=\"red\">", "</font>");
PanGu.HighLight.Highlighter highlighter =
new PanGu.HighLight.Highlighter(simpleHTMLFormatter,
new Segment());
highlighter.FragmentSize = 50;
news.Abstract = highlighter.GetBestFragment(keywords, news.Content);
//// ������ʾ����
////TermQuery tQuery = new TermQuery(new Term("contents", q));
//SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<font color=\"red\">", "</font>");
//Highlighter highlighter = new Highlighter(simpleHTMLFormatter, new QueryScorer(query));
////�ؼ�������ʾ��С����
//highlighter.SetTextFragmenter(new SimpleFragmenter(50));
////ȡ��������ʾ����
//Lucene.Net.Analysis.KTDictSeg.KTDictSegAnalyzer analyzer = new Lucene.Net.Analysis.KTDictSeg.KTDictSegAnalyzer();
//TokenStream tokenStream = analyzer.TokenStream("contents", new StringReader(news.Content));
//news.Abstract = highlighter.GetBestFragment(tokenStream, news.Content);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
result.Add(news);
i++;
}
}
search.Close();
return result;
}
