public override TokenStream TokenStream(string fieldName, TextReader reader)
{
var seg = new JiebaSegmenter();
TokenStream result = new JiebaTokenizer(seg, reader);
// This filter is necessary, because the parser converts the queries to lower case.
result = new LowerCaseFilter(result);
result = new StopFilter(true, result, StopWords);
return result;
}
protected string GetKeyWordsSplitBySpace(string keywords) {
StringBuilder result = new StringBuilder();
var tokenizer = new JiebaTokenizer(new JiebaSegmenter(), keywords);
var words = tokenizer.Tokenize(keywords);
foreach (var word in words) {
if (string.IsNullOrWhiteSpace(word.Word)) {
continue;
}
result.AppendFormat("{0} ", word.Word);
}
string kwords = result.ToString().Trim();
//var terms = kwords.Trim().Replace("-", " ").Split(' ')
// .Where(x => !string.IsNullOrEmpty(x)).Select(x => x.Trim());
//匹配
var terms = kwords.Trim().Replace("-", " ").Split(' ')
.Where(x => !string.IsNullOrEmpty(x)).Select(x => x.Trim() + "*");
return string.Join(" ", terms);
}