Question

我使用RamDirectory实现了搜索。该目录只填写一次，并从那里开始只读。

有时我得到错误我无法解释（见下文）。大多数时候他们说查询无法解析，但查询 venlo OR venlo * 看起来不错。

我也不理解Encountered " <TERM> "marburg "的含义，因为marburg是索引中的值，但它不是查询的一部分......

 Lucene.Net.QueryParsers.ParseException: Cannot parse 'venlo OR
 venlo\*': Encountered " <TERM> "marburg "" at line 1, column 0. Was
 expecting one of: <NOT> ... "+" ... "-" ... "(" ... "*" ... <QUOTED>
 ... <TERM> ... <PREFIXTERM> ...

此处解析nice~

时发生过一次异常

System.ArgumentOutOfRangeException: Length cannot be less than zero.
     Parameter name: length
     at System.String.CtorCharArrayStartLength(Char[] value, Int32 startIndex, Int32 length)
     at Lucene.Net.QueryParsers.FastCharStream.get_Image() in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\FastCharStream.cs:line 107
     at Lucene.Net.QueryParsers.QueryParserTokenManager.JjFillToken() in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\QueryParserTokenManager.cs:line 1313
     at Lucene.Net.QueryParsers.QueryParserTokenManager.GetNextToken() in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\QueryParserTokenManager.cs:line 1388
     at Lucene.Net.QueryParsers.QueryParser.Jj_ntk() in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\QueryParser.cs:line 1929
     at Lucene.Net.QueryParsers.QueryParser.Modifiers() in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\QueryParser.cs:line 1248
     at Lucene.Net.QueryParsers.QueryParser.Query(String field) in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\QueryParser.cs:line 1300
     at Lucene.Net.QueryParsers.QueryParser.Parse(String query) in d:\Lucene.Net\FullRepo\trunk\src\core\QueryParser\QueryParser.cs:line 224
     at SR.BusPortal.Graph.Lucene.Cities.LuceneCityReader.ParseQuery(String searchQuery)

我的代码看起来像这样

 private static Query ParseQuery(string searchQuery, Analyzer analyzer)
 {
    var parser = new MultiFieldQueryParser(global::Lucene.Net.Util.Version.LUCENE_30, new[] { "SimpleName", "SimpleNativeName" }, analyzer)
    {
        FuzzyMinSim = 0.3f,
        AllowLeadingWildcard = false,
        MultiTermRewriteMethod = MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE
    };

    Query query;

    try
    {
        query = parser.Parse(searchQuery.Trim());
    }
    catch (Exception)
    {
        query = parser.Parse(QueryParser.Escape(searchQuery.Trim()));
    }
    return query;
}

作为输入，该方法获得 venlo或venlo * 和SimpleAnalyzer

Lucene.net 3.0.3意外的ParseException

0 个答案: