c# - 如何在 lucene.net 中使用函数 SynonymAnalyzer

Question

我在我的应用程序中使用了 Lucene.Net.SynonymEngine.dll 作为引用

我在使用 synonymAnalyzer、ISynonymEngine 等函数时遇到问题

我试过用

SynonymAnalyzer syn = new SynonymAnalyzer(ISynonymEngine 引擎);和

Analyzer a =new SynonymAnalyzer(ISynonymEngine 引擎);

但似乎都不起作用，有人可以帮忙吗？提前谢谢你...

Answer 1

public class SynonymAnalyzer : Analyzer
{
    public ISynonymEngine SynonymEngine { get; private set; }

    public SynonymAnalyzer(ISynonymEngine engine)
    {
        SynonymEngine = engine;
    }

    public override TokenStream TokenStream
    (string fieldName, System.IO.TextReader reader)
    {
        //create the tokenizer
        TokenStream result = new StandardTokenizer(reader);

        //add in filters
        // first normalize the StandardTokenizer
        result = new StandardFilter(result); 

        // makes sure everything is lower case
        result = new LowerCaseFilter(result);

        // use the default list of Stop Words, provided by the StopAnalyzer class.
        result = new StopFilter(result, StopAnalyzer.ENGLISH_STOP_WORDS); 

        // injects the synonyms. 
        result = new SynonymFilter(result, SynonymEngine); 

        //return the built token stream.
        return result;
    }
}