AyongToolsLibrary/IndexQuery.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
using System.Data;

//全文索引所需引入的命名空间
using Lucene.Net.Index;
using Lucene.Net.Documents;
using Lucene.Net.Analysis.Standard;
using Lucene.Net.Search;
using Lucene.Net.QueryParsers;
using Lucene.Net.Analysis;
using Lucene.Net.Analysis.PanGu;

namespace ATL.Search
{
    public class IndexQuery
    {
        //索引存放路径
        private string _path;

        public string Path
        {
            get { return _path; }
            set { _path = value; }
        }

        

        //分词
        string GetKerWords(string kw,PanGuTokenizer token)
        {

            StringBuilder result = new StringBuilder();

            ICollection<PanGu.WordInfo> words = token.SegmentToWordInfos(kw);

            foreach (PanGu.WordInfo word in words)
            {
                if (word == null)
                {
                    continue;
                }

                result.AppendFormat("{0}^{1}.0 ", word.Word, (int)Math.Pow(3, word.Rank));
            }

            return result.ToString().Trim();
        }
        //搜索并返回DataTable
        public int Search(string kw)
        {
            string keywords = kw;

            IndexSearcher search = new IndexSearcher(Path);
            //分词
            kw = GetKerWords(kw, new PanGuTokenizer());
            //Query构造器
            QueryParser titleQueryParser = new QueryParser("title",new PanGuAnalyzer(true));