创建索引已经生成了索引文件。搜索就不成了。     
代码：
         
            FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexPath), new NoLockFactory());
            IndexReader reader = IndexReader.Open(directory, true);
            IndexSearcher searcher = new IndexSearcher(reader);

   
      TopScoreDocCollector collector = TopScoreDocCollector.create(1000, true);
       searcher.Search(query, null, collector);
       ScoreDoc[] docs = collector.TopDocs(0, collector.GetTotalHits()).scoreDocs;//这里是空的，没有搜索出来

创建索引已经生成了索引文件。搜索就不成了。     
代码：
         
            FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexPath), new NoLockFactory());
            IndexReader reader = IndexReader.Open(directory, true);
            IndexSearcher searcher = new IndexSearcher(reader);

   
      TopScoreDocCollector collector = TopScoreDocCollector.create(1000, true);
       searcher.Search(query, null, collector);
       ScoreDoc[] docs = collector.TopDocs(0, collector.GetTotalHits()).scoreDocs;//这里是空的，没有搜索出来