當麻許的超技八

Stopwatch sw = new Stopwatch();

// 讀取所有資料

var di = new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory + "\\Source\\");

sw.Start();

var allObjects = di.GetFiles().Select(

    x => JObject.Parse((File.ReadAllText(x.FullName)))).ToArray();

//Index 存放路徑

string indexPath = AppDomain.CurrentDomain.BaseDirectory + "\\Index1\\";

FSDirectory dir = FSDirectory.Open(new DirectoryInfo(indexPath));

//IndexWriter

//使用盤古分詞

var analyzer = new Lucene.Net.Analysis.PanGu.PanGuAnalyzer();

IndexWriter indexWriter = new IndexWriter(dir, analyzer, IndexWriter.MaxFieldLength.UNLIMITED);

indexWriter.DeleteAll();

// 還原且加入需做 index 的欄位

foreach (JObject ds in allObjects)

{

    Document doc = new Document();

    // 把每一個欄位都建立索引

    Field f_Id = new Field("Id", ds["Id"].ToString(), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.NO);

    Field f_Age = new Field("Age", ds["Age"].ToString(), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.NO);

    Field f_Memo = new Field("Memo", ds["Memo"].ToString(), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.NO);

    Field f_BirthDay = new Field("BirthDay", DateTime.Parse(ds["Birthday"].ToString()).ToString("yyyyMMdd"), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.NO);

    doc.Add(f_Id); doc.Add(f_Age); doc.Add(f_Memo); doc.Add(f_BirthDay);

    indexWriter.AddDocument(doc);

}

indexWriter.Optimize();

indexWriter.Commit();

indexWriter.Close();

sw.Stop();

Response.Write("建立" + allObjects.Length + "筆索引花費時間: " + sw.Elapsed + "");