Lucene.Net 的添加、刪除、最佳化索引

添加

protected void InsertDoc(Index obj, float f)
        {
            Document doc = BindToDocument(obj);

            //設定Boost值
            if (f > 0.0000f) { doc.SetBoost(f); }

            lock (objLock)
            {
                IndexWriter writer = null;
                try
                {
                    Directory dir = FSDirectory.GetDirectory(IndexDir(), false);
                    writer = new IndexWriter(dir, GetAnalyzer(), false);

                    writer.AddDocument(doc);
                }
                catch (Exception ex)
                {
                    ErrorHandle(ex);
                }
                finally
                {
                    if (writer != null)
                        writer.Close();
                }
            }
        }

刪除

        protected void DeleteDoc(Term t)
        {
            lock (objLock)
            {
                IndexModifier modifier = null;
                try
                {
                    Directory dir = FSDirectory.GetDirectory(IndexDir(), false);
                    modifier = new IndexModifier(dir, GetAnalyzer(), false);

                    modifier.DeleteDocuments(t);
                }
                catch (Exception ex)
                {
                    ErrorHandle(ex);
                }
                finally
                {
                    if (modifier != null)
                        modifier.Close();
                }
            }
        }

最佳化

        public void OptimizeIndex()
        {
            lock (objLock)
            {
                Directory dir = FSDirectory.GetDirectory(IndexDir(), false);
                IndexWriter writer = new IndexWriter(dir, GetAnalyzer(), false);

                try
                {
                    writer.Optimize();
                }
                catch (Exception ex)
                {
                    ErrorHandle(ex);
                }
                finally
                {
                    writer.Close();
                }
            }
        }