chore: 首次簽入 Thinkyu ASP.NET 專案

- 加入 Visual Studio / ASP.NET .gitignore - 排除建置輸出、IDE 設定、NuGet packages、大型 MSI 安裝檔
2026-09-10 09:42:37 +08:00
commit 577060bc78
2496 changed files with 501389 additions and 0 deletions
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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Collections;
+using System.Timers;
+using System.IO;
+
+namespace Wellan.Service
+{
+  /// <summary>
+  /// 檔案定時清除服務
+  /// </summary>
+  public class WDeleteFileService
+  {
+    private WDeleteFileService()
+    {
+      _deleteFilePatterns = new List<string>();
+      _timer = new Timer();
+      _timer.Enabled = false;
+      _timer.Elapsed += new ElapsedEventHandler(DoDeleteFile);
+    }
+
+    public static WDeleteFileService GetInstance()
+    {
+      if (_instance == null)
+        _instance = new WDeleteFileService();
+      return _instance;
+    }
+
+    /// <summary>
+    /// 檔案刪除間隔時間，單位為秒。預設值為 600 秒
+    /// </summary>
+    public int Interval
+    {
+      get
+      {
+        return _interval;
+      }
+      set
+      {
+        _interval = value;
+      }
+    }
+
+    /// <summary>
+    /// 要刪除多久之前的檔案，單位為秒。預設值為 600 秒
+    /// </summary>
+    public int FileAgeToDelete
+    {
+      get
+      {
+        return Convert.ToInt32(_fileAge.TotalSeconds);
+      }
+      set
+      {
+        _fileAge = new TimeSpan(value * TimeSpan.TicksPerSecond);
+      }
+    }
+
+    /// <summary>
+    /// 設定或取得檔案定時清除服務是否啟動
+    /// </summary>
+    public bool Enabled
+    {
+      get
+      {
+        return _enabled;
+      }
+      set
+      {
+        if (value)
+        {
+          if (_enabled)
+            return;
+
+          _timer.Interval = _interval * 1000;
+          _timer.AutoReset = true;
+          _timer.Enabled = true;
+          _enabled = true;
+        }
+        else
+        {
+          if (!_enabled)
+            return;
+
+          _enabled = false;
+          _timer.Enabled = false;
+        }
+      }
+    }
+
+    /// <summary>
+    /// <para>欲清除的檔案路徑及檔案名稱，檔案名稱可以使用萬用字元</para>
+    /// <para>需要多個檔案路徑及檔案名稱時，請將所需的檔案路徑及檔案名稱一一加入</para>
+    /// <para>例如：c:\temp\*.mdb 表示要清除 c:\temp 目錄下的 *.mdb</para>
+    /// </summary>
+    public List<string> DeletePatterns
+    {
+      get
+      {
+        return _deleteFilePatterns;
+      }
+    }
+
+    /// <summary>
+    /// 實際執行刪除的動作
+    /// </summary>
+    private void DoDeleteFile(object sender, ElapsedEventArgs e)
+    {
+      if (!_enabled)
+      {
+        _timer.Enabled = false;
+        return;
+      }
+
+      _timer.Enabled = false;
+      try
+      {
+        foreach (string pattern in _deleteFilePatterns)
+        {
+          string namepart = Path.GetFileName(pattern);
+          string pathPart = pattern.Substring(0, pattern.Length - namepart.Length);
+          try
+          {
+            DirectoryInfo dirInfo = new DirectoryInfo(pathPart);
+            FileInfo[] matchFiles = dirInfo.GetFiles(namepart);
+            foreach (FileInfo file in matchFiles)
+            {
+              try
+              {
+                if (DateTime.Now - file.LastWriteTime > _fileAge)
+                  file.Delete();
+              }
+              catch
+              {
+                // do nothing
+              }
+            }
+          }
+          catch
+          {
+            // do nothing
+          }
+        }
+      }
+      finally
+      {
+        _timer.Enabled = true;
+      }
+    }
+
+    private static WDeleteFileService _instance = null;
+    private List<string> _deleteFilePatterns = null;
+    private Timer _timer = null;
+    private int _interval = 600;
+    private TimeSpan _fileAge = new TimeSpan(TimeSpan.TicksPerSecond * 600);
+    private bool _enabled = false;
+
+    #region UNIT TEST
+    public static void Main()
+    {
+      WDeleteFileService delSrv = WDeleteFileService.GetInstance();
+      delSrv.DeletePatterns.Add(@"c:\temp\*.*");
+      delSrv.Interval = 5;
+      delSrv.FileAgeToDelete = 1;
+      delSrv.Enabled = true;
+      Console.WriteLine("Press ENTER to end program");
+      Console.ReadLine();
+      delSrv.Enabled = false;
+    }
+    #endregion
+  }
+}