Revert "优化 DbConfigProvider 的并发处理"

This reverts commit 8d07a8cf79.

XCode/Configuration/DbConfigProvider.cs

@@ -26,9 +26,6 @@ public class DbConfigProvider : ConfigProvider
     public Int32 Period { get; set; } = 15;
 
     private IDictionary<String, Object?>? _cache;
-
-    /// <summary>保存操作锁，防止与定时刷新冲突</summary>
-    private readonly Object _saveLock = new();
     #endregion
 
     #region 方法
@@ -218,27 +215,14 @@ public class DbConfigProvider : ConfigProvider
     /// <summary>保存配置树到数据源</summary>
     public override Boolean SaveAll()
     {
-        lock (_saveLock)
-        {
-            XTrace.WriteLine("[{0}/{1}]开始保存配置", Category, UserId);
-
         var list = Parameter.FindAllByUserID(UserId, Category);
         Save(list, Root, null);
 
-            // 重新加载配置以更新缓存，避免被DoRefresh覆盖
-            var dic = GetAll();
-            if (dic != null)
-            {
-                SaveCache(dic);
-                XTrace.WriteLine("[{0}/{1}]配置保存完成，已更新缓存", Category, UserId);
-            }
-
         // 通知绑定对象，配置数据有改变
         NotifyChange();
 
         return true;
     }
-    }
 
     void Save(IList<Parameter> list, IConfigSection root, String? prefix)
     {
@@ -269,9 +253,6 @@ public class DbConfigProvider : ConfigProvider
                 pi.Save();
             }
         }
-
-        // 确保所有数据库操作完成，避免事务延迟导致的读取不一致
-        Thread.Sleep(10);
     }
     #endregion
 
@@ -308,15 +289,6 @@ public class DbConfigProvider : ConfigProvider
     /// <summary>定时刷新配置</summary>
     /// <param name="state"></param>
     protected void DoRefresh(Object state)
-    {
-        // 使用TryEnter避免在保存操作期间阻塞
-        if (!Monitor.TryEnter(_saveLock, 100))
-        {
-            // 如果无法获取锁，说明正在保存，跳过本次刷新
-            return;
-        }
-
-        try
     {
         using var showSql = Parameter.Meta.Session.Dal.Session.SetShowSql(false);
 
@@ -339,7 +311,7 @@ public class DbConfigProvider : ConfigProvider
 
         if (changed.Count > 0)
         {
-                XTrace.WriteLine("[{0}/{1}]定时检测到配置改变，重新加载如下键：{2}", Category, UserId, changed.ToJson());
+            XTrace.WriteLine("[{0}/{1}]配置改变，重新加载如下键：{2}", Category, UserId, changed.ToJson());
 
             Root = Build(dic);
 
@@ -349,10 +321,5 @@ public class DbConfigProvider : ConfigProvider
             NotifyChange();
         }
     }
-        finally
-        {
-            Monitor.Exit(_saveLock);
-        }
-    }
     #endregion
 }