- 优化 fsql.Transaction 线程事务；

Examples/base_entity/Program.cs

@@ -138,6 +138,15 @@ namespace base_entity
             BaseEntity.Initialization(fsql, () => _asyncUow.Value);
             #endregion
 
+            for (var a = 0; a < 1000; a++)
+            {
+                fsql.Transaction(() =>
+                {
+                    var tran = fsql.Ado.TransactionCurrentThread;
+                    tran.Rollback();
+                });
+            }
+
             fsql.UseJsonMap();
             var bid1 = 10;
             var list1 = fsql.Select<A>()

FreeSql/Internal/CommonProvider/AdoProvider/AdoProviderTransaction.cs

@@ -74,17 +74,20 @@ namespace FreeSql.Internal.CommonProvider
         }
         private void CommitTransaction(bool isCommit, Transaction2 tran, Exception rollbackException, string remark = null)
         {
-            if (tran == null || tran.Transaction == null || tran.Transaction.Connection == null) return;
+            if (tran == null || tran.Transaction == null || tran.Connection == null) return;
             _trans.TryRemove(tran.Connection.LastGetThreadId, out var oldtran);
 
             Exception ex = null;
             if (string.IsNullOrEmpty(remark)) remark = isCommit ? "提交" : "回滚";
             try
+            {
+                if (tran.Transaction.Connection != null) //用户自行 Commit、Rollback
                 {
                     Trace.WriteLine($"线程{tran.Connection.LastGetThreadId}事务{remark}");
                     if (isCommit) tran.Transaction.Commit();
                     else tran.Transaction.Rollback();
                 }
+            }
             catch (Exception ex2)
             {
                 ex = ex2;