if not user opend transaction, cap will auto commit transaction.

src/DotNetCore.CAP.SqlServer/CapPublisher.cs

@@ -15,7 +15,10 @@ namespace DotNetCore.CAP.SqlServer
         private readonly SqlServerOptions _options;
         private readonly DbContext _dbContext;
 
+        protected bool IsCapOpenedTrans { get; set; }
+
         protected bool IsUsingEF { get; }
+
         protected IServiceProvider ServiceProvider { get; }
 
         public CapPublisher(IServiceProvider provider, SqlServerOptions options)
@@ -56,6 +59,7 @@ namespace DotNetCore.CAP.SqlServer
             if (dbConnection == null) throw new ArgumentNullException(nameof(dbConnection));
 
             var dbTransaction = dbConnection.BeginTransaction(IsolationLevel.ReadCommitted);
+            IsCapOpenedTrans = true;
             return PublishWithTrans(name, content, dbConnection, dbTransaction);
         }
 
@@ -73,12 +77,13 @@ namespace DotNetCore.CAP.SqlServer
         {
             var connection = _dbContext.Database.GetDbConnection();
             var transaction = _dbContext.Database.CurrentTransaction;
+            IsCapOpenedTrans = transaction == null;
             transaction = transaction ?? await _dbContext.Database.BeginTransactionAsync(IsolationLevel.ReadCommitted);
             var dbTransaction = transaction.GetDbTransaction();
             await PublishWithTrans(name, content, connection, dbTransaction);
         }
 
-        private async Task PublishWithTrans(string name, string content, IDbConnection dbConnection, IDbTransaction dbTransaction)
+        protected virtual async Task PublishWithTrans(string name, string content, IDbConnection dbConnection, IDbTransaction dbTransaction)
         {
             var message = new CapPublishedMessage
             {
@@ -89,7 +94,11 @@ namespace DotNetCore.CAP.SqlServer
 
             var sql = $"INSERT INTO {_options.Schema}.[Published] ([Name],[Content],[Retries],[Added],[ExpiresAt],[StatusName])VALUES(@Name,@Content,@Retries,@Added,@ExpiresAt,@StatusName)";
             await dbConnection.ExecuteAsync(sql, message, transaction: dbTransaction);
-
+            if (IsCapOpenedTrans)
+            {
+                dbTransaction.Commit();
+                dbConnection.Dispose();
+            }
             PublishQueuer.PulseEvent.Set();
         }
     }