C#轻量级企业事务 - TransactionScope

 using System;
 using System.Data.SqlClient;
 using System.Transactions;

 namespace SomeDBTransaction
 {
     class Program
     {
         static void Main(string[] args)
         {
             string con1 = "SERVER=.; DATABASE=db1; UID=sa; PWD=llh";
             string con2 = "SERVER=.; DATABASE=db2; UID=sa; PWD=llh";
             string sqlStr1 = "U_t1";
             string sqlStr2 = "U_t1";

             int resu=CreateTransactionScope(con1, con2, sqlStr1, sqlStr2);
             Console.WriteLine("受影响的行数："+resu);

             Console.Read();
         }

         // This function takes arguments for 2 connection strings and commands to create a transaction
         // involving two SQL Servers. It returns a value > 0 if the transaction is committed, 0 if the
         // transaction is rolled back. To test this code, you can connect to two different databases
         // on the same server by altering the connection string, or to another 3rd party RDBMS by
         // altering the code in the connection2 code block.
         static public int CreateTransactionScope(
             string connectString1, string connectString2,
             string commandText1, string commandText2)
         {
             // Initialize the return value to zero and create a StringWriter to display results.
             int returnValue = ;
             System.IO.StringWriter writer = new System.IO.StringWriter();

             try
             {
                 // Create the TransactionScope to execute the commands, guaranteeing
                 // that both commands can commit or roll back as a single unit of work.
                 using (TransactionScope scope = new TransactionScope())
                 {
                     using (SqlConnection connection1 = new SqlConnection(connectString1))
                     {
                         // Opening the connection automatically enlists it in the
                         // TransactionScope as a lightweight transaction.
                         connection1.Open();

                         // Create the SqlCommand object and execute the first command.
                         SqlCommand command1 = new SqlCommand(commandText1, connection1);
                         command1.CommandType = System.Data.CommandType.StoredProcedure;
                         returnValue = command1.ExecuteNonQuery();
                         writer.WriteLine("Rows to be affected by command1: {0}", returnValue);

                         // If you get here, this means that command1 succeeded. By nesting
                         // the using block for connection2 inside that of connection1, you
                         // conserve server and network resources as connection2 is opened
                         // only when there is a chance that the transaction can commit.
                         using (SqlConnection connection2 = new SqlConnection(connectString2))
                         {
                             // The transaction is escalated to a full distributed
                             // transaction when connection2 is opened.
                             connection2.Open();

                             // Execute the second command in the second database.
                             returnValue = ;
                             SqlCommand command2 = new SqlCommand(commandText2, connection2);
                             command1.CommandType = System.Data.CommandType.StoredProcedure;
                             returnValue = command2.ExecuteNonQuery();
                             writer.WriteLine("Rows to be affected by command2: {0}", returnValue);
                         }
                     }

                     // The Complete method commits the transaction. If an exception has been thrown,
                     // Complete is not  called and the transaction is rolled back.
                     scope.Complete();

                 }

             }
             catch (TransactionAbortedException ex)
             {
                 writer.WriteLine("TransactionAbortedException Message: {0}", ex.Message);
             }
             catch (ApplicationException ex)
             {
                 writer.WriteLine("ApplicationException Message: {0}", ex.Message);
             }
             catch (Exception ex)
             {
                 writer.WriteLine("ERROR: {0}",ex.Message);
             }
             // Display messages.
             Console.WriteLine(writer.ToString());

             return returnValue;
         }
     }

 }

CODE

代码很简单啦 ~~，就多加了一个using而已