分布式事务TransactionScope小结

以下是分布式事务的所有情况的例子了，包含了事务套事务，事务套存储过程事务，经过测试，TransactionScope对于分布式事务的各种情况支持的很好。 

使用分布式事务注意如下几点：

1 ：确保参与事务的machine开启了分布式事务支持；

2 ：如果machine开启了防火墙，需要设置msdtc进程为例外；

3 ：参与事务的machine不能跨域（如果跨域，目前微软还没有确切的解决方案）；

4 ：多数据库时才使用分布式事务，如果是同一个数据库，最好使用SqlTransaction.


using  System;

using  System.Collections.Generic;

using  System.Linq;

using  System.Text;

using  System.Data;

using  System.Data.SqlClient;

using  System.Transactions; 

namespace  ConsoleApplication16

{

     class  Program

    {

         static   void  Main( string [] args)

        {

            TestTransaction test  =   new  TestTransaction();

 

            test.Test1();

            test.Test2();

            test.Test3();

            Console.ReadLine();

        }

    }

 

     public   class  TestTransaction

    {        

         public   void  Test1()

        {

             using  (TransactionScope scope  =   new  TransactionScope(TransactionScopeOption.Required))

            {

                ExecuteQuery1( " insert into user1 (username) values ('user1') " );

                ExecuteQuery1( " insert into user2 (username) values ('user2') " );

                ExecuteQuery2( " insert into user1 (username) values ('user1') " );

                ExecuteQuery2( " insert into user2 (username) values ('user2') " );

                scope.Complete();

            }

        }

 

         public   void  Test2()

        {

             using  (TransactionScope scope  =   new  TransactionScope(TransactionScopeOption.Required))

            {

                ExecuteQuery1( @" begin tran insert into user2 (username) values ('tran1') insert into user2 (username) values ('tran2') commit tran " );

                ExecuteQuery2( @" begin tran insert into user2 (username) values ('tran1') insert into user2 (username) values ('tran2') commit tran " );

                scope.Complete();

            }

        }

 

         public   void  Test3()

        {

             using  (TransactionScope scope  =   new  TransactionScope(TransactionScopeOption.Required))

            {

                Test1();

                Test2();

                scope.Complete();

            }

        }

 

         private   void  ExecuteQuery1( string  query)

        {

             string  connectionString  =   " Data Source=wrf;Initial Catalog=test1;Integrated Security=True; " ;

             using  (SqlConnection con  =   new  SqlConnection(connectionString))

            {

                 using  (SqlCommand com  =   new  SqlCommand(query, con))

                {

                    con.Open();

                    com.ExecuteNonQuery();

                }

            }

        }


         private   void  ExecuteQuery2( string  query)

        {

             string  connectionString  =   " Data Source=192.168.1.113;Initial Catalog=test1;Persist Security Info=True;User ID=sa;Password=123; " ;

             using  (SqlConnection con  =   new  SqlConnection(connectionString))

            {

                 using  (SqlCommand com  =   new  SqlCommand(query, con))

                {

                    con.Open();

                    com.ExecuteNonQuery();

                }

            }

        }

    }

}