分布式事务TransactionScope

分布式事务TransactionScope

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();

                }

            }

        }

    }

}