基于WCF框架的分布式事务处理方案

第一：服务契约(ServiceContract)中的配置

　

　ServiceContract(SessionMode = SessionMode.Required)]
    public interface IDistributedTransaction
    {
        [TransactionFlow(TransactionFlowOption.Allowed)]
        [OperationContract]
        void Add();
    }

 

第二：服务契约实现的配置

　　

[OperationBehavior(TransactionAutoComplete = true, TransactionScopeRequired = true)]
        public void Add()
        {
            conn1.Open();
            SqlCommand command = new SqlCommand("insert into test2 values(111)", conn1);
            command.ExecuteNonQuery();
            DataBaseOperation.DisplayTransactioninfo.Display(System.Transactions.Transaction.Current);
        }

 

第三：WebConfig 配置

<service name="ServerConsole.Transaction.DistributedTransactionService1" behaviorConfiguration="metadatabehaviors">

        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8027"/>
            <add baseAddress="net.tcp://localhost:8028"/>
          </baseAddresses>
        </host>
        <endpoint address="DistributedTransactionService1" binding="netTcpBinding" bindingConfiguration="tranbinding"
                   contract="ServerConsole.Transaction.IDistributedTransaction"></endpoint>
      </service>
<bindings>
      <netTcpBinding>
          <binding name="tranbinding" transactionFlow="true" transactionProtocol="WSAtomicTransactionOctober2004">
          <reliableSession enabled="true" ordered="true"/>
        </binding>
      </netTcpBinding>
    </bindings>

 

第四：客户端 使用

 using (TransactionScope transcope = new TransactionScope())
            {
                try
                {
                    Transaction.Current.TransactionCompleted += new TransactionCompletedEventHandler(Current_TransactionCompleted);
                    tranclient.Add();
                    tranclient2.Add();
                    transcope.Complete();
                }
                catch (Exception err) { Transaction.Current.Rollback(); }
            }
 
static void Current_TransactionCompleted(object sender, TransactionEventArgs e)
        {
            if (e.Transaction.TransactionInformation.Status ==
                System.Transactions.TransactionStatus.Committed)
                Console.WriteLine(e.Transaction.TransactionInformation.DistributedIdentifier);
        }

客户端使用TransactionScope类来进行环境事务的设置，这样就很方便知道事务的执行范围，在TransactionScope里面我们可以通过Transaction.Current获取到当前上下文的事务对象，由于事务对象是存储在线程独立存储区里的，所以跨线程访问是没用的，通过依赖事务进行传递。

参考：http://www.cnblogs.com/wangiqngpei557/archive/2011/12/22/2298500.html#