WCF开发工具功能特点比较突出,其优势突出的功能为它在开发领域中占据着一个比较重要的地位。在这里我们将会通过对WCF事务演示的解读,来充分的了解一下这一开发平台的应用方式。
下面的这段代码就是WCF事务演示的经典示例:
- // -------- Service1 -----------------
- [ServiceContract]
- public interface IService1
- {
- [OperationContract]
- [TransactionFlow(TransactionFlowOption.Allowed)]
- void Test();
- }
- public class MyService1 : IService1
- {
- [OperationBehavior(TransactionScopeRequired=true)]
- public void Test()
- {
- string connStr = "server=(local);uid=sa;pwd=sa;database=temp";
- using (SqlConnection conn = new SqlConnection(connStr))
- {
- conn.Open();
- SqlCommand cmd = new SqlCommand("insert into [User]
([name]) values (@name)",- conn);
- cmd.Parameters.Add(new SqlParameter("@name", "ZhangSan"));
- cmd.ExecuteNonQuery();
- }
- }
- }
- // -------- Service2 -----------------
- [ServiceContract]
- public interface IService2
- {
- [OperationContract]
- [TransactionFlow(TransactionFlowOption.Allowed)]
- void Test();
- }
- public class MyService2 : IService2
- {
- [OperationBehavior(TransactionScopeRequired = true)]
- public void Test()
- {
- string connStr = "server=(local);uid=sa;pwd=sa;database=temp";
- using (SqlConnection conn = new SqlConnection(connStr))
- {
- conn.Open();
- SqlCommand cmd = new SqlCommand("insert into Account
([user], [money]) values (@user, @money)",- conn);
- cmd.Parameters.Add(new SqlParameter("@user", "ZhangSan"));
- cmd.Parameters.Add(new SqlParameter("@money", 100));
- cmd.ExecuteNonQuery();
- }
- }
- }
- public class WcfTest
- {
- public static void Test()
- {
- // -------- Host -----------------
- AppDomain.CreateDomain("Server").DoCallBack(delegate
- {
- NetTcpBinding bindingServer = new NetTcpBinding();
- bindingServer.TransactionFlow = true;
- ServiceHost host1 = new ServiceHost(typeof(MyService1),
new Uri("net.tcp://localhost:8080"));- host1.AddServiceEndpoint(typeof(IService1), bindingServer, "");
- host1.Open();
- ServiceHost host2 = new ServiceHost(typeof(MyService2),
new Uri("net.tcp://localhost:8081"));- host2.AddServiceEndpoint(typeof(IService2), bindingServer, "");
- host2.Open();
- });
- // -------- Client -----------------
- NetTcpBinding bindingClient = new NetTcpBinding();
- bindingClient.TransactionFlow = true;
- IService1 client1 = ChannelFactory<IService1>.CreateChannel
(bindingClient,- new EndpointAddress("net.tcp://localhost:8080"));
- IService2 client2 = ChannelFactory<IService2>.CreateChannel
(bindingClient,- new EndpointAddress("net.tcp://localhost:8081"));
- using (TransactionScope scope = new TransactionScope())
- {
- try
- {
- client1.Test();
- client2.Test();
- scope.Complete();
- }
- finally
- {
- (client1 as IDisposable).Dispose();
- (client2 as IDisposable).Dispose();
- }
- }
- }
- }
以上就是我们为大家带来的WCF事务演示。
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