[OperationContract]
[TransactionFlow(TransactionFlowOption.Allowed)]
bool AddTeacher(TeacherViewModel vmTeacher);

? ? ??在教師服務端的B層實現上加上WCF分布式事務特性：

 /// <summary>
        /// 增加學生
        /// </summary>
        /// <param name="vmTeacher">教師ViewModel</param>
        /// <returns>布爾值</returns>
         [OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)]
        public bool AddTeacher(TeacherViewModel vmTeacher)
        {
            //創建轉換規則
            Mapper.CreateMap<TeacherViewModel, TeacherEntity>();
            //轉換實體
            TeacherEntity enStudent = Mapper.Map<TeacherEntity>(vmTeacher);
            //調用dal層增加方法
            this.CurrentDal.Add(enStudent);
            //提交事務，返回結果
            return this.DbSession.SaveChanges() > 0;
        }
 

?? 2.在學生服務端的B層采用system.transactions進行分布式事務處理：

```

public void AddStudentTeacher(StudentViewModel vmStudent)
{
//創建轉換規則
Mapper.CreateMap<StudentViewModel, StudentEntity>();
//轉換實體
StudentEntity enStudent = Mapper.Map<StudentEntity>(vmStudent);

        //調用dal層增加方法
        this.CurrentDal.Add(enStudent);
        this.DbSession.SaveChanges();

        //調用老師的添加方法
        ITeacherContracts teacherContracts = ServiceFactory.GetTeacherService();

        TeacherViewModel vmTeacher = new TeacherViewModel { TeacherID = "123", TeacherName = "11" };
        teacherContracts.AddTeacher(vmTeacher);
    }
 

? ? ? ?3.由於每個事務處理都需要using TransactionScope、?trans.Complete，所以我們用Spring.Net的AOP管理這些相同的處理：

public class AroundAdvice : IMethodInterceptor
{
public object Invoke(IMethodInvocation invocation)
{
object result;
using (TransactionScope trans = new TransactionScope())
{
result = invocation.Proceed();
trans.Complete();

? ?4.配置數據庫服務器的MSDTC服務：
? ? ?4.1開啟MSDTC服務，在DOS中輸入net start msdtc；

? ? ?4.2設置MSDTC，在DOS中輸入dcomcnfg.exe，按下圖所示設置：
![](http://i2.51cto.com/images/blog/201810/28/9ab6fb5d815622f1cad479fe7af7375f.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)
      4.3關閉windows防火墻；

     4.4開啟數據庫的分布式事務支持，設置如下圖所示：
     5.![](http://i2.51cto.com/images/blog/201810/28/a1fc537db968195eef6d55adc98c5400.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)
     6. 當前版本是用system.transactions實現的分布式事務，用Spring.Net的AOP切了一下

Spring.Net+WCF實現分布式事務