【转载】化零为整WCF(14) - 事务(Transaction)

http://www.cnblogs.com/webabcd/archive/2008/06/24/1229049.html

 

化零为整WCF(14) - 事务(Transaction)

作者：webabcd


介绍
WCF(Windows Communication Foundation) - 事务(Transaction)：
    ·对契约方法使用TransactionFlowAttribute声明（设置TransactionFlowOption参数），以指定服务操作的事务流策略
    ·对服务方法是用OperationBehaviorAttribute声明（设置TransactionScopeRequired参数），以指定方法是否在事务范围(TransactionScope)内执行
    ·配置host和client的binding节点的transactionFlow属性，以指定绑定是否支持流事务


示例
1、服务
Hello.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.ServiceModel;

namespace WCF.ServiceLib.Transaction

Hi.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.ServiceModel;

namespace WCF.ServiceLib.Transaction

Result.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.ServiceModel;

namespace WCF.ServiceLib.Transaction

2、宿主
Hello.svc

%>

Hi.svc

%>

Result.svc

%>

Web.config

<?xml version="1.0"?>
<configuration>
    <system.serviceModel>
        <behaviors>
            <serviceBehaviors>
                <behavior name="TransactionBehavior">
                    <!--httpGetEnabled - 指示是否发布服务元数据以便使用 HTTP/GET 请求进行检索，如果发布 WSDL，则为 true，否则为 false，默认值为 false-->
                    <serviceMetadata httpGetEnabled="true" />
                    <serviceDebug includeExceptionDetailInFaults="true"/>
                </behavior>
            </serviceBehaviors>
        </behaviors>
        <services>
            <!--name - 提供服务的类名-->
            <!--behaviorConfiguration - 指定相关的行为配置-->
            <service name="WCF.ServiceLib.Transaction.Hello" behaviorConfiguration="TransactionBehavior">
                <!--address - 服务地址-->
                <!--binding - 通信方式-->
                <!--contract - 服务契约-->
                <!--bindingConfiguration - 指定相关的绑定配置-->
                <endpoint address="" binding="wsHttpBinding" contract="WCF.ServiceLib.Transaction.IHello" bindingConfiguration="TransactionConfiguration" />
            </service>
            <service name="WCF.ServiceLib.Transaction.Hi" behaviorConfiguration="TransactionBehavior">
                <endpoint address="" binding="wsHttpBinding" contract="WCF.ServiceLib.Transaction.IHi" bindingConfiguration="TransactionConfiguration" />
            </service>
            <service name="WCF.ServiceLib.Transaction.Result" behaviorConfiguration="TransactionBehavior">
                <endpoint address="" binding="basicHttpBinding" contract="WCF.ServiceLib.Transaction.IResult" />
            </service>
        </services>
        <bindings>
            <wsHttpBinding>
                <!--transactionFlow - 指定该绑定是否应支持流事务-->
                <binding name="TransactionConfiguration" transactionFlow="true" />
            </wsHttpBinding>
        </bindings>
    </system.serviceModel>
</configuration>

3、客户端
Sample.aspx

Sample.aspx.cs

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

using System.Threading;

public partial class Transaction_Sample : System.Web.UI.Page

Web.config

<?xml version="1.0"?>
<configuration>
    <system.serviceModel>
        <client>
            <!--address - 服务地址-->
            <!--binding - 通信方式-->
            <!--contract - 服务契约-->
            <endpoint address="http://localhost:3502/ServiceHost/Transaction/Hello.svc" binding="wsHttpBinding" contract="TransactionSvc.Hello.IHello" bindingConfiguration="TransactionBindingConfiguration" />
            <endpoint address="http://localhost:3502/ServiceHost/Transaction/Hi.svc" binding="wsHttpBinding" contract="TransactionSvc.Hi.IHi" bindingConfiguration="TransactionBindingConfiguration" />
            <endpoint address="http://localhost:3502/ServiceHost/Transaction/Result.svc" binding="basicHttpBinding" contract="TransactionSvc.Result.IResult" />
        </client>
        <bindings>
            <wsHttpBinding>
                <!--transactionFlow - 指定该绑定是否应支持流事务-->
                <binding name="TransactionBindingConfiguration" transactionFlow="true" />
            </wsHttpBinding>
        </bindings>
    </system.serviceModel>
</configuration>

运行结果：
单击"btnSubmit"按钮后，可以发现，两个数据库插入操作，要么都执行，要么都不执行