化零为整WCF(16) - 消息队列(MSMQ - MicroSoft Message Queue)

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化零为整WCF(16) - 消息队列(MSMQ - MicroSoft Message Queue)

作者：webabcd


介绍
WCF(Windows Communication Foundation) - 消息队列(MSMQ - MicroSoft Message Queue)：
    netMsmqBinding的binding属性配置如下：
    ・ExactlyOnce - 确保消息只被投递一次。只能应用于事务型队列，默认值 ture
    ・Durable - 消息是否需要持久化。默认值 enabled，如果设置为disable，当MSMQ服务重启后，先前保存在MSMQ中的消息将会丢失
    ・TimeToLive - 消息过期并且从原有的队列移动到死信队列的时间。默认值 1.00:00:00 （1天）
    ・ReceiveRetryCount - 配置队列管理器在一定重试间隔中，尝试重新投递消息的次数，也就是将消息传输到重试队列前尝试发送该消息的最大次数（每隔RetryCycleDelay的时间重试ReceiveRetryCount次）。缺省值 5
    ・MaxRetryCycles - 配置队列管理器重新投递消息的重试间隔数（执行RetryCycleDelay的次数），也就是重试最大周期数。缺省值 2
    ・RetryCycleDelay - 表示两次重试之间的间隔时间，也就是重试周期之间的延迟。缺省值 00:30:00
    ・ReceiveErrorHandling - 指定如何处理错误的消息。Fault、Drop、Reject或Move（具体说明查MSDN）
    ・DeadLetterQueue - 指定所使用的死信队列的类型。None、System、或Custom（具体说明查MSDN）
    ・CustomDeadLetterQueue - 本地自定义死信队列的URI


示例
1、服务
IMSMQ.cs

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

using System.ServiceModel;

namespace WCF.ServiceLib.Message
{
         /// <summary>
         /// 演示MSMQ的接口
         /// </summary>
         /// <remarks>
        /// DeliveryRequirements - 指定绑定必须提供给服务或客户端实现的功能要求
        /// QueuedDeliveryRequirements - 指定服务的绑定是否必须支持排队协定
        /// QueuedDeliveryRequirementsMode.Allowed - 允许排队传送
        /// QueuedDeliveryRequirementsMode.Required - 要求排队传送
        /// QueuedDeliveryRequirementsMode.NotAllowed - 不允许排队传送
        /// </remarks>
        [ServiceContract]
        [DeliveryRequirements(QueuedDeliveryRequirements = QueuedDeliveryRequirementsMode.Required)]
         public interface IMSMQ
        {
                 /// <summary>
                 /// 将字符串写入文本文件
                 /// </summary>
                 /// <param name="str">需要写入文本文件的字符串</param>
                 /// <remarks>
                /// 如果要使用 MSMQ 的话，则必须配置IsOneWay = true
                /// </remarks>
                [OperationContract(IsOneWay = true)]
                 void Write( string str);
        }
}

 

MSMQ.cs

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

using System.ServiceModel;

namespace WCF.ServiceLib.Message
{
         /// <summary>
         /// 演示MSMQ的类
         /// </summary>
         public class MSMQ : IMSMQ
        {
                 /// <summary>
                 /// 将字符串写入文本文件
                 /// </summary>
                 /// <param name="str">需要写入文本文件的字符串</param>
                 public void Write( string str)
                {
                        System.IO.StreamWriter sw = new System.IO.StreamWriter( @"C:\WCF_Log_MSMQ.txt", true);
                        sw.Write(str);
                        sw.WriteLine();
                        sw.Close();
                }
        }
}

 

2、宿主
MSMQ.cs

// 队列名
// 只能使用.\private$\YourPrivateMSMQName来访问本机的私有MSMQ队列
string queueName = @".\private$\SampleMSMQ";

// 没有queueName队列，则创建queueName队列
if (!System.Messaging.MessageQueue.Exists(queueName))
{
         // 第二个参数为是否创建事务性队列
        System.Messaging.MessageQueue.Create(queueName, true);
}

using (ServiceHost host = new ServiceHost( typeof(WCF.ServiceLib.Message.MSMQ)))
{
        host.Open();

        Console.WriteLine( "服务已启动(WCF.ServiceLib.Message.MSMQ)");
        Console.WriteLine( "按<ENTER>停止服务");
        Console.ReadLine();

}

 

App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
        <system.serviceModel>
                <services>
                        <!--name - 提供服务的类名-->
                        <!--behaviorConfiguration - 指定相关的行为配置-->
                        <service name="WCF.ServiceLib.Message.MSMQ" behaviorConfiguration="MessageBehavior">
                                <!--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="netMsmqBinding" contract="WCF.ServiceLib.Message.IMSMQ" bindingConfiguration="MSMQBindingConfiguration" />
                                <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
                                <host>
                                        <baseAddresses>
                                                <add baseAddress="http://localhost:12345/Message/MSMQ"/>
                                                <add baseAddress="net.msmq://localhost/private/SampleMSMQ"/>
                                        </baseAddresses>
                                </host>
                        </service>
                </services>
                <behaviors>
                        <serviceBehaviors>
                                <behavior name="MessageBehavior">
                                        <!--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>
                <bindings>
                        <netMsmqBinding>
                                <binding name="MSMQBindingConfiguration">
                                        <security>
                                                <!--msmqAuthenticationMode - 指示 MSMQ 传输必须采用什么方式对消息进行身份验证，默认值 WindowsDomain -->
                                                <!--MsmqAuthenticationMode.None - 不使用任何安全性-->
                                                <!--MsmqAuthenticationMode.WindowsDomain - 通过 Kerberos 进行身份验证，客户端和服务器必须连接到受信任域-->
                                                <!--MsmqAuthenticationMode.Certificate - 客户端通过 X.509 证书进行身份验证，客户端证书必须显示在服务器的证书存储区中-->

                                                <!--msmqProtectionLevel - 保护级别，设置与 MsmqAuthenticationMode 相关联的 ProtectionLevel，默认值 Sign -->
                                                <!--ProtectionLevel.None - 只做身份验证-->
                                                <!--ProtectionLevel.Sign - 对数据做签名，以确保所传输数据的完整性-->
                                                <!--ProtectionLevel.EncryptAndSign - 对数据做加密和签名，以确保所传输数据的保密性和完整性-->
                                                <transport msmqAuthenticationMode="None" msmqProtectionLevel="None" />

                                                <!--clientCredentialType - 客户端用以进行身份验证的凭据的类型，默认值 UserName -->
                                                <!--BasicHttpMessageCredentialType.UserName - 使用用户名凭据对客户端进行身份验证-->
                                                <!--BasicHttpMessageCredentialType.Certificate - 使用证书对客户端进行身份验证-->
                                                <message clientCredentialType="UserName" />
                                        </security>
                                </binding>
                        </netMsmqBinding>
                </bindings>
        </system.serviceModel>
</configuration>

 

 

3、客户端
MSMQ.cs

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

using System.Windows.Forms;
using System.ServiceModel;

namespace Client2.Message
{
         /// <summary>
         /// 演示Message.MSMQ的类
         /// </summary>
         public class MSMQ
        {
                 /// <summary>
                 /// 用于测试 MSMQ 的客户端
                 /// </summary>
                 /// <param name="str">需要写入文本文件的字符串</param>
                 public void HelloMSMQ( string str)
                {
                         using (var proxy = new MessageSvc.MSMQ.MSMQClient())
                        {
                                proxy.Write(str);
                        }
                }            
        }
}

 

App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
        <system.serviceModel>
                <client>
                        <!--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="net.msmq://localhost/private/SampleMSMQ" binding="netMsmqBinding"
                                contract="MessageSvc.MSMQ.IMSMQ" bindingConfiguration="MSMQBindingConfiguration" />
                </client>
                <bindings>
                        <netMsmqBinding>
                                <binding name="MSMQBindingConfiguration">
                                        <security>
                                                <!--msmqAuthenticationMode - 指示 MSMQ 传输必须采用什么方式对消息进行身份验证，默认值 WindowsDomain -->
                                                <!--MsmqAuthenticationMode.None - 不使用任何安全性-->
                                                <!--MsmqAuthenticationMode.WindowsDomain - 通过 Kerberos 进行身份验证，客户端和服务器必须连接到受信任域-->
                                                <!--MsmqAuthenticationMode.Certificate - 客户端通过 X.509 证书进行身份验证，客户端证书必须显示在服务器的证书存储区中-->

                                                <!--msmqProtectionLevel - 保护级别，设置与 MsmqAuthenticationMode 相关联的 ProtectionLevel，默认值 Sign -->
                                                <!--ProtectionLevel.None - 只做身份验证-->
                                                <!--ProtectionLevel.Sign - 对数据做签名，以确保所传输数据的完整性-->
                                                <!--ProtectionLevel.EncryptAndSign - 对数据做加密和签名，以确保所传输数据的保密性和完整性-->
                                                <transport msmqAuthenticationMode="None" msmqProtectionLevel="None" />

                                                <!--clientCredentialType - 客户端用以进行身份验证的凭据的类型，默认值 UserName -->
                                                <!--BasicHttpMessageCredentialType.UserName - 使用用户名凭据对客户端进行身份验证-->
                                                <!--BasicHttpMessageCredentialType.Certificate - 使用证书对客户端进行身份验证-->
                                                <message clientCredentialType="UserName" />
                                        </security>
                                </binding>
                        </netMsmqBinding>
                </bindings>
        </system.serviceModel>
</configuration>

 

 

运行结果：
客户端调用时，如果没有启动服务端，那么消息会进入到消息队列中。等到服务端启动后，会执行消息队列中的所有消息。


OK
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