稳扎稳打Silverlight(39) - 3.0通信之二进制XML通信, 本地连接

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稳扎稳打Silverlight(39) - 3.0通信之二进制XML通信,本地连接

作者：webabcd


介绍
Silverlight 3.0 通信的新增功能

• 二进制XML通信 - 与 WCF 服务间通信，可以使用二进制 XML 传递数据（提高传输性能） 
• 本地连接 - 允许客户端的两个 Silverlight 程序之间直接进行通信（不用通过服务端）

在线DEMO
http://www.voidcn.com/article/p-boakcggz-tq.html  


示例
1、以二进制 XML 传递数据的演示
服务端（WCF）
BinaryXmlService.svc

using System;

using System.Linq;

using System.Runtime.Serialization;

using System.ServiceModel;

using System.ServiceModel.Activation;

using System.Collections.Generic;

using System.Text;

namespace Silverlight30.Service

{

         /// <summary>

         /// 一个简单的 WCF 服务

         /// </summary>

        [ServiceContract]

        [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]

         public class BinaryXmlService

        {

                [OperationContract]

                 public string Hello( string name)

                {

                         return "Hello: " + name;

                }

        }

}

 

Web.config

< system.serviceModel >
         < bindings >
                 < customBinding >
                         < binding name ="customBinding0" >
                                 < binaryMessageEncoding />
                                 < httpTransport />
                         </ binding >
                 </ customBinding >
         </ bindings >
         < serviceHostingEnvironment aspNetCompatibilityEnabled ="true" />
         < behaviors >
                 < serviceBehaviors >
                         < behavior name ="Silverlight30.Service.BinaryXmlServiceBehavior" >
                                 < serviceMetadata httpGetEnabled ="true" />
                                 < serviceDebug includeExceptionDetailInFaults ="false" />
                         </ behavior >
                 </ serviceBehaviors >
         </ behaviors >
         < services >
                 < service behaviorConfiguration ="Silverlight30.Service.BinaryXmlServiceBehavior"
                         name ="Silverlight30.Service.BinaryXmlService" >
                         < endpoint address ="" binding="customBinding" bindingConfiguration ="customBinding0"
                                 contract ="Silverlight30.Service.BinaryXmlService" />
                         < endpoint address ="mex" binding ="mexHttpBinding" contract ="IMetadataExchange" />
                 </ service >
         </ services >
</ system.serviceModel >

 

客户端
BinaryXml.xaml

<navigation:Page x:Class="Silverlight30.Communication.BinaryXml"    
                     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"    
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                     mc:Ignorable="d"
                     xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
                     d:DesignWidth="640" d:DesignHeight="480"
                     Title="BinaryXml Page">
        <Grid x:Name="LayoutRoot">
                <StackPanel Orientation="Horizontal" Height="30">
                
                        <!--支持二进制 XML 通信-->
                
                        <TextBox x:Name="txtName" Text="webabcd" />
                        <Button x:Name="btnHelloConfig" Content="引用服务后（使用代理），通过配置的方式与服务端做二进制XML通信" Click="btnHelloConfig_Click" />
                        <Button x:Name="btnHelloCoding" Content="引用服务后（使用代理），通过编程的方式与服务端做二进制XML通信" Click="btnHelloCoding_Click" />
                
                </StackPanel>
        </Grid>
</navigation:Page>

 

BinaryXml.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Windows.Navigation;

using Silverlight30.BinaryXmlService;

using System.ServiceModel.Channels;

using System.ServiceModel;

namespace Silverlight30.Communication

{

         public partial class BinaryXml : Page

        {

                 public BinaryXml()

                {

                        InitializeComponent();

                }

                 void client_HelloCompleted( object sender,HelloCompletedEventArgs e)

                {

                         if (e.Error == null)

                                MessageBox.Show(e.Result);

                         else

                                MessageBox.Show(e.Error.ToString());

                }

                 private void btnHelloConfig_Click( object sender,RoutedEventArgs e)

                {

                         // 通过配置文件（ServiceReferences.ClientConfig）的方式调用以二进制 XML 通信的 WCF 服务（需要使用代理）

                        BinaryXmlServiceClient client = new BinaryXmlServiceClient();

                        client.HelloCompleted += new EventHandler<HelloCompletedEventArgs>(client_HelloCompleted);

                        client.HelloAsync(txtName.Text);

                }

                 private void btnHelloCoding_Click( object sender,RoutedEventArgs e)

                {

                         // 通过编程的方式调用以二进制 XML 通信的 WCF 服务（需要使用代理）

                        BinaryMessageEncodingBindingElement binary = new BinaryMessageEncodingBindingElement();

                        HttpTransportBindingElement transport = new HttpTransportBindingElement();

                        CustomBinding binding = new CustomBinding(binary,transport);

                        EndpointAddress address = new EndpointAddress( "http://localhost:8616/BinaryXmlService.svc");

                        BinaryXmlServiceClient client = new BinaryXmlServiceClient(binding,address);

                        client.HelloCompleted += new EventHandler<HelloCompletedEventArgs>(client_HelloCompleted);

                        client.HelloAsync(txtName.Text);

                }

        }

}

 

ServiceReferences.ClientConfig

< configuration >
         < system.serviceModel >
                 < bindings >
                         < customBinding >
                                 < binding name ="CustomBinding_BinaryXmlService" >
                                         < binaryMessageEncoding />
                                         < httpTransport maxReceivedMessageSize ="2147483647" maxBufferSize ="2147483647" />
                                 </ binding >
                         </ customBinding >
                 </ bindings >
                 < client >
                         < endpoint address ="http://localhost:8616/BinaryXmlService.svc"
                                 binding ="customBinding" bindingConfiguration ="CustomBinding_BinaryXmlService"
                                 contract ="BinaryXmlService.BinaryXmlService" name ="CustomBinding_BinaryXmlService" />
                 </ client >
         </ system.serviceModel >
</ configuration >

 

 

2、本地连接的演示
Silverlight 程序 1
LocalConnection.xaml

<navigation:Page x:Class="Silverlight30.Communication.LocalConnection"    
                     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"    
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                     mc:Ignorable="d"
                     xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
                     d:DesignWidth="640" d:DesignHeight="480"
                     Title="LocalConnection Page">
        <Grid x:Name="LayoutRoot">
                <StackPanel>
                
                        <!--结合 Silverlight30.LocalConnection/MainPage.xaml 中的项目演示 Silverlight 对本地连接的支持-->
                
                        <TextBlock Text="我是 abc" />
                        <Button x:Name="btnSubmit" Content="提交" Click="btnSubmit_Click" />
                        <TextBlock x:Name="lblResult" />
                        
                </StackPanel>
        </Grid>
</navigation:Page>

 

LocalConnection.xaml.cs

/*

* LocalMessageReceiver - 本地连接接收器

*         ReceiverName - 接收器的名称。与另一个 Silverlight 程序所设置的发送器的接收器名称相对应

*         AllowedSenderDomains - 信任的发送器所属域名列表

*         disableSenderTrustCheck - 是否不理会 Vista 下的 IE 7 的保护模式。默认值为 false

*         NameScope - 接收器名称是在同域唯一还是在全域唯一（ReceiverNameScope.Domain 同域唯一，默认值；ReceiverNameScope.Global 全域唯一）

*         Listen() - 开始监听发送过来的信息

*         MessageReceived事件 - 接收完成事件

*            

* LocalMessageSender - 本地连接发送器

*         ReceiverName - 接收器的名称。与另一个 Silverlight 程序所设置的接收器的接收器名称相对应

*         ReceiverDomain - 将要发送至的接收器所属域名

*         SendAsync(string message,object userState) - 异步发送数据。（参数1：需要发送的信息；参数2：上下文，可以传递给发送完成事件）

*         SendCompleted事件 - 发送完成事件

*/

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Windows.Navigation;

using System.Windows.Messaging;

namespace Silverlight30.Communication

{

         public partial class LocalConnection : Page

        {

                LocalMessageSender _sender;

                 public LocalConnection()

                {

                        InitializeComponent();

                         this.Loaded += new RoutedEventHandler(LocalConnection_Loaded);

                }

                 void LocalConnection_Loaded( object sender,RoutedEventArgs e)

                {

                        _sender = new LocalMessageSender( "abc");

                        LocalMessageReceiver receiver = new LocalMessageReceiver( "xyz");

                        receiver.MessageReceived += new EventHandler<MessageReceivedEventArgs>(receiver_MessageReceived);

                        receiver.Listen();                        

                }

                 void receiver_MessageReceived( object sender,MessageReceivedEventArgs e)

                {

                        lblResult.Text += e.Message + "\r\n";

                }

                 private void btnSubmit_Click( object sender,RoutedEventArgs e)

                {

                        _sender.SendAsync( "在 abc 单击了按钮");

                }

        }

}

 

Silverlight 程序 2
Silverlight30.LocalConnection/MainPage.xaml

<UserControl x:Class="Silverlight30.LocalConnection.MainPage"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"    
        mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480">
        <Grid x:Name="LayoutRoot">
                <StackPanel>
                
                        <!--结合 Silverlight30/Communication/LocalConnection.xaml 中的项目演示 Silverlight 对本地连接的支持-->
                
                        <TextBlock Text="我是 xyz" />
                        <Button x:Name="btnSubmit" Content="提交" Click="btnSubmit_Click" />
                        <TextBlock x:Name="lblResult" />
                        
                </StackPanel>
        </Grid>
</UserControl>

 

Silverlight30.LocalConnection/MainPage.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Windows.Messaging;

namespace Silverlight30.LocalConnection

{

         public partial class MainPage : UserControl

        {

                LocalMessageSender _sender;

                 public MainPage()

                {

                        InitializeComponent();

                         this.Loaded += new RoutedEventHandler(MainPage_Loaded);

                }

                 void MainPage_Loaded( object sender,RoutedEventArgs e)

                {

                        _sender = new LocalMessageSender( "xyz");

                        LocalMessageReceiver receiver = new LocalMessageReceiver( "abc");

                        receiver.MessageReceived += new EventHandler<MessageReceivedEventArgs>(receiver_MessageReceived);

                        receiver.Listen();

                }

                 void receiver_MessageReceived( object sender,MessageReceivedEventArgs e)

                {

                        lblResult.Text += e.Message + Environment.NewLine;

                }

                 private void btnSubmit_Click( object sender,RoutedEventArgs e)

                {

                        _sender.SendAsync( "在 xyz 单击了按钮");

                }

        }

}

 

以上两个 Silverlight 程序间可以进行本地通信
Silverlight30.LocalConnectionTestPage.html

<object data="data:application/x-silverlight-2," type="application/x-silverlight-2"
        height="100%" style="float: left; width: 50%">
         < param name ="source" value ="ClientBin/Silverlight30.xap" />
         < param name ="onError" value ="onSilverlightError" />
         < param name ="background" value ="white" />
         < param name ="minRuntimeVersion" value ="3.0.40624.0" />
         < param name ="autoUpgrade" value ="true" />
         < a href ="http://go.microsoft.com/fwlink/?LinkID=149156&v=3.0.40624.0" style ="text-decoration: none" >
                <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight"
                        style="border-style: none" />
         </a>
</object>
<object data="data:application/x-silverlight-2," type="application/x-silverlight-2"
        height="100%" style="float: left; width: 50%">
         < param name ="source" value ="ClientBin/Silverlight30.LocalConnection.xap" />
         < param name ="onError" value ="onSilverlightError" />
         < param name ="background" value ="white" />
         < param name ="minRuntimeVersion" value ="3.0.40624.0" />
         < param name ="autoUpgrade" value ="true" />
         < a href ="http://go.microsoft.com/fwlink/?LinkID=149156&v=3.0.40624.0" style ="text-decoration: none" >
                <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight"
                        style="border-style: none" />
         </a>
</object>

 

 

OK
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