稳扎稳打Silverlight(39) - 3.0通信之二进制XML通信, 本地连接-阿里云开发者社区

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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://webabcd.blog.51cto.com/1787395/342289

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">

                        

                        <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>

                        

                        <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

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

OK
[源码下载]

本文转自webabcd 51CTO博客，原文链接： http://blog.51cto.com/webabcd/342768 ，如需转载请自行联系原作者

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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