SilverLight与WCF服务双工通讯第二篇:Net.Tcp binding

如果还不知道如何让silverLight通过net.tcp管理与WCF服务通讯, 请先阅读 SilverLight通过Net.TCP(NetTCPBinding)方式调用WCF服务.

一. 建立项目

这里我建立了一个新的演示项目叫做SLTCPDuplexSample和SLTCPDuplexSample.Web, 前面的流程和《SilverLight通过Net.TCP(NetTCPBinding)方式调用WCF服务》 一文是完全相同的.

二. 服务端配置

在SLTCPDuplexSample.Web中新建一个名为service1.svc的WCF服务, 其实它的代码和上一篇SilverLight与WCF服务双工通讯第一篇:PollingDuplexHttpBinding 完全相同, 这里不再重复列出, 关于IService1.cs和Service1.svc.cs, 请参阅上一篇中的代码.

将web.config中的<system.serviceModel>节按如下配置:

<system.serviceModel>

<bindings>
<netTcpBinding>
<binding name="tcpBindingConfig1">
<security mode="None"></security>
</binding>
</netTcpBinding>
</bindings>

<services>
<service name="SLTCPDuplexSample.Web.Service1">
<endpoint address=""
binding="netTcpBinding"
bindingConfiguration="tcpBindingConfig1"
contract="SLTCPDuplexSample.Web.IService1">
</endpoint>
<endpoint address="mex"
binding="mexTcpBinding"
contract="IMetadataExchange">
</endpoint>
<host>
<baseAddresses>
<add baseAddress="net.tcp://localhost:4502/SLTCPDuplexSample.Web/Service1.svc"/>
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"
multipleSiteBindingsEnabled="true" />
</system.serviceModel>

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

 

发布, 并将其添加到IIS中. 关于IIS中的配置, SilverLight通过Net.TCP(NetTCPBinding)方式调用WCF服务 一文已经非常详细的列举, 请参阅上文配置IIS.

 

三. SL端的配置

在SL项目中添加服务引用, 将自动生成相应的ServiceReferences.ClientConfig, 由于net.tcp是由.net framework内置支持的, 所以不需要额外做任何的引用.

在SL的MainPage中放一个名为txt1的文本框和一个名为btn1的按钮, 在btn的点击事件中:

private void btn1_Click_1(object sender, RoutedEventArgs e)
{
var proxy = new ServiceReference1.Service1Client();
proxy.PushMessageReceived += proxy_PushMessageReceived;
proxy.RegisterClientAsync();
}

void proxy_PushMessageReceived(object sender, ServiceReference1.PushMessageReceivedEventArgs e)
{
txt1.Text = e.message;
}

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

运行, 点击btn1, 即可看到服务端推送的时间数据.

 

结语: 本文写得比较简单, 因为实际上跟pollingDuplex模式相比, 代码部分基本上是完全相同的, 所不同的只有web.config配置. tcp双工跟pollingDuplex相比, 既不需要额外引用 dll, 也拥有更高得多的性能, 所以基于tcp的双工应该是实践中的首选.