WCF面向服务应用程序系列之九：绑定-自定义绑定(CustomBinding)
上一章我们介绍了WCF绑定的基本知识，这一章我们通过一个DEMO来介绍如何创建一个自定义绑定(CustomBinding)的程序。从本章起，我们假定读者对WCF一有定的了解，DEMO创建的过程介绍将省略一些简单的步骤。自定义绑定(CustomBinding)与前面介绍的WCF程序的区别主要在于通过修改配置文件来达到创建自定义绑定(CustomBinding)的目的。
开发环境：Visual Studio 2010 + Net Framework 4.0 。
1、创建一个WCF Service，主要代码如下：
接口代码
[ServiceContract(Namespace
=
"
http://schemas.xinhaijulan.com/demos/CustomBinding
"
)]
public
interface
IHelloWCFService
{
[OperationContract]
string
HelloWCF(
string
inputMsg);
}
实现类代码
public
class
HelloWCFService:IHelloWCFService
{
public
string
HelloWCF(
string
inputMsg)
{
return
"
The message returned from server:
"
+
inputMsg;
}
}
2、修改App.config文件：
对于WCF Service项目来说我们可以通过配置工具来进行修改App.config。
2.1、右键点击App.config，选中Edit WCF Configuration，如下图：
2.2、添加自定义绑定项，如下图：
2.3、修改EndPoint，采用customBinding的方式，修改Binding和BindingConfiguration，如下图：
2.4、关闭配置工具，保存，自定义绑定的配置文件修改完毕。
3、添加客户端项目，并添加对CustomBindingServer的引用，主要代码如下：
客户端代码
static
void
Main(
string
[] args)
{
using
(CustomBindingServer.HelloWCFServiceClient client
=
new
CustomBindingServer.HelloWCFServiceClient())
{
Console.WriteLine(
"
Please input some keys:
"
);
string
inputMsg
=
Console.ReadLine();
Console.WriteLine(
"
The sever will return some message below:
"
);
Console.WriteLine(client.HelloWCF(inputMsg));
}
Console.ReadLine();
}
4、此时我们可以打开客户端的app.config文件，可以看到在此文件中自动生成的配置方式为我们服务端配置的customBinding方式，与服务端是一致的，如下：
客户端生成的配置文件
<?
xml version
=
"
1.0
"
encoding
=
"
utf-8
"
?>
<
configuration
>
<
system.serviceModel
>
<
bindings
>
<
customBinding
>
<
binding name
=
"
CustomBinding_IHelloWCFService
"
>
<
reliableSession acknowledgementInterval
=
"
00:00:00.2000000
"
flowControlEnabled
=
"
true
"
inactivityTimeout
=
"
00:10:00
"
maxPendingChannels
=
"
4
"
maxRetryCount
=
"
8
"
maxTransferWindowSize
=
"
8
"
ordered
=
"
true
"
reliableMessagingVersion
=
"
Default
"
/>
<
binaryMessageEncoding maxReadPoolSize
=
"
64
"
maxWritePoolSize
=
"
16
"
maxSessionSize
=
"
2048
"
>
<
readerQuotas maxDepth
=
"
32
"
maxStringContentLength
=
"
8192
"
maxArrayLength
=
"
16384
"
maxBytesPerRead
=
"
4096
"
maxNameTableCharCount
=
"
16384
"
/>
</
binaryMessageEncoding
>
<
httpTransport manualAddressing
=
"
false
"
maxBufferPoolSize
=
"
524288
"
maxReceivedMessageSize
=
"
65536
"
allowCookies
=
"
false
"
authenticationScheme
=
"
Anonymous
"
bypassProxyOnLocal
=
"
false
"
decompressionEnabled
=
"
true
"
hostNameComparisonMode
=
"
StrongWildcard
"
keepAliveEnabled
=
"
true
"
maxBufferSize
=
"
65536
"
proxyAuthenticationScheme
=
"
Anonymous
"
realm
=
""
transferMode
=
"
Buffered
"
unsafeConnectionNtlmAuthentication
=
"
false
"
useDefaultWebProxy
=
"
true
"
/>
</
binding
>
</
customBinding
>
</
bindings
>
<
client
>
<
endpoint address
=
"
http://localhost:8732/Design_Time_Addresses/CustomBindingServer/HelloWCFService/
"
binding
=
"
customBinding
"
bindingConfiguration
=
"
CustomBinding_IHelloWCFService
"
contract
=
"
CustomBindingServer.IHelloWCFService
"
name
=
"
CustomBinding_IHelloWCFService
"
/>
</
client
>
</
system.serviceModel
>
</
configuration
>
5、设置客户端为启动项，F5运行，我们将看到此DEMO正常运行，输出如下：
Please input some keys:
You are a good boy
!
The sever will
return
some message below:
The message returned from server:You are a good boy
!
至此，自定义绑定(CustomBinding)介绍完毕。
作者：心海巨澜
出处：http:
//xinhaijulan.cnblogs.com
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