.net WCF：如何从配置中获取绑定对象
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WCF: How to get Binding object from configuration
提问by bh213
I would like to get Binding object from web.config or app.config.
我想从 web.config 或 app.config 获取绑定对象。
So, this code works:
所以，这段代码有效：
wcfTestClient = new TestServiceClient("my_endpoint", Url + "/TestService.svc");
but I would like to do the following:
但我想做以下事情：
Binding binding = DoSomething();
wcfTestClient = new TestServiceClient(binding, Url + "/TestService.svc");
I am interested in DoSomething() method, of course.
我当然对 DoSomething() 方法感兴趣。
采纳答案by Philippe
You can instantiate a binding giving a binding configuration name from App.config/Web.config.
您可以从 App.config/Web.config 实例化一个绑定，给出一个绑定配置名称。
http://msdn.microsoft.com/en-us/library/ms575163.aspx
http://msdn.microsoft.com/en-us/library/ms575163.aspx
Initializes a new instance of the WSHttpBinding class with a binding specified by its configuration name.
The following example shows how to initialize a new instance of the WSHttpBinding class with a string argument.
// Set the IssuerBinding to a WSHttpBinding loaded from config b.Security.Message.IssuerBinding = new WSHttpBinding("Issuer");
使用由其配置名称指定的绑定初始化 WSHttpBinding 类的新实例。
以下示例显示如何使用字符串参数初始化 WSHttpBinding 类的新实例。
// Set the IssuerBinding to a WSHttpBinding loaded from config b.Security.Message.IssuerBinding = new WSHttpBinding("Issuer");
回答by daniloquio
This answer fulfills the OP request and is 100% extracted from this amazing post from Pablo M. Cibraro.
这个答案满足了 OP 的要求，并且 100% 是从 Pablo M. Cibraro 的这篇精彩文章中提取的。
http://weblogs.asp.net/cibrax/getting-wcf-bindings-and-behaviors-from-any-config-source
http://weblogs.asp.net/cibrax/getting-wcf-bindings-and-behaviors-from-any-config-source
This method gives you the config's binding section.
此方法为您提供配置的绑定部分。
private BindingsSection GetBindingsSection(string path)
{
System.Configuration.Configuration config =
System.Configuration.ConfigurationManager.OpenMappedExeConfiguration(
new System.Configuration.ExeConfigurationFileMap() { ExeConfigFilename = path },
System.Configuration.ConfigurationUserLevel.None);
var serviceModel = ServiceModelSectionGroup.GetSectionGroup(config);
return serviceModel.Bindings;
}
This method gives you the actual Bindingobject you are so desperately needing.
这种方法为您提供了您Binding非常需要的实际对象。
public Binding ResolveBinding(string name)
{
BindingsSection section = GetBindingsSection(path);
foreach (var bindingCollection in section.BindingCollections)
{
if (bindingCollection.ConfiguredBindings.Count > 0
&& bindingCollection.ConfiguredBindings[0].Name == name)
{
var bindingElement = bindingCollection.ConfiguredBindings[0];
var binding = (Binding)Activator.CreateInstance(bindingCollection.BindingType);
binding.Name = bindingElement.Name;
bindingElement.ApplyConfiguration(binding);
return binding;
}
}
return null;
}
回答by Yossi Dahan
回答by Jason Gerard
If you don't know the type of the binding until runtime, you can use the following:
如果您直到运行时才知道绑定的类型，您可以使用以下命令：
return (Binding)Activator.CreateInstance(bindingType, endpointConfigName);
Where bindingType of the type of the binding and endpointConfigName is the name of specified in the config file.
其中绑定类型的bindingType 和endpointConfigName 是配置文件中指定的名称。
All the included bindings provide a constructor that takes the endpointConfigurationName as the only parameter so this should work for all of them. I have used it for WsHttpBinding and NetTcpBinding without problems.
所有包含的绑定都提供了一个构造函数，该构造函数将 endpointConfigurationName 作为唯一参数，因此这应该适用于所有绑定。我已经将它用于 WsHttpBinding 和 NetTcpBinding 没有问题。
回答by Marc Gravell
One cheeky option might be to create an instance with the default constructor, to use as a template:
一个大胆的选择可能是使用默认构造函数创建一个实例，用作模板：
Binding defaultBinding;
using(TestServiceClient client = new TestServiceClient()) {
defaultBinding = client.Endpoint.Binding;
}
Then tuck this away and re-use it. Any help?
然后将其收起并重新使用。有什么帮助吗？
