.net - WCF:如何从配置中获取 Binding 对象

Question

我想从 web.config 或 app.config 获取 Binding 对象。

所以，这段代码有效:

wcfTestClient = new TestServiceClient("my_endpoint", Url + "/TestService.svc");

但我想做以下事情:

Binding binding = DoSomething();
wcfTestClient = new TestServiceClient(binding, Url + "/TestService.svc");

当然，我对 DoSomething() 方法感兴趣。

Answer 1

这个答案满足了 OP 的要求，并且 100% 摘自 Pablo M. Cibraro 的这篇精彩帖子。

http://weblogs.asp.net/cibrax/getting-wcf-bindings-and-behaviors-from-any-config-source

此方法为您提供配置的绑定(bind)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;
}

此方法为您提供了您迫切需要的实际 Binding 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;
}