如何在 WCF 客户端服务代理上设置 HTTP 代理 (WebProxy)? [英] How can I set an HTTP Proxy (WebProxy) on a WCF client-side Service proxy?
问题描述
如何在 WCF 客户端上以编程方式设置 HTTP 代理，而不使用默认代理?
How can I set the HTTP proxy programmatically, on a WCF client, without using the default proxy?
代理，代理，代理.
根据WCF的开发模型，我生成客户端代理"通过在服务的 WSDL 上运行 svcutil.exe 来创建类.(这也是生成客户端配置文件).
According to the WCF model of development, I generate client-side "proxy" classes by running svcutil.exe on the WSDL for the service. (This also produces a client-side config file).
在我的代码中，我新建了该类的一个实例，并且可以连接到服务.很不错.
In my code I new-up an instance of that class and I can connect to the service. Very nice.
var svcProxy = new MyWebService();
svcProxy.GetInformation(request);
我们称这个东西为代理类，但还有另一个代理——http 代理.这服务使用的是wsHttpBinding basicHttpBinding，所以就过去了http.现在，假设我想通过以下方式将客户端连接到 Web 服务http 代理(由 .NET BCL 中的 System.Net.WebProxy 建模).我知道从我阅读 .NET 和 WCF 文档的广泛而愉快的经历来看，WCF 运行时，如果没有另外指示，将使用默认值通过 http/https 通信时的系统代理.
We call this thing a proxy class, but there is another proxy - the http proxy. This service is using wsHttpBinding basicHttpBinding, so it is going over http. Now, suppose I want to connect the client to the web service over a http proxy (modeled by a System.Net.WebProxy in the .NET BCL). I know from my extensive, delightful experience reading .NET and WCF documentation, that the WCF runtime, if not instructed otherwise, will use the default system proxy when communicating over http/https.
我可以从命令行设置WinXP/2003 使用此处描述的 ProxyCfg.exe，以及稍后Windows 版本 和 netsh.exe如此处所述.
I can set that from the command line in WinXP / 2003 with ProxyCfg.exe as described here, and in later versions of Windows with netsh.exe as described here.
我还可以指定在应用程序中使用的默认网络代理通过设置 System.Net.WebRequest.DefaultWebProxy 属性.
I can also specify the default web proxy for use within the application by setting the System.Net.WebRequest.DefaultWebProxy property.
但是假设我想通过一个与代理不同的代理进行连接全系统代理?例如，也许没有系统范围的代理，但是我需要特别为 Web 服务使用一个.或者也许有一个系统范围的代理，但我需要为网络使用不同的代理服务.事实上，可能有多个 Web 服务客户端，并且每个人都应该得到一个不同的代理.
But suppose I want to connect over a proxy that is different than the system-wide proxy? For instance maybe there is no system-wide proxy but I need to use one for the web service in particular. Or maybe there is a system-wide proxy but I need to use a different one, for the web service. And in fact maybe there are multiple web service clients, and each one should get a different proxy.
如何设置每个绑定的代理?
How can the proxy be set per-binding?
在 ASMX 模型中，我可以这样做:
In the ASMX model, I could do this:
var svcProxy = new MyWebService();
svcProxy.Proxy = new System.Net.WebProxy("http://proxyserver:1234", true);
svcProxy.GetInformation(request);
但这在 WCF 中是不可能的；WCF 生成的客户端代理类不公开 Proxy 属性.如何设置每个客户端代理的 http 代理，以及如何在 http 代理上设置身份验证?
But this is not possible with WCF; the WCF-generated client-side proxy classes do not expose a Proxy property. How do I set the http proxy, per client-side proxy, and how do I set authentication on the http proxy as well?
相关:
- how-to-set-proxy-with-credentials-to-generated-wcf-client
推荐答案
代理设置是绑定配置的一部分.例如，查看 ProxyAddress 属性BasicHTTPBinding 和 WSHttpBinding 类/配置元素.
The proxy settings are part of the binding configuration. For example, look at the ProxyAddress property of the BasicHTTPBinding and WSHttpBinding classes/configuration elements.
看起来您将端点配置保留在 app.config 文件中，在这种情况下，您应该能够在那里设置地址.
Looks like you're leaving your endpoint configuration in the app.config file, in which case you should be able to set the address there.
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