是否可以修改 WinRT HttpWebRequest 的用户代理？

发布于 2024-12-05 11:10:14 字数 487 浏览 1 评论 0原文

我正在尝试将现有应用程序转换为 VS 11 开发人员预览版中的 Metro UI 应用程序。这意味着针对 WinRT 运行时运行（如果我错了，请纠正我）。它在 Windows 8 开发者预览版上运行。

我需要调用 REST API，这需要设置特定的用户代理。这在 WInRT 中似乎不可能。我有以下原始代码：

_request = WebRequest.CreateHttp(url);
_request.UserAgent = UserAgent;

但是没有为 HttpWebRequest 定义 UserAgent 属性。我还尝试过：

_request.Headers["User-Agent"] = UserAgent;

这会导致运行时异常：System.ArgumentException：必须使用适当的属性或方法修改此标头。

如何修改 User-Agent 标头？

原文

I am trying to convert an existing app to a Metro UI app in VS 11 Developer Preview. This means running against the WinRT runtime (correct me if I'm wrong). This runs on the Windows 8 Developer Preview.

I need to call a REST API, which requires a specific user-agent to be set. This doesn't seem to be possible in WInRT. I have the following original code:

_request = WebRequest.CreateHttp(url);
_request.UserAgent = UserAgent;

But the UserAgent property is not defined for HttpWebRequest. I also tried:

_request.Headers["User-Agent"] = UserAgent;

This results in a runtime exception: System.ArgumentException: This header must be modified using the appropriate property or method.

How can I modify the User-Agent header ?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

ペ泪落弦音 2024-12-12 11:10:14

经过一番修改后，我现在已经弄清楚如何在 WinRT 中执行此操作。此版本中的 HttpWebRequest API 已发生变化，比完整的 .NET Framework 中的要差很多。但是，我可以使用新的 < 发送请求code>HttpClient API，它允许我发送用户代理标头：

var req = new HttpClient(handler)
var message = new HttpRequestMessage(HttpMethod.Get, url);
message.Headers.Add("User-Agent", "myCustomUserAgent");
var response = await req.SendAsync(message);

After some tinkering around, I have now worked out how to do this in WinRT. The HttpWebRequest API has changed in this version to be a lot poorer than in the full .NET Framework. However, I can send a request with the new HttpClient API, which will allow me to send the user-agent header:

var req = new HttpClient(handler)
var message = new HttpRequestMessage(HttpMethod.Get, url);
message.Headers.Add("User-Agent", "myCustomUserAgent");
var response = await req.SendAsync(message);

回复收藏 0 原文