C# 如何在 Asp.NET 中获取 url 响应值
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How to get the url response values in Asp.NET
提问by Gigi2m02
I almost dare to ask, but how can i get the response data of a URL? I just can't remember anymore.
我几乎敢问，但我怎样才能得到一个 URL 的响应数据呢？我只是想不起来了。
My scenario: I'm using the twitter API to get the profile picture of an user. That API URL returns the JPEG location. So if I actually write this HTML in my views:
我的场景：我使用 twitter API 来获取用户的个人资料图片。该 API URL 返回 JPEG 位置。所以如果我真的在我的视图中写了这个 HTML：
<img src="https://api.twitter.com/1/users/profile_image?screen_name=twitterapi&size=bigger"/>
The browser auto uses the response JPEG for the SRC property. Like this:
浏览器自动使用响应 JPEG 作为 SRC 属性。像这样：
Now is my question very simple: how can I get that .jpg location in C# to put in my database?
现在我的问题很简单：如何将 C# 中的 .jpg 位置放入我的数据库中？
采纳答案by Timmerz
I'm not exactly sure what you are asking.
我不确定你在问什么。
I think you can use WebClient.DownloadDatain c# to call that url. Once you download the file, you can then place it in the database.
我认为您可以WebClient.DownloadData在 c# 中使用来调用该 url。下载文件后，您可以将其放入数据库中。
byte[] response = new System.Net.WebClient().DownloadData(url);
Download a file over HTTP into a byte array in C#?
EDIT: THIS IS WORKING FOR ME
编辑：这对我有用
WebRequest request = WebRequest.Create("https://api.twitter.com/1/users/profile_image?screen_name=twitterapi&size=bigger");
WebResponse response = request.GetResponse();
Console.WriteLine(response.ResponseUri);
Console.Read( );
from A way to figure out redirection URL
EDIT: THIS IS ANOTHER METHOD I THINK...using show.json from Read the absolute redirected SRC attribute URL for an image
编辑：这是我认为的另一种方法......使用 show.json 来自Read the absolute redirected SRC attribute URL for an image
http://api.twitter.com/1/users/show.json?screen_name=twitterapi
http://api.twitter.com/1/users/show.json?screen_name=twitterapi
回答by David Peden
You can also do it using HttpClient:
您也可以使用 HttpClient 来完成：
public class UriFetcher
{
public Uri Get(string apiUri)
{
using (var httpClient = new HttpClient())
{
var httpResponseMessage = httpClient.GetAsync(apiUri).Result;
return httpResponseMessage.RequestMessage.RequestUri;
}
}
}
[TestFixture]
public class UriFetcherTester
{
[Test]
public void Get()
{
var uriFetcher = new UriFetcher();
var fetchedUri = uriFetcher.Get("https://api.twitter.com/1/users/profile_image?screen_name=twitterapi&size=bigger");
Console.WriteLine(fetchedUri);
}
}
回答by dash
You can use the HttpWebRequest and HttpWebResponse classes (via using System.Net)to achieve this;
您可以使用 HttpWebRequest 和 HttpWebResponse 类（通过using System.Net）来实现这一点；
HttpWebRequest webRequest =
WebRequest.Create("https://api.twitter.com/1/users/profile_image?screen_name=twitterapi&size=bigger") as HttpWebRequest;
webRequest.Credentials = CredentialCache.DefaultCredentials;
HttpWebResponse response = webRequest.GetResponse() as HttpWebResponse;
string url = response.ResponseUri.OriginalString;
url now contains the string "https://si0.twimg.com/profile_images/1438634086/avatar_bigger.png"
url 现在包含字符串 "https://si0.twimg.com/profile_images/1438634086/avatar_bigger.png"
