如何在 C# 中解析 HTTP url？
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How can I parse HTTP urls in C#?
提问by vijay053
My requirement is to parse Http Urls and call functions accordingly. In my current implementation, I am using nested if-else statement which i think is not an optimized way. Can you suggest some other efficient approch?
我的要求是解析 Http Urls 并相应地调用函数。在我当前的实现中，我使用嵌套的 if-else 语句，我认为这不是优化的方式。你能建议一些其他有效的方法吗？
Urls are like these:
网址是这样的：
server/func1server/func1/SubFunc1server/func1/SubFunc2server/func2/SubFunc1server/func2/SubFunc2
server/func1server/func1/SubFunc1server/func1/SubFunc2server/func2/SubFunc1server/func2/SubFunc2
采纳答案by Suncat2000
I think you can get a lot of use out of the System.Uriclass. Feed it a URI and you can pull out pieces in a number of arrangements.
我认为您可以充分利用System.Uri类。为它提供一个 URI，您可以通过多种方式提取碎片。
Some examples:
一些例子：
Uri myUri = new Uri("http://server:8080/func2/SubFunc2?query=somevalue");
// Get host part (host name or address and port). Returns "server:8080".
string hostpart = myUri.Authority;
// Get path and query string parts. Returns "/func2/SubFunc2?query=somevalue".
string pathpart = myUri.PathAndQuery;
// Get path components. Trailing separators. Returns { "/", "func2/", "sunFunc2" }.
string[] pathsegments = myUri.Segments;
// Get query string. Returns "?query=somevalue".
string querystring = myUri.Query;
回答by Tim
I combined the split in Suncat2000's answer with string splitting to get at interesting features of the URL. I am passing in a full Uri including https: etc. from another page as the navigation argument e.Parameter:
我将 Suncat2000 的答案中的拆分与字符串拆分相结合，以获得 URL 的有趣功能。我从另一个页面传入一个完整的 Uri，包括 https: 等作为导航参数 e.Parameter：
Uri playlistUri = (Uri)e.Parameter;
string youtubePlaylistUnParsed = playlistUri.Query;
char delimiterChar = '=';
string[] sections = youtubePlaylistUnParsed.Split(delimiterChar);
string YoutubePlaylist = sections[1];
This gets me the playlist in the PLs__ etc. form for use in the Google APIs.
这让我获得了 PLs__ 等形式的播放列表，以便在 Google API 中使用。
回答by Luiso
This might come as a bit of a late answer but I found myself recently trying to parse some URLs and I went along using a combination of Uriand System.Web.HttpUtilityas seen here, my URLs were like http://one-domain.com/some/segments/{param1}?param2=x....so this is what I did:
这可能会作为一个有点晚了答案，但我发现自己最近试图解析一些网址和我一起使用的组合就Uri和System.Web.HttpUtility所看到这里，我的网址都喜欢http://one-domain.com/some/segments/{param1}?param2=x....，所以这是我做的事：
var uri = new Uri(myUrl);
string param1 = uri.Segments.Last();
var parameters = HttpUtility.ParseQueryString(uri.Query);
string param2 = parameters["param2"];
note that in both cases you'll be working with strings, and be specially weary when working with segments.
请注意，在这两种情况下，您都将使用strings，并且在使用段时会特别疲倦。
