HttpWebRequest：如何識別瀏覽器？

Question

問題是如何構建HttpWebRequest所以查詢的服務器會認爲它來自瀏覽器？

Answer 1

您可以設置User-Agent HTTP請求標頭。

var request = (HttpWebRequest)WebRequest.Create("http://www.google.com"); 
request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2"; 

，或者如果你有一個WebClient工作：

using (var client = new WebClient()) 
{ 
    client.Headers[HttpRequestHeader.UserAgent] = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2"; 
    ... 
}