如何在C＃中POST請求與內容類型爲X-WWW-form-urlencoded？

Question

Picture of Postman POST request

我想使這個POST請求接收OAuth2用戶訪問令牌，但使用C＃代碼在Visual Studio 2015年

感謝。

Answer 1

System.Net.HttpWebRequest是你需要知道的類，這是一個簡單的例子。關於更多信息，請參閱MSDN：https://msdn.microsoft.com/en-us/library/system.net.httpwebrequest(v=vs.110).aspx

HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url); 
webRequest.Method = "POST"; 
webRequest.AllowAutoRedirect = true; 
webRequest.Timeout = 20 * 1000; 
webRequest.ContentType = "application/x-www-form-urlencoded"; 
webRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"; 
webRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"; 


//write the data to post request 
//Postdata : a=1&b=2&c=3 
byte[] buffer = Encoding.Default.GetBytes(Postdata); 
if (buffer != null) 
{ 
    webRequest.ContentLength = buffer.Length; 
    webRequest.GetRequestStream().Write(buffer, 0, buffer.Length); 
} 

WebResponse wr = webRequest.GetResponse()