在C#中cURL模拟?
问题描述:
尝试发送请求,但它并不适用于某些原因:在C#中cURL模拟?
这是应该curl命令
curl --data "client_id={client_id}&client_secret={client_secret}&code={code}&grant_type=authorization_code&redirect_uri={redirect_uri}" https://cloud.testtest.com/oauth/access_token.php
但在C#我已经建立了工作这一个:
var webRequest = (HttpWebRequest)WebRequest.Create("https://cloud.merchantos.com/oauth/access_token.php");
webRequest.Method = "POST";
if (requestBody != null)
{
webRequest.ContentType = "application/x-www-form-urlencoded";
using (var writer = new StreamWriter(webRequest.GetRequestStream()))
{
writer.Write("client_id=1&client_secret=111&code=MY_CODE&grant_type=authorization_code&redirect_uri=app.testtest.com");
}
}
HttpWebResponse response = null;
try
{
response = (HttpWebResponse)webRequest.GetResponse();
}
catch (WebException exception)
{
var responseStream = exception.Response.GetResponseStream();
if (responseStream != null)
{
var reader = new StreamReader(responseStream);
string text = reader.ReadToEnd().Trim();
throw new WebException(text);
}
}
请指教。由于某种原因不能确定为什么代码不起作用
答
当使用WebRequest
时,您需要遵循特定的模式,通过设置请求类型,凭证和请求内容(如果有的话)。
这通常出来到类似:
WebRequest request = WebRequest.Create("http://www.contoso.com/PostAccepter.aspx ");
// Set the Network credentials
request.Credentials = CredentialCache.DefaultCredentials;
request.Method = "POST";
// Create POST data and convert it to a byte array.
string postData = "This is a test that posts this string to a Web server.";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/x-www-form-urlencoded";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
using (Stream dataStream = request.GetRequestStream())
{
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
}
using (WebResponse response = request.GetResponse())
{
// Display the status.
Console.WriteLine(((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
Console.WriteLine(reader.ReadToEnd());
}
}
以上是请求应该怎样构成的样品。查看您的示例代码,看起来您缺少Credentials
和ContentLength
属性。然而,屏幕截图显示前者存在问题。
查看MSDN的更多详细信息 - http://msdn.microsoft.com/en-us/library/1t38832a(v=vs.110).aspx
请说明“不行”。 – Dmitry 2014-09-01 09:43:32
我想我编写的代码不起作用,因为我从服务器接收到400个错误的请求。听起来像我在C#代码中犯了一个错误 – Sergey 2014-09-01 09:46:48
你需要从服务器读取响应,它应该给你一个Json格式的错误描述。如果我使用你指定的细节(显然你已经改变了证书),它会给出HTTP 400错误:'error_description =客户证书无效' – DavidG 2014-09-01 09:54:53