如何发送http basic auth post？

我的任务是使用基本身份验证创建 http 帖子。 我正在 asp.net MVC 应用程序中使用 C# 进行开发。

我也得到过这个例子。

{
POST /v2/token_endpoint HTTP/1.1
Authorization: Basic Y2xpZW50X2lkOmNsaWVudF9zZWNyZXQ=
Accept: application/json
Content-Type: application/x-www-form-urlencoded
User-Agent: Java/1.6.0_33
Host: api.freeagent.com
Connection: close
Content-Length: 127

grant_type=authorization_code&code=12P3AsFZXwXjd7SLOE1dsaX8oCgix&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Foauth
}

我的问题是如何用 C# 编写这个代码？ 如果需要更多信息，请询问，提前致谢

编辑：我已经取得了一些进展，但我还没有添加 grant_type

public void AccessToken(string code)
    {
        string url = @"https://api.freeagent.com/v2/token_endpoint";
        WebClient client = new WebClient();
        string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(ApiKey + ":" + ApiSecret));
        client.Headers[HttpRequestHeader.Authorization] = "Basic " + credentials;
        client.Headers[HttpRequestHeader.Accept] = "application/json";
        client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
        client.Headers[HttpRequestHeader.UserAgent] = "Java/1.6.0_33";
        client.Headers[HttpRequestHeader.Host] = "api.freeagent.com";
        client.Headers[HttpRequestHeader.Connection] = "close";
        client.Headers["grant_type"] = "authorization_code";

        var result = client.DownloadString(url);
    }

那么我该如何添加： grant_type=authorization_code&code=12P3AsFZXwXjd7SLOE1dsaX8oCgix&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Foauth 到帖子中？

您可以在此处找到两个示例，了解如何使用 WebRequest 和 WebClient 类发出基本身份验证请求：

http://grahamrhay.wordpress.com/2011/08/22/making-a-post-request-in-c-with-basic-authentication/ http://grahamrhay.wordpress.com/2011/08/22/making-a-post-request-in-c-with-basic-authentication/ http://anishshenoy57.wordpress.com/2013/01/22/basic-http-authentication-using-c/ http://anishshenoy57.wordpress.com/2013/01/22/basic-http-authentication-using-c/

基本上基本的身份验证只是Base64(username:password)，所以很容易实现。

UPDATE1

这是基于您的方法的示例：

public void AccessToken(string code)
{
    string url = @"https://api.freeagent.com/v2/token_endpoint";
    WebClient client = new WebClient();
    string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(ApiKey + ":" + ApiSecret));
    client.Headers[HttpRequestHeader.Authorization] = "Basic " + credentials;
    client.Headers[HttpRequestHeader.Accept] = "application/json";
    client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
    client.Headers[HttpRequestHeader.UserAgent] = "Java/1.6.0_33";
    client.Headers[HttpRequestHeader.Host] = "api.freeagent.com";
    client.Headers[HttpRequestHeader.Connection] = "close";
    client.Headers["grant_type"] = "authorization_code";

    string data = string.Format(
        "grant_type=authorization_code&code={0}&redirect_uri=http%3A%2F%2Flocalhost%3A8080",
        code);
    var result = client.UploadString(url, data);
}

唯一不同的是调用方法WebClient。下载字符串就可以了GET请求，但对于POST你需要使用UploadString http://msdn.microsoft.com/en-US/library/0645045y%28v=vs.110%29.aspx method