namespace Client.Controllers

{

    public class HomeController : Controller

    {

        //

        // GET: /Home/

        public ActionResult Index()

        {

            string url = ""; // 这里我们还不知道服务器的url，因此留空

            #region 构造POST请求

            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;

            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";

            request.Host = "localhost:14340";

            string body = "client_id=123&redirect_uri="+url+"&response_type=code";

            byte[] bodyBytes = Encoding.UTF8.GetBytes(body);

            Stream requestStream = request.GetRequestStream();

            requestStream.Write(bodyBytes,,bodyBytes.Length);

            #endregion

            #region 发送请求并取得响应

            // 必须使用HttpWebRequest.GetResponse()方法，请求才能被发送并取得响应

            HttpWebResponse response = request.GetResponse() as HttpWebResponse;

            StreamReader sr = new StreamReader(response.GetResponseStream());

            ViewBag.Response = sr.ReadToEnd();

            #endregion

            return View();

        }

    }

}

namespace Server.Models

{

    /// <summary>

    /// 对于POST请求，必须对请求体的所有参数建立一个模型类。

    /// </summary>

    public class RequestArgs

    {

        public string client_id { get; set; }

        public string redirect_uri { get; set; }

        public string response_type { get; set; }

    }

}

namespace Server.Controllers

{

    public class ApiTestController : ApiController

    {

        public HttpResponseMessage Post(RequestArgs args)

        {

            string client_id = args.client_id;

            string redirect_uri = args.redirect_uri;

            string response_type = args.response_type;

            return Request.CreateResponse(HttpStatusCode.OK, "I have received your message. Client_id = "+client_id+", RedirectUri = "+redirect_uri+"response_type = "+response_type);

        }

    }

}

private string HttpPost(string Url, string postDataStr)

        {

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);

            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";

            byte[] data = Encoding.UTF8.GetBytes(postDataStr);

            request.ContentLength = data.Length;

            Stream myRequestStream = request.GetRequestStream();

            myRequestStream.Write(data, , data.Length);

            myRequestStream.Close();

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            Stream myResponseStream = response.GetResponseStream();

            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);

            string retString = myStreamReader.ReadToEnd();

            myStreamReader.Close();

            myResponseStream.Close();

            return retString;

        }

        public string HttpGet(string Url, string urlParams = null)

        {

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (string.IsNullOrEmpty(urlParams) ? "" : "?") + urlParams);

            request.Method = "GET";

            request.ContentType = "text/html;charset=UTF-8";

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            Stream myResponseStream = response.GetResponseStream();

            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);

            string retString = myStreamReader.ReadToEnd();

            myStreamReader.Close();

            myResponseStream.Close();

            return retString;

        }