C# 類比 Post

方式一：不啟動IE，代碼中Post

  try                {                    string url = "http:\\xxx.com" ;                    string postString = "uid=xx&pwd=xxx";                    byte[] postData = Encoding.UTF8.GetBytes(postString);                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri(url));                    request.Method = "POST";                    //for some customer,use proxy, so add this.                    //refer:http://www.cnblogs.com/cxd4321/archive/2012/01/30/2331621.html                    request.ServicePoint.Expect100Continue = false;                    int timeout = 5000;                    Int32.TryParse(Settings.Default.LoginTimeOut, out timeout);                    if (timeout < 5000 || timeout > 15000)                        timeout = 5000;                    request.Timeout = timeout;                    request.ContentType = "application/x-www-form-urlencoded";                    request.ContentLength = postData.Length;                    using (Stream requestStream = request.GetRequestStream())                    {                        requestStream.Write(postData, 0, postData.Length);                    }                    HttpWebResponse response = (HttpWebResponse)request.GetResponse();                    StreamReader stream = new StreamReader(response.GetResponseStream(), Encoding.Default);                    string srcString = stream.ReadToEnd();                    response.Close();                    stream.Close();                    Trace.WriteLine(srcString);                }                catch (Exception ex)                {                    Trace.WriteLine(ex);                }

 string url ="http://xxx.com"                        string postString = "parms=xx&pid=yyy";                        byte[] postData = Encoding.UTF8.GetBytes(postString);                        WebClient webClient = new WebClient();                        webClient.UseDefaultCredentials = true;                        webClient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");                        byte[] responseData = webClient.UploadData(url, "POST", postData);                        string srcString = Encoding.UTF8.GetString(responseData);                        Trace.WriteLine(srcString);

 

方式二：啟動IE，並類比Post

先添加引用，COM-->Microsoft Internet Controls

再添加代碼：

            string postData = "username=admin&password=admin";            var ie = new InternetExplorer();            object vPost, vHeaders, vFlags, vTargetFrame;            vPost = null;            vFlags = null;            vTargetFrame = null;            vHeaders = "Content-Type: application/x-www-form-urlencoded" + Convert.ToChar(10) + Convert.ToChar(13);            if (!string.IsNullOrEmpty(postData))                vPost = ASCIIEncoding.Default.GetBytes(postData);            ie.Visible = true;            string url = "http://{IP}/validate";            ie.Navigate(url, ref vFlags, ref vTargetFrame, ref vPost, ref vHeaders);