如何發佈從.net

Question

到Java servlet發出請求如何發佈以下數據服務器URL：

數據：

enc_request=63957FB55DD6E7B968A7588763E08B240878046EF2F520C44BBC63FB9CCE726209A4734877F5904445591304ABB2F5E598B951E39EAFB9A24584B00590ADB077ADE5E8C444EAC5A250B1EA96F68D22E44EA2515401C2CD753DBA91BD0E7DFE7341BE1E7B7550&access_code=8JXENNSSBEZCU8KQ&command=confirmOrder&request_type=XML&response_type=XML&version=1.1 

網址：

"https://logintest.ccavenue.com/apis/servlet/DoWebTrans"; 

我試過https://social.msdn.microsoft.com/Forums/vstudio/en-US/df76fbfa-2931-4c9f-8671-785307243f62/post-request-to-a-java-servlet-and-process-httpresponse-using-net?forum=wcf。但我得到的錯誤：C# System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send

下面是我的代碼：

    StringBuilder sbQueryString = new StringBuilder(); 
       CCACrypto ccaCrypto = new CCACrypto(); 
       string workingKey = "14A246E9D4341159638AC8EB776F3BE6"; 

//put  in the 32bit alpha numeric key in the quotes provided here 

       sbQueryString.Append("enc_request="); 
       sbQueryString.Append(ccaCrypto.Encrypt(GenerateOrderXml(appointmentId), workingKey)); 
       sbQueryString.Append("&"); 
       sbQueryString.Append("access_code="); 
       sbQueryString.Append("AVQJ68DL46BW00JQWB"); 
       sbQueryString.Append("&"); 
       sbQueryString.Append("Command="); 
       sbQueryString.Append("cancelOrder"); 
       sbQueryString.Append("&"); 
       sbQueryString.Append("request_type=XML&response_type=XML"); 
       sbQueryString.Append("&"); 
       sbQueryString.Append("version=1.1"); 
       //Response.Redirect("../ccAvenue/ccavAPIHandler.aspx?" + sbQueryString.ToString(), false); 

       //string url = "https://logintest.ccavenue.com/apis/servlet/DoWebTrans"; 
       string url = "https://180.179.175.17/apis/servlet/DoWebTrans"; 

       // Create a request using a URL that can receive a post. 
       WebRequest request = WebRequest.Create(url); 
       // Set the Method property of the request to POST. 
       request.Method = "POST"; 
       // Create POST data and convert it to a byte array. 
       string postData = sbQueryString.ToString(); 
       byte[] byteArray = Encoding.UTF8.GetBytes(postData); 
       // Set the ContentType property of the WebRequest. 
       request.ContentType = "application/x-www-form-urlencoded"; 
       // Set the ContentLength property of the WebRequest. 
       request.ContentLength = byteArray.Length; 
       // Get the request stream. 
       Stream dataStream = request.GetRequestStream(); 
       // Write the data to the request stream. 
       dataStream.Write(byteArray, 0, byteArray.Length); 
       // Close the Stream object. 
       dataStream.Close(); 
       // Get the response. 
       WebResponse response = request.GetResponse(); 
       // Display the status. 
       Console.WriteLine(((HttpWebResponse)response).StatusDescription); 
       // Get the stream containing content returned by the server. 
       dataStream = response.GetResponseStream(); 
       // Open the stream using a StreamReader for easy access. 
       StreamReader reader = new StreamReader(dataStream); 
       // Read the content. 
       string responseFromServer = reader.ReadToEnd(); 
       // Display the content. 
       Console.WriteLine(responseFromServer); 
       // Clean up the streams. 
       reader.Close(); 
       dataStream.Close(); 
       response.Close(); 

Answer 1

您可以嘗試使用WebClient簡化代碼：

using (var client = new WebClient()) 
{ 
    var data = new NameValueCollection 
    { 
     { "enc_request", "63957FB55DD6E7B968A7588763E08B240878046EF2F520C44BBC63FB9CCE726209A4734877F5904445591304ABB2F5E598B951E39EAFB9A24584B00590ADB077ADE5E8C444EAC5A250B1EA96F68D22E44EA2515401C2CD753DBA91BD0E7DFE7341BE1E7B7550" }, 
     { "access_code", "8JXENNSSBEZCU8KQ" }, 
     { "command", "confirmOrder" }, 
     { "request_type", "XML" }, 
     { "response_type", "XML" }, 
     { "version", "1.1" }, 
    }; 
    var url = "https://logintest.ccavenue.com/apis/servlet/DoWebTrans"; 
    byte[] result = client.UploadValues(url, data); 
}