I have a url, I pass it to Webclient, and I get response without any problem.
String* uriString = S"trade7.master link.com.tw/futures/QuotePrice.jsp" ;
String* postData = S"";
// Create a new WebClient instance.
WebClient* myWebClient = new WebClient();
// Apply ASCII Encoding to obtain the String* as a Byte array.
Byte postArray[]= Encoding::ASCII->GetBytes(postD ata);
myWebClient->Headers->Add(S"Conten t-Type",
S"applicatio n/x-www-form-urlencoded");
//UploadData implicitly sets HTTP POST as the request method.
Byte responseArray[] = myWebClient->UploadData(uri String, postArray);
Now I pass the same string to HttpWebRequest. However, I do not get any
response
and get time-out exception. What is wrong with my HttpWebRequest call?
String* uriString = S"trade7.master link.com.tw/futures/QuotePrice.jsp" ;
HttpWebRequest *request = dynamic_cast<Ht tpWebRequest*>
(WebRequest::Cr eate(uriString) );
request->Method = "POST";
request->Credentials = CredentialCache ::DefaultCreden tials;
request->ContentType = S"applicatio n/x-www-form-urlencoded";
HttpWebResponse * response = dynamic_cast<Ht tpWebResponse*>
(request->GetResponse()) ;
// Gets the stream associated with the response.
Stream* receiveStream = response->GetResponseStr eam();
Encoding* encode = System::Text::E ncoding::GetEnc oding(S"utf-8");
// Pipes the stream to a higher level stream reader with the required
encoding format.
StreamReader* readStream = new StreamReader(re ceiveStream, encode);
String* responseText = readStream->ReadToEnd();
response->Close(); 2 11568
Kueishiong Tu wrote: I have a url, I pass it to Webclient, and I get response without any problem.
String* uriString = S"trade7.master link.com.tw/futures/QuotePrice.jsp" ; String* postData = S""; // Create a new WebClient instance. WebClient* myWebClient = new WebClient(); // Apply ASCII Encoding to obtain the String* as a Byte array. Byte postArray[]= Encoding::ASCII->GetBytes(postD ata);
myWebClient->Headers->Add(S"Conten t-Type",
S"applicatio n/x-www-form-urlencoded");
//UploadData implicitly sets HTTP POST as the request method. Byte responseArray[] = myWebClient->UploadData(uri String, postArray);
Now I pass the same string to HttpWebRequest. However, I do not get any response and get time-out exception. What is wrong with my HttpWebRequest call?
String* uriString = S"trade7.master link.com.tw/futures/QuotePrice.jsp" ; HttpWebRequest *request = dynamic_cast<Ht tpWebRequest*>
(WebRequest::Cr eate(uriString) ); request->Method = "POST"; request->Credentials = CredentialCache ::DefaultCreden tials; request->ContentType = S"applicatio n/x-www-form-urlencoded";
HttpWebResponse * response = dynamic_cast<Ht tpWebResponse*>
(request->GetResponse()) ; // Gets the stream associated with the response. Stream* receiveStream = response->GetResponseStr eam(); Encoding* encode = System::Text::E ncoding::GetEnc oding(S"utf-8");
// Pipes the stream to a higher level stream reader with the required encoding format. StreamReader* readStream = new StreamReader(re ceiveStream, encode);
String* responseText = readStream->ReadToEnd(); response->Close();
You're not posting anything. You're HttpWebRequest based code does not
emulate the line
myWebClient->UploadData(uri String, postArray);
You need to write your post data to the request stream before getting the
response:
// C# ;->
byte[] bytes = Encoding.UTF8.G etBytes(data);
HttpWebRequest request = (HttpWebRequest ) WebRequest.Crea te(url);
request.Method = "POST";
request.Content Length = bytes.Length;
request.Content Type = "applicatio n/x-www-form-urlencoded";
using (Stream requestStream = request.GetRequ estStream()) {
requestStream.W rite(bytes, 0, bytes.Length);
}
HttpWebResponse response = (HttpWebRespons e) request.GetResp onse();
Cheers,
--
Joerg Jooss jo*********@gmx .net
You are absolutely right. Thank you very much for the help.
Kueishiong Tu This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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