POST data as a form
GET data
The technical difference between POST and GET is to seperate URL and data. Data is
a part of head in HTTP protocal when POSTing, so that there's an extra part:
strHeaders = _T("Content-Type: application/x-www-form-urlencoded")
You can change this sentence as image, or binary file.
The difference between source code in this page and in last page is signed by
Blue color;
strFormData is data waiting for sent, its content:
strFormData =
#ifndef _DEBUG
strHttpName="http://www.fadshop.net/curl/progsave.asp";
#else
strHttpName = "http://Mycomputer/fadshop/curl/progsave.asp";
#endif
// strHttpName = strHttpName + "?" + strFormData;
in GET method
CInternetSession sess;//Create session
CHttpFile* fileGet;
CString strHeaders =
_T("Content-Type: application/x-www-form-urlencoded");
CException* e;
TRY
{
fileGet=(CHttpFile*)sess.OpenURL(strHttpName);//Open File
}
CATCH_ALL(e)
{
TRACE("Err:%d\n", GetLastError());
fileGet = 0;
}
END_CATCH_ALL
if(fileGet)
{
DWORD dwStatus;
DWORD dwBuffLen = sizeof(dwStatus);
BOOL bSuccess = fileGet->QueryInfo(
HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER,
&dwStatus, &dwBuffLen);
strGetSentence = "";
if( bSuccess && dwStatus>= 200 &&dwStatus<300 ) {
BOOL result = fileGet->SendRequest(strHeaders,
(LPVOID)(LPCTSTR)strFormData, strFormData.GetLength());
while(fileGet->ReadString(strSentence)){
strGetSentence = strGetSentence + strSentence + char(13) +
char(10);
}//Get and display
SetDlgItemText(IDC_COMMENT, strGetSentence);
SetDlgItemText(IDC_UPLOADMSG, "Received, thankyou."); }// if bSuccess.
else
SetDlgItemText(IDC_UPLOADMSG, "Error.");
fileGet->Close();
delete fileGet;
}
else
SetDlgItemText(IDC_UPLOADMSG, "Net work problem");
sess.Close();
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