VC6++ 通过post 读http

int CHQBmpCtrl::TryUrl(CString strAddress)

{

/**1

 char chHeader[128];
     char chData[128];
     char tChars[1024];
    
     memset(tChars,0,128);

     CInternetSession session;
     CHttpConnection* pConnection=NULL;
     CHttpFile* pFile=NULL;
 
  CFile newFile;
     newFile.Open("d:\\fileName",CFile::modeCreate | CFile::modeWrite);

 
     strcpy(chHeader,"Content-Type: application/x-www-form-urlencoded");
     strcpy(chData,"Action=GetOrder&OrderNo=188D1&Sign=xa3s");

     pConnection = session.GetHttpConnection(", "", "");
     if(pConnection == NULL)
  {
  sprintf(tChars, "GetHttpConnect failed, error = %d (0x%x)/n", GetLastError(), GetLastError());
   newFile.Write(tChars,strlen(tChars));
  newFile.Flush();
  newFile.Close();

  }
   newFile.Write("123",3);
  pFile = pConnection->OpenRequest(CHttpConnection::HTTP_VERB_POST,"/app");
      if(pFile == NULL)
  {
 sprintf(tChars, "OpenRequest failed, error = %d (0x%x)/n", GetLastError(), GetLastError());
   newFile.Write(tChars,strlen(tChars));
  newFile.Flush();
  newFile.Close();

  }
    newFile.Write("abc",3);
     try
 {
         pFile->SendRequest(chHeader,(DWORD)strlen(chHeader),(LPVOID *)chData,strlen(chData));

    
   }
 catch(CInternetException* pEx)
 {
newFile.Write("hhh\n",4);
sprintf(tChars, "OpenRequest failed, error = %d (0x%x)/n", GetLastError(), GetLastError());
   newFile.Write(tChars,strlen(tChars));
  newFile.Flush();
  newFile.Close();

 }
   newFile.Write("ddd",3);
     pFile->Read(tChars,128);
   newFile.Write("ttt",3);
     newFile.Write(tChars,strlen(tChars));
     session.Close();
     newFile.Close();

**/

 

/*2
 CFile newFile;
    CString fileName=strAddress.Mid(strAddress.ReverseFind('/')+1);

    newFile.Open("d:\\fileName",CFile::modeCreate | CFile::modeWrite);
 CInternetSession session;
 CInternetFile* file=NULL;

 try
 {
  file=(CInternetFile*)session.OpenURL(strAddress);
 }
 catch(CInternetException* pEx)
 {
        file=NULL;
        pEx->Delete();
    }

    if(file)
    { 
        int number=0;
        BYTE *buf;

        buf=new BYTE[1024];
        do
        {
         number=file->Read(buf,1024);
      newFile.Write(buf,number);
        }
        while(number>0);

        delete []buf;
    }
    file->Close();
 newFile.Close();
*/

/*3*/

    CFile   m_File;                 // 将返回数据写入文件  
    char    szAccept[]   = "Accept: */*"; 

    CString szFormData ;//  = "Action=GetOrder&OrderNo=188D1&Sign=xa3s"; 

    char buf[128];
    HINTERNET   hSession;    
    HINTERNET   hConnect;    
    HINTERNET   hRequest;    
    BOOL bReturn     = FALSE;
   
    // 之前使用Socket，现在使用Wininet相关API建立链接  
    hSession = InternetOpen("HQBmp.ocx",INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);
 
 //   hSession = InternetOpen("HQBmp.ocx",INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,INTERNET_FLAG_ASYNC );

 if(!hSession)
  return 34;
 //  hConnect = InternetConnect(hSession,"); 
   hConnect = InternetConnect(hSession,"); 

//  hConnect = InternetConnect(hSession,"); 

 if(!hConnect)
  return 35;
    hRequest = HttpOpenRequest(hConnect,"POST","/pospay/getorder/","HTTP/1.1"," ",(LPCSTR *)&szAccept, INTERNET_FLAG_RELOAD | INTERNET_FLAG_NO_CACHE_WRITE ,2); 
    if(!hRequest)
  return 36;
    // 提交数据表单  
    LPVOID pBuf = (LPVOID)szFormData.GetBuffer(szFormData.GetLength());
    bReturn = HttpSendRequest(hRequest,"Content-Type: application/x-www-form-urlencoded\r\n",strlen("Content-Type: application/x-www-form-urlencoded\r\n"),pBuf,szFormData.GetLength()); 
 
 if(!bReturn) 
    { 
  sprintf(buf, "HttpSendRequest failed, error = %d (0x%x)/n", GetLastError(), GetLastError());
  m_File.Open("d:\\fileName1",CFile::modeCreate | CFile::modeWrite);
  m_File.Write(buf,strlen(buf));
  m_File.Flush();
  m_File.Close();
  InternetCloseHandle(hSession);
  InternetCloseHandle(hConnect);
  InternetCloseHandle(hRequest);
        return 37; 
    } 
 
    char    szRecvBuf[1024];        // 接受数据缓冲区  
    DWORD   dwNumberOfBytesRead;    // 服务器返回大小  
  
 
    m_File.Open("d:\\fileName1",CFile::modeCreate | CFile::modeWrite);

    memset(szRecvBuf,0,1024); 
 
    do 
    {    
        // 开始读取数据  
        bReturn = InternetReadFile(hRequest,szRecvBuf,1023,&dwNumberOfBytesRead); 
        if(!bReturn)
   return 38;

        // 统计接受数据的大小  
        szRecvBuf[dwNumberOfBytesRead] = '\0'; 

        // 将缓冲区写入文件  
     m_File.Write(szRecvBuf,strlen(szRecvBuf));
  m_File.Flush();
  memset(szRecvBuf, 0, 1024);
    } while(bReturn && dwNumberOfBytesRead !=0); 
 
 m_File.Close();
    InternetCloseHandle(hSession);
    InternetCloseHandle(hConnect);
    InternetCloseHandle(hRequest);

    return 333;

}