VC http上传图片,不是很明白，帮忙指点下

xiaoguailong3 2011-07-12 10:31:43

html页面请求：成功，在页面上浏览一张图片，上传可以成功
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>

<body>
<form action="http://127.0.0.1/index.php" method="post" enctype="multipart/form-data" name="form1" id="form1">

<input name="AC" type="text" id="AC" value="SendImg" />
<input name="UserID" type="text" id="UserID" value="140606" />
<input name="Key" type="text" id="Key" value="xxx" />
<input name="ImgID" type="text" id="ImgID" value="140606" />
<input name="GroupID" type="text" id="GroupID" value="102" />
<input name="IMG" type="file" id="IMG" />
<input type="submit" name="Submit" value="提交" />
</form>
</body>
</html>

在VC里应该怎么post图片数据呢？？？

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一朵傲娇的奇葩 2013-04-12

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vc通过http上传图片，楼主有做好的工程文件么，发给我看看吧

xiaoguailong3 2011-07-12

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抓包解决了！

Eleven 2011-07-12

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用抓包工具抓个包看看发送了哪些数据，然后利用WinINET的CInternetSession类相关的发送出去就可以了

见习学术士 2011-07-12

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BOOL UseHttpSendReqEx(TCHAR *upFile)

{

HINTERNET hSession=NULL, hConnect=NULL, hRequest=NULL;



hSession = InternetOpen(_T("test"),INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,0);



hConnect = InternetConnect(hSession,_T("192.168.0.100"), INTERNET_DEFAULT_HTTP_PORT,  

NULL,NULL,INTERNET_SERVICE_HTTP,INTERNET_FLAG_NO_CACHE_WRITE,NULL);



  INTERNET_BUFFERS BufferIn = {0};

  DWORD dwBytesRead;

  DWORD dwBytesWritten;

  BYTE pBuffer[1024]; // Read from file in 1K chunks

  BOOL bRead, bRet;



  BufferIn.dwStructSize = sizeof( INTERNET_BUFFERS );



  hRequest = HttpOpenRequest (hConnect, "POST",

  "/mydirectory/test.txt", NULL, NULL, NULL, 0, 0);

  if (!hRequest)

  {

  printf("Failed to open request handle: %lu\n", GetLastError ());

  return FALSE;

  }



  HANDLE hFile = CreateFile (upFile, GENERIC_READ, FILE_SHARE_READ,

  NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

  if (hFile == INVALID_HANDLE_VALUE)

  {

  printf("\nFailed to open local file %s.", upFile);

  return FALSE;

  }



  BufferIn.dwBufferTotal = GetFileSize (hFile, NULL);

  printf ("File size is %d\n", BufferIn.dwBufferTotal );



  if(!HttpSendRequestEx( hRequest, &BufferIn, NULL, HSR_INITIATE, 0))

  {

  printf( "Error on HttpSendRequestEx %lu\n",GetLastError() );

  return FALSE;

  }



  DWORD sum = 0;

  do

  {

  if (!(bRead = ReadFile (hFile, pBuffer, sizeof(pBuffer),

  &dwBytesRead, NULL)))

  {

  printf ("\nReadFile failed on buffer %lu.",GetLastError());

  break;

  }

  if (!(bRet=InternetWriteFile( hRequest, pBuffer, dwBytesRead,

  &dwBytesWritten)))

  {

  printf ("\nInternetWriteFile failed %lu", GetLastError());

  break;

  }

  sum += dwBytesWritten;

  }

  while (dwBytesRead == sizeof(pBuffer)) ;



  CloseHandle (hFile);

  printf ("Actual written bytes: %d\n", sum);



  if(!HttpEndRequest(hRequest, NULL, 0, 0))

  {

  printf( "Error on HttpEndRequest %lu \n", GetLastError());

  return FALSE;

  }

  return TRUE;

}