HttpSendRequest发送POST参数的格式是什么？

[纹刀雨辰]

我用HttpSendRequest发送GET参数是没问题的，但发送POST参数，网站收不到，请问HttpSendRequest的POST参数的格式是什么？

strPostData = _T("info=abc&var=15");

HINTERNET hRequest = HttpOpenRequestW(hSession, _T("POST"), strPageUrl,
_T("HTTP/1.1"), _T(""), 0, INTERNET_FLAG_NO_AUTH |
INTERNET_FLAG_DONT_CACHE | INTERNET_FLAG_NO_CACHE_WRITE, 0);

BOOL bResult = HttpSendRequestW(hRequest, sHtmlHeader.GetBuffer(),
sHtmlHeader.GetLength(), strPostData.GetBuffer(), strPostData.GetLength());

[「已注销」]

比如请求http://img4.imgtn.bdimg.com/it/u=3836676079,1858751875&fm=26&gp=0.jpg ，会post传送 data=download， 则下面代码

HINTERNET hSession = InternetOpenW(L"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
HINTERNET hConnect = InternetConnectW(hSession, L"img4.imgtn.bdimg.com", (INTERNET_PORT)80 /*443*/, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
HINTERNET hRequest = HttpOpenRequestW(hConnect, L"Post", L"it/u=3836676079,1858751875&fm=26&gp=0.jpg", NULL, NULL, NULL, 0 /*INTERNET_FLAG_SECURE*/, 0);
HttpSendRequest(hRequest, NULL, NULL, (LPVOID)"data=download", strlen("data=download"));

[纹刀雨辰]

引用 1 楼 jha334201553 的回复:

比如请求http://img4.imgtn.bdimg.com/it/u=3836676079,1858751875&fm=26&gp=0.jpg ，会post传送 data=download， 则下面代码

HINTERNET hSession = InternetOpenW(L"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
HINTERNET hConnect = InternetConnectW(hSession, L"img4.imgtn.bdimg.com", (INTERNET_PORT)80 /*443*/, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
HINTERNET hRequest = HttpOpenRequestW(hConnect, L"Post", L"it/u=3836676079,1858751875&fm=26&gp=0.jpg", NULL, NULL, NULL, 0 /*INTERNET_FLAG_SECURE*/, 0);
HttpSendRequest(hRequest, NULL, NULL, (LPVOID)"data=download", strlen("data=download"));

没有用啊，我现在测试的地址是http://www.autumn-ink.com/BackupBoy/Registry.jsp
post传送info=abc&var=15
页面返回数据info=null var=null
用浏览器访问http://www.autumn-ink.com/BackupBoy/test.jsp页面post提交数据返回是正确的，说明不是网站问题

[zgl7903]

使用HTTP传输

{
  // TODO: Add your control notification handler code here
  CStringA strHtml;
  HttpTranslate(CHttpConnection::HTTP_VERB_POST, 
    _T("http://www.autumn-ink.com/BackupBoy/test.jsp"), _T("info=abc&var=15"), strHtml);

  if(!strHtml.IsEmpty())
  {
    TRACE(_T("%s\n"), strHtml);
    try
    {
      LPCTSTR szFile = _T("e:\\temp\\t.html");
      CFile f(szFile, CFile::modeCreate|CFile::modeWrite);
      f.Write((LPCSTR)strHtml, strHtml.GetLength());
      f.Close();

      ShellExecute(NULL, NULL, szFile, NULL, NULL, SW_SHOWNORMAL);
    }
    catch(CFileException *e)
    {
      e->ReportError();
      e->Delete();
    }
  }
  

}

[zgl7903]

使用HTTP传输

[纹刀雨辰]

引用 1 楼 jha334201553 的回复:

比如请求http://img4.imgtn.bdimg.com/it/u=3836676079,1858751875&fm=26&gp=0.jpg ，会post传送 data=download， 则下面代码

HINTERNET hSession = InternetOpenW(L"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
HINTERNET hConnect = InternetConnectW(hSession, L"img4.imgtn.bdimg.com", (INTERNET_PORT)80 /*443*/, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
HINTERNET hRequest = HttpOpenRequestW(hConnect, L"Post", L"it/u=3836676079,1858751875&fm=26&gp=0.jpg", NULL, NULL, NULL, 0 /*INTERNET_FLAG_SECURE*/, 0);
HttpSendRequest(hRequest, NULL, NULL, (LPVOID)"data=download", strlen("data=download"));

找到问题了，发送的好像必须是窄字符串，具体再研究一下，谢谢！
(LPVOID)"data=download", strlen("data=download")

[「已注销」]

推荐一个叫 httpanalyzerstdv7 的软件，本地抓http包，一看就很清晰了