WinHttpSendRequest 一次响应写问题问题

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#include <Windows.h> #include <winhttp.h> #include <iostream> #include <fstream>   #pragma comment(lib, "winhttp.lib")   void SendFileToServer(const std::string& serverURL, const std::string& filePath) {      HINTERNET hSession = WinHttpOpen(L"WinHTTP Example/1.0", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0);      HINTERNET  m_hConnect = WinHttpConnect( hSession, _T("192.168.232.143"), 9100, 0 );     if (hSession) {         HINTERNET hConnect = WinHttpOpenRequest(m_hConnect, L"POST", _T("/wb/File?Guid=100&MD5=abcdefg&SourceFileName=22.zip"), NULL, WINHTTP_NO_REFERER, WINHTTP_DEFAULT_ACCEPT_TYPES, 0);         if (hConnect) {          /*             CFileParam fileParam(_T("100"),FILE_BLACKB0X);                       //设置文件的开始             vector<BYTE> payloads;             DWORD dwStartTimeTick =::GetTickCount();             int nK=3 ,nI=10240 ,nJ=1024  ;int j= 0;int i = 0;int k=0;;             fileParam.SetTotalLength( 1*nI*nJ);               for( k=0; k<nK; k++)             {                 int c = 0;                 for(  i = 0 ;i< nI ; i++)                 {                     for(  j= 0; j<nJ ;j++)                     {                         payloads.push_back( 65);                     }                 }                 fileParam.SetStart();                 fileParam.Write( &payloads[0],payloads.size());                 result=CCommunicationFacade::Send(fileParam,pConn);                  result->GetErrorInfo(errString,&dwErrorCode);                   payloads.clear();                 }               payloads.clear();             //设置文件的结束             fileParam.SetEnd();               payloads.clear();             payloads.push_back(10);             std::wcout<<"now data"<<payloads[0];             fileParam.Write(&payloads[0],payloads.size());               */             if (WinHttpSendRequest(hConnect, L"Content-Type: application/octet-stream", -1L, WINHTTP_NO_REQUEST_DATA, 0, 0, 0)) {             char buf[100];             strcpy(buf,"123456789");       //    if (WinHttpSendRequest(hConnect, WINHTTP_NO_ADDITIONAL_HEADERS, -1L, buf, strlen(buf), strlen(buf), 0)) {             //  if (WinHttpSendRequest( hConnect,WINHTTP_NO_ADDITIONAL_HEADERS, 0,WINHTTP_NO_REQUEST_DATA, 0,0, 0)){                     std::string strExtInfo ="sfdfsdffffffffffsfdfdf";                   if ( 0 != strExtInfo.length() ) {                     // 默认可以一次全部写完                     WinHttpWriteData(hConnect, strExtInfo.c_str(), strExtInfo.length(), NULL );                 }        /*             WinHttpSendRequest( m_hRequest,                 WINHTTP_NO_ADDITIONAL_HEADERS,                 0,                 (LPBYTE)param.GetPostData(),                 param.GetPostDataLen(),                 param.GetPostDataLen(),   //在http头部的Content字段                 0 );             */               /*                 std::ifstream file(filePath, std::ios::binary);                 if (file) {                     file.seekg(0, std::ios::end);                     std::streampos fileSize = file.tellg();                     file.seekg(0, std::ios::beg);                       BYTE* pBuffer = new BYTE[fileSize];                     file.read(reinterpret_cast<char*>(pBuffer), fileSize);                       if (WinHttpWriteData(hConnect, pBuffer, static_cast<DWORD>(fileSize), NULL)) {                         if (WinHttpReceiveResponse(hConnect, NULL)) {                             // 处理服务器响应                             DWORD dwStatusCode = 0;                             DWORD dwSize = sizeof(DWORD);                             if (WinHttpQueryHeaders(hConnect, WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER, NULL, &dwStatusCode, &dwSize, NULL)) {                                 if (dwStatusCode == 200) {                                     std::cout << "File uploaded successfully" << std::endl;                                 } else {                                     std::cout << "Failed to upload file. HTTP status code: " << dwStatusCode << std::endl;                                 }                             }                         } else {                             std::cout << "Failed to receive response" << std::endl;                         }                     } else {                         std::cout << "Failed to send file data" << std::endl;                     }                       delete[] pBuffer;                     file.close();                 } else {                     std::cout << "Failed to open file" << std::endl;                 }                           */                                      }                                                       else {                 std::cout << "Failed to send request" << std::endl;             }               } else {             std::cout << "Failed to open request" << std::endl;                                         }           WinHttpCloseHandle(hConnect);         WinHttpCloseHandle(hSession);     } else {         std::cout << "Failed to open WinHTTP" << std::endl;     } }   int main(int argc, char* argv[]) {     SendFileToServer("aa","D:\\work\\bin\\2.zip");     system("PAUSE"); }