LPCTSTR lpszAgent = L"WinInetGet/0.1";HINTERNET hInternet = InternetOpen( lpszAgent,INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);LPCTSTR lpszServerName = L"www.alipay.com";//L"ssl.google-analytics.com"; //设置serverINTERNET_PORT nServerPort = INTERNET_DEFAULT_HTTPS_PORT; // HTTPS端口443LPCTSTR lpszUserName = NULL; //无登录用户名LPCTSTR lpszPassword = NULL; //无登录密码 DWORD dwConnectFlags = 0;DWORD dwConnectContext = 0;HINTERNET hConnect = InternetConnect( hInternet,lpszServerName, nServerPort,lpszUserName, lpszPassword,INTERNET_SERVICE_HTTP,dwConnectFlags, dwConnectContext);LPCTSTR lpszVerb = L"GET";LPCTSTR lpszObjectName = L"";//L"/urchin.js";LPCTSTR lpszVersion = NULL; // 默认.LPCTSTR lpszReferrer = NULL; // 没有引用页LPCTSTR *lplpszAcceptTypes = NULL; // Accpet所有类型.DWORD dwOpenRequestFlags = INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP |INTERNET_FLAG_KEEP_CONNECTION |INTERNET_FLAG_NO_AUTH |INTERNET_FLAG_NO_COOKIES |INTERNET_FLAG_NO_UI | //设置启用HTTPSINTERNET_FLAG_SECURE |INTERNET_FLAG_RELOAD; DWORD dwOpenRequestContext = 0; //初始化Request HINTERNET hRequest = HttpOpenRequest( hConnect, lpszVerb, lpszObjectName, lpszVersion,lpszReferrer, lplpszAcceptTypes,dwOpenRequestFlags, dwOpenRequestContext);//发送Request BOOL bResult = HttpSendRequest(hRequest, NULL, 0, NULL, 0);//失败 if (!bResult) { fprintf(stderr, "HttpSendRequest failed, error = %d (0x%x)\n", GetLastError(), GetLastError()); //return 1; } //获得HTTP Response Header信息 DWORD dwInfoLevel = HTTP_QUERY_RAW_HEADERS_CRLF;DWORD dwInfoBufferLength = 2048; BYTE *pInfoBuffer = (BYTE *)malloc(dwInfoBufferLength+2);while (!HttpQueryInfo(hRequest, dwInfoLevel, pInfoBuffer, &dwInfoBufferLength, NULL)) { DWORD dwError = GetLastError(); if (dwError == ERROR_INSUFFICIENT_BUFFER) { free(pInfoBuffer); pInfoBuffer = (BYTE *)malloc(dwInfoBufferLength + 2); } else { fprintf(stderr, "HttpQueryInfo failed, error = %d (0x%x)\n", GetLastError(), GetLastError()); break; } }pInfoBuffer[dwInfoBufferLength] = '\0'; pInfoBuffer[dwInfoBufferLength + 1] = '\0'; printf("%S", pInfoBuffer); //很奇怪HttpQueryInfo保存的格式是wchar_t 和下面的InternetReadFile不一样 free(pInfoBuffer); //HTTP Response 的 Body, 需要的内容就在里面 DWORD dwBytesAvailable; while (InternetQueryDataAvailable(hRequest, &dwBytesAvailable, 0, 0)) { BYTE *pMessageBody = (BYTE *)malloc(dwBytesAvailable+1); DWORD dwBytesRead; BOOL bResult = InternetReadFile(hRequest, pMessageBody, dwBytesAvailable, &dwBytesRead); if (!bResult) { fprintf(stderr, "InternetReadFile failed, error = %d (0x%x)\n", GetLastError(), GetLastError()); break; } if (dwBytesRead == 0) break; // End of File. pMessageBody[dwBytesRead] = '\0'; printf("%s", pMessageBody); //InternetReadFile读出来的是普通的char. InternetReadFileEx 似乎是有宽字节版本的 free(pMessageBody);}
