1
我正在C++上編寫程序，使用WinHTTP向Java Servlet發出調用（POST請求）。當我通過HTTP請求POST時，一切正常，當我通過HTTPS請求時會發生問題。它發送空請求到服務器，但切斷請求主體（但它有內容）如何在C++上使用WinHTTP進行HTTPS調用（POST請求）？
int sendPostRequest(char *pszPostData, LPCTSTR servletUrl, char* resultBuffer, ofstream &outputFile) {
outputFile << "====================================== SENDING REEQUEST ======================================" << endl;
HINTERNET hSession = WinHttpOpen(
userAgent,
WINHTTP_ACCESS_TYPE_NO_PROXY,
WINHTTP_NO_PROXY_NAME,
WINHTTP_NO_PROXY_BYPASS,
0);
if (!hSession)
{
_tprintf(_TEXT("Failed to open WinHTTP session: %ld\n"), GetLastError());
outputFile << "Failed to open WinHTTP session: %ld\n" << GetLastError() << endl;
return NULL;
}
else {
_tprintf(_TEXT("Oppening WinHTTP session successful: %ld\n"), GetLastError());
outputFile << "Oppening WinHTTP session successful: %ld\n" << GetLastError() << endl;
}
HINTERNET hConnect = WinHttpConnect(
hSession,
serverIP,
serverPort,
0);
if (!hConnect)
{
_tprintf(_TEXT("Failed to connect to server: %ld\n"), GetLastError());
outputFile << "Failed to connect to server: %ld\n" << GetLastError() << endl;
WinHttpCloseHandle(hSession);
return NULL;
}
else {
_tprintf(_TEXT("Connection to server successful: %ld\n"), GetLastError());
outputFile << "Connection to server successful: %ld\n" << GetLastError() << endl;
}
_tprintf(_TEXT("Post data : %ld\n"), pszPostData);
outputFile << "Post data : %ld\n" << pszPostData << endl;
DWORD dwDataLen = strlen(pszPostData);
HINTERNET hRequest = WinHttpOpenRequest(
hConnect,
_TEXT("POST"),
servletUrl,
NULL,
WINHTTP_NO_REFERER,
WINHTTP_DEFAULT_ACCEPT_TYPES,
WINHTTP_FLAG_REFRESH);
if (!hRequest)
{
_tprintf(_TEXT("Failed to open request: %ld\n"), GetLastError());
outputFile << "Failed to open request: %ld\n" << GetLastError() << endl;
WinHttpCloseHandle(hConnect);
WinHttpCloseHandle(hSession);
return -1;
}
else {
_tprintf(_TEXT("Opening request successful: %ld\n"), GetLastError());
outputFile << "Opening request successful: %ld\n" << GetLastError() << endl;
}
DWORD dwReqOpts = 0;
DWORD dwSize = sizeof(DWORD);
WinHttpSetOption(
hRequest,
WINHTTP_OPTION_SECURITY_FLAGS,
&dwReqOpts,
sizeof(DWORD));
BOOL done = false;
BOOL rc = WinHttpSendRequest(
hRequest,
contentTypeHeader,
-1,
(LPVOID)pszPostData,
dwDataLen,
dwDataLen,
NULL);
if (rc) {
rc = WinHttpReceiveResponse(hRequest, NULL);
_tprintf(_TEXT("Sending request successful: %ld\n"), GetLastError());
outputFile << "Sending request successful: %ld\n" << GetLastError() << endl;
}
else
{
_tprintf(_TEXT("Send request failed: %ld\n"), GetLastError());
outputFile << "Send request failed: %ld\n" << GetLastError() << endl;
WinHttpCloseHandle(hRequest);
WinHttpCloseHandle(hConnect);
WinHttpCloseHandle(hSession);
return -1;
}
// Get the status from the server
DWORD dwCode = 0;
if (rc)
{
rc = WinHttpQueryHeaders(
hRequest,
WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER,
NULL,
&dwCode,
&dwSize,
NULL);
}
if (dwCode != HTTP_STATUS_OK)
{
_tprintf(_TEXT("HTTP Request failed: %ld\n"), dwCode);
outputFile << "HTTP Request failed: %ld\n" << dwCode << endl;
WinHttpCloseHandle(hRequest);
WinHttpCloseHandle(hConnect);
WinHttpCloseHandle(hSession);
}
else
{
_tprintf(_TEXT("HTTP Request is ok: %ld\n"), dwCode);
outputFile << "HTTP Request is ok : %ld\n" << dwCode << endl;
// Keep reading from the remote server until there's nothing left to read
DWORD dwBytesToBeRead = 0, dwBytesRead = 0;
//char szBuffer[8192] = { 0 };
//strcpy(resultBuffer, "");
do
{
if (!WinHttpQueryDataAvailable(hRequest, &dwBytesToBeRead))
{
_tprintf(_TEXT("No data available from server? %ld"), GetLastError());
outputFile << "No data available from server? %ld" << GetLastError() << endl;
WinHttpCloseHandle(hRequest);
WinHttpCloseHandle(hConnect);
WinHttpCloseHandle(hSession);
return -1;
}
if (!WinHttpReadData(
hRequest,
//szBuffer,
resultBuffer,
//sizeof(szBuffer),
RESULT_BUFFER_SIZE,
&dwBytesRead))
{
_tprintf(_TEXT("Failed to read data from server: %ld"), GetLastError());
outputFile << "Failed to read data from server: %ld" << GetLastError() << endl;
WinHttpCloseHandle(hRequest);
WinHttpCloseHandle(hConnect);
WinHttpCloseHandle(hSession);
return -1;
}
if (dwBytesRead > 0)
{
//szBuffer[dwBytesRead] = 0;
resultBuffer[dwBytesRead] = 0; // NULL-terminated returned buffer
}
} while (dwBytesRead > 0);
WinHttpCloseHandle(hRequest);
WinHttpCloseHandle(hConnect);
WinHttpCloseHandle(hSession);
return 0;
}
return -1;
}
凡pszPostData - 網址的Servlet（終點），resultBuffer - - 請求體，servletUrl的內容調用結果將被寫入這個緩衝區，outputFile - 日誌文件。
那麼如何在不削減請求正文的情況下創建HTTPS調用？
既然你有Java標記，爲什麼不直接用Java編寫控制檯程序呢？ – developerwjk 2014-09-02 20:57:31
@developerwjk，它是用C++編寫的 – 2014-09-03 04:18:16