如何在MFC中从HTTP服务器获取响应？

CInternetSession session;

CHttpConnection* pConnection = session.GetHttpConnection("服务器地址", INTERNET_FLAG_EXISTING_CONNECT, 端口号);

CHttpFile* pFile = pConnection->OpenRequest(CHttpConnection::HTTP_VERB_GET, "资源路径");

pFile->SendRequest();

DWORD dwStatusCode;
pFile->QueryInfoStatusCode(dwStatusCode);

CString strResponse;
CString strBuffer;
while (pFile->ReadString(strBuffer))
{
    strResponse += strBuffer;
}

pFile->Close();
pConnection->Close();
session.Close();