使用VS接收网页内容

首先得加上头文件   #include <afxinet.h>

这个头文件中有CInternetSession 这个类，就是用来接收与发送网页的类。

bool CDLG_MFC_framDlg::OnPcWebLogin(const CString &email, const CString &password) { CInternetSession session; CHttpFile *file = NULL; CString strURL = _T("http://www.163.com"); CString strHtml = _T(""); //存放网页数据 try { file = (CHttpFile*)session.OpenURL(strURL); } catch (CInternetException * m_pException) { file = NULL; m_pException->m_dwError; m_pException->Delete(); session.Close(); AfxMessageBox(_T("CInternetException")); return false; } CString strLine = _T(""); char urlData[1024] = "0"; if (file != NULL) { while (file->ReadString((LPTSTR)urlData, 1024) != NULL) //需要字符转换，否则就会乱码 { strHtml += strLine; } } else { MessageBox(_T("fail")); return false; } session.Close(); file->Close(); delete file; file = NULL; return true; } 2. CInternetSession的代理与超时使用

CInternetSession session; CHttpFile *file = NULL; INTERNET_PROXY_INFO proxyinfo; proxyinfo.dwAccessType = INTERNET_OPEN_TYPE_PROXY; proxyinfo.lpszProxy ="211.104.243.73:8080"; proxyinfo.lpszProxyBypass = NULL; session.SetOption(INTERNET_OPTION_PROXY,(LPVOID)&proxyinfo, sizeof(INTERNET_PROXY_INFO)); session.SetOption(INTERNET_OPTION_CONNECT_TIMEOUT, 5000); // 5秒的连接超时 session.SetOption(INTERNET_OPTION_SEND_TIMEOUT, 1000); // 1秒的发送超时 session.SetOption(INTERNET_OPTION_RECEIVE_TIMEOUT, 7000); // 7秒的接收超时 session.SetOption(INTERNET_OPTION_DATA_SEND_TIMEOUT, 1000); // 1秒的发送超时 session.SetOption(INTERNET_OPTION_DATA_RECEIVE_TIMEOUT, 7000); // 7秒的接收超时 session.SetOption(INTERNET_OPTION_CONNECT_RETRIES, 1); // 1次重试 try{ file = (CHttpFile*)session.OpenURL("http://www.163.com",1, INTERNET_FLAG_TRANSFER_ASCII|INTERNET_FLAG_RELOAD|INTERNET_FLAG_DONT_CACHE); }catch(CInternetException * m_pException){ file = NULL; m_pException->m_dwError; m_pException->Delete(); session.Close(); MessageBox("CInternetException"); } CString strLine; if(file != NULL){ while(file->ReadString(strLine) != NULL){ MessageBox(strLine); } }else{ MessageBox("fail"); } file->Close(); session.Close(); 3. CInternetSession的POST使用

CInternetSession m_InetSession(_T("session"), 0, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, INTERNET_FLAG_DONT_CACHE); //设置不缓冲 CHttpConnection* pServer = NULL; CHttpFile* pFile = NULL; CString strHtml = ""; CString strRequest = "name=123&pwd=321\r\n"; //POST过去的数据 CString strHeaders = "Accept: */*\r\nReferer: http://www.goodwaiter.com/\r\nAccept-Language: zh-cn\r\nContent-Type: application/x-www-form-urlencoded\r\nAccept-Encoding: gzip, deflate\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; try{ INTERNET_PORT nPort; //端口 nPort=80; pServer = m_InetSession.GetHttpConnection("www.goodwaiter.com", nPort); pFile = pServer->OpenRequest(CHttpConnection::HTTP_VERB_POST,"/"); pFile->AddRequestHeaders(strHeaders); pFile->SendRequestEx(strRequest.GetLength()); pFile->WriteString(strRequest); //重要-->m_Request 中有"name=aaa&name2=BBB&..." pFile->EndRequest(); DWORD dwRet; pFile->QueryInfoStatusCode(dwRet); if (dwRet == HTTP_STATUS_OK){ CString strLine; while ((nRead = pFile->ReadString(strLine))>0) { strHtml += strLine; } } delete pFile; delete pServer; } catch (CInternetException* e){ e->m_dwContext; }