1. CInternetSession的简单使用
- CInternetSession session;
- CHttpFile *file = NULL;
- CString strURL = " http://www.google.com";
- CString strHtml = "”;
-
- try{
- file = (CHttpFile*)session.OpenURL(strURL);
- }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){
- strHtml += strLine;
- }
- }else{
- MessageBox("fail");
- }
- session.Close();
- file->Close();
- delete file;
- file = NULL;
CInternetSession session;
CHttpFile *file = NULL;
CString strURL = " http://www.google.com";
CString strHtml = "”; //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();
MessageBox("CInternetException");
}
CString strLine;
if(file != NULL){
while(file->ReadString(strLine) != NULL){
strHtml += strLine;
}
}else{
MessageBox("fail");
}
session.Close();
file->Close();
delete file;
file = NULL;
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);
- session.SetOption(INTERNET_OPTION_SEND_TIMEOUT, 1000);
- session.SetOption(INTERNET_OPTION_RECEIVE_TIMEOUT, 7000);
- session.SetOption(INTERNET_OPTION_DATA_SEND_TIMEOUT, 1000);
- session.SetOption(INTERNET_OPTION_DATA_RECEIVE_TIMEOUT, 7000);
- session.SetOption(INTERNET_OPTION_CONNECT_RETRIES, 1);
-
- 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();
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);
- CHttpConnection* pServer = NULL;
- CHttpFile* pFile = NULL;
- CString strHtml = "";
- CString strRequest = "name=123&pwd=321\r\n";
- CString strHeaders = "Accept: */*\r\nReferer: http://www./\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;
- nPort=80;
- pServer = m_InetSession.GetHttpConnection("www.", nPort);
- pFile = pServer->OpenRequest(CHttpConnection::HTTP_VERB_POST,"/");
- pFile->AddRequestHeaders(strHeaders);
- pFile->SendRequestEx(strRequest.GetLength());
- pFile->WriteString(strRequest);
- 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;
- }
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