现在位置：
首页 >
C/C++ > 用CInternetSession下载文件
用CInternetSession下载文件
bool InternetDownload(const CString &strURL, const CString &strFN)
...{
CInternetSession internetSession("SecurityScan.exe",0);
//第一个参数不能为空
BOOL bSucceed = TRUE;
try
...{
CStdioFile * pFile = internetSession.OpenURL(strURL);
if(pFile != NULL)
...{
CFile cf;
if(!cf.Open(strFN, CFile::modeCreate | CFile::modeWrite, NULL))
...{
return FALSE;
}
BYTE Buffer[512];
ZeroMemory(Buffer, sizeof(Buffer));
int nReadLen = 0;
while((nReadLen = pFile->Read(Buffer, sizeof(Buffer))) > 0)
...{
cf.Write(Buffer, nReadLen);
}
cf.Close();
pFile->Close() ;
delete pFile;
}
}
catch (CInternetException& e)
...{
char szBuffer[128];
ZeroMemory(szBuffer, sizeof(szBuffer));
e.GetErrorMessage(szBuffer, sizeof(szBuffer), NULL);
TRACE("InternetDownload, Exception: %s ",szBuffer);
}
catch(...)
...{
TRACE("InternetDownload, Exception: ... ");
}
internetSession.Close() ;
if(!bSucceed)
DeleteFile(strFN);
return bSucceed;
}
