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VC 读取服务器上的文件(HTTP方式)

2012-12-30 23:51 381 查看

CString GetStringFromUrl(LPCTSTR pszUrl)
{
   CString str ;
   HINTERNET hSession = ::InternetOpen( _T("4399GameBox") , INTERNET_OPEN_TYPE_PRECONFIG ,
       NULL , NULL , 0 ) ;
   if( hSession )
   {
       HINTERNET hHttpFile = ::InternetOpenUrl( hSession , pszUrl , NULL , 0 , 0 , 0 ) ;
       if( hHttpFile )
       {
           // 获得文件的大小
           TCHAR szSizeBuffer [ MAX_PATH ] ;
           DWORD dwLengthSizeBuffer = sizeof(szSizeBuffer);
           if( ::HttpQueryInfo( hHttpFile , HTTP_QUERY_CONTENT_LENGTH , szSizeBuffer ,
               &dwLengthSizeBuffer , NULL ) )
           {
               DWORD dwFileSize = _ttol( szSizeBuffer ) ;
               DWORD dwBytesRead = 0 ;
               CMemBlock mem( dwFileSize + 1 , TRUE ) ;

               if( ::InternetReadFile( hHttpFile , mem.GetData() , dwFileSize , &dwBytesRead ) )
               {
                   str = (LPCSTR)mem.GetData() ;
               }
           }

           ::InternetCloseHandle( hHttpFile ) ;
       }

       ::InternetCloseHandle( hSession ) ;
   }

   return str ;
} CString GetStringFromUrl(LPCTSTR pszUrl)
{
   CString str ;
   HINTERNET hSession = ::InternetOpen( _T("4399GameBox") , INTERNET_OPEN_TYPE_PRECONFIG ,
       NULL , NULL , 0 ) ;
   if( hSession )
   {
       HINTERNET hHttpFile = ::InternetOpenUrl( hSession , pszUrl , NULL , 0 , 0 , 0 ) ;
       if( hHttpFile )
       {
           // 获得文件的大小
           TCHAR szSizeBuffer [ MAX_PATH ] ;
           DWORD dwLengthSizeBuffer = sizeof(szSizeBuffer);
           if( ::HttpQueryInfo( hHttpFile , HTTP_QUERY_CONTENT_LENGTH , szSizeBuffer ,
               &dwLengthSizeBuffer , NULL ) )
           {
               DWORD dwFileSize = _ttol( szSizeBuffer ) ;
               DWORD dwBytesRead = 0 ;
               CMemBlock mem( dwFileSize + 1 , TRUE ) ;

               if( ::InternetReadFile( hHttpFile , mem.GetData() , dwFileSize , &dwBytesRead ) )
               {
                   str = (LPCSTR)mem.GetData() ;
               }
           }

           ::InternetCloseHandle( hHttpFile ) ;
       }

       ::InternetCloseHandle( hSession ) ;
   }

   return str ;
}

CString GetStringFromUrl(LPCTSTR pszUrl)
{
   CString str ;
   HINTERNET hSession = ::InternetOpen( _T("4399GameBox") , INTERNET_OPEN_TYPE_PRECONFIG ,
       NULL , NULL , 0 ) ;
   if( hSession )
   {
       HINTERNET hHttpFile = ::InternetOpenUrl( hSession , pszUrl , NULL , 0 , 0 , 0 ) ;
       if( hHttpFile )
       {
           // 获得文件的大小
           TCHAR szSizeBuffer [ MAX_PATH ] ;
           DWORD dwLengthSizeBuffer = sizeof(szSizeBuffer);
           if( ::HttpQueryInfo( hHttpFile , HTTP_QUERY_CONTENT_LENGTH , szSizeBuffer ,
               &dwLengthSizeBuffer , NULL ) )
           {
               DWORD dwFileSize = _ttol( szSizeBuffer ) ;
               DWORD dwBytesRead = 0 ;
               CMemBlock mem( dwFileSize + 1 , TRUE ) ;

               if( ::InternetReadFile( hHttpFile , mem.GetData() , dwFileSize , &dwBytesRead ) )
               {
                   str = (LPCSTR)mem.GetData() ;
               }
           }

           ::InternetCloseHandle( hHttpFile ) ;
       }

       ::InternetCloseHandle( hSession ) ;
   }

   return str ;
}
CString GetStringFromUrl(LPCTSTR pszUrl)
{
   CString str ;
   HINTERNET hSession = ::InternetOpen( _T("4399GameBox") , INTERNET_OPEN_TYPE_PRECONFIG ,
       NULL , NULL , 0 ) ;
   if( hSession )
   {
       HINTERNET hHttpFile = ::InternetOpenUrl( hSession , pszUrl , NULL , 0 , 0 , 0 ) ;
       if( hHttpFile )
       {
           // 获得文件的大小
           TCHAR szSizeBuffer [ MAX_PATH ] ;
           DWORD dwLengthSizeBuffer = sizeof(szSizeBuffer);
           if( ::HttpQueryInfo( hHttpFile , HTTP_QUERY_CONTENT_LENGTH , szSizeBuffer ,
               &dwLengthSizeBuffer , NULL ) )
           {
               DWORD dwFileSize = _ttol( szSizeBuffer ) ;
               DWORD dwBytesRead = 0 ;
               CMemBlock mem( dwFileSize + 1 , TRUE ) ;

               if( ::InternetReadFile( hHttpFile , mem.GetData() , dwFileSize , &dwBytesRead ) )
               {
                   str = (LPCSTR)mem.GetData() ;
               }
           }

           ::InternetCloseHandle( hHttpFile ) ;
       }

       ::InternetCloseHandle( hSession ) ;
   }

   return str ;
} CString GetStringFromUrl(LPCTSTR pszUrl)
{
   CString str ;
   HINTERNET hSession = ::InternetOpen( _T("4399GameBox") , INTERNET_OPEN_TYPE_PRECONFIG ,
       NULL , NULL , 0 ) ;
   if( hSession )
   {
       HINTERNET hHttpFile = ::InternetOpenUrl( hSession , pszUrl , NULL , 0 , 0 , 0 ) ;
       if( hHttpFile )
       {
           // 获得文件的大小
           TCHAR szSizeBuffer [ MAX_PATH ] ;
           DWORD dwLengthSizeBuffer = sizeof(szSizeBuffer);
           if( ::HttpQueryInfo( hHttpFile , HTTP_QUERY_CONTENT_LENGTH , szSizeBuffer ,
               &dwLengthSizeBuffer , NULL ) )
           {
               DWORD dwFileSize = _ttol( szSizeBuffer ) ;
               DWORD dwBytesRead = 0 ;
               CMemBlock mem( dwFileSize + 1 , TRUE ) ;

               if( ::InternetReadFile( hHttpFile , mem.GetData() , dwFileSize , &dwBytesRead ) )
               {
                   str = (LPCSTR)mem.GetData() ;
               }
           }

           ::InternetCloseHandle( hHttpFile ) ;
       }

       ::InternetCloseHandle( hSession ) ;
   }

   return str ;
}
CString GetStringFromUrl(LPCTSTR pszUrl)
{
   CString str ;
   HINTERNET hSession = ::InternetOpen( _T("4399GameBox") , INTERNET_OPEN_TYPE_PRECONFIG ,
       NULL , NULL , 0 ) ;
   if( hSession )
   {
       HINTERNET hHttpFile = ::InternetOpenUrl( hSession , pszUrl , NULL , 0 , 0 , 0 ) ;
       if( hHttpFile )
       {
           // 获得文件的大小
           TCHAR szSizeBuffer [ MAX_PATH ] ;
           DWORD dwLengthSizeBuffer = sizeof(szSizeBuffer);
           if( ::HttpQueryInfo( hHttpFile , HTTP_QUERY_CONTENT_LENGTH , szSizeBuffer ,
               &dwLengthSizeBuffer , NULL ) )
           {
               DWORD dwFileSize = _ttol( szSizeBuffer ) ;
               DWORD dwBytesRead = 0 ;
               CMemBlock mem( dwFileSize + 1 , TRUE ) ;

               if( ::InternetReadFile( hHttpFile , mem.GetData() , dwFileSize , &dwBytesRead ) )
               {
                   str = (LPCSTR)mem.GetData() ;
               }
           }

           ::InternetCloseHandle( hHttpFile ) ;
       }

       ::InternetCloseHandle( hSession ) ;
   }

   return str ;
}

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