Download and save related pages
Author: Xu Jing Zhou
Download related sample source code (http://www.9cbs.net/cnshare/soft/11/11834.shtm)
Basic composition: Use the Wininet class, directly open the session, read and save the web to related files.
The achievement is as follows:
Bool getSourceHtml (CString theurl, cstring filename)
{
CinternetSession session;
CinternetFile * file = NULL;
Try
{
// Try to connect to the specified URL
File = (CinternetFile *) session.openurl (theurl);
}
Catch (CinternetException * m_pexception)
{
// If there is a mistake, set the file empty
File = NULL;
M_PEXCEPTION-> delete ();
Return False;
}
// Use Datastore to save the read web file
Cstdiofile DataStore;
IF (file)
{
CString Somecode; // can also use the lPTSTR type, will not delete / N Enter in the text
Bool Bisok = DataStore.Open (StrPath "//" FileName,
Cfile :: MODECREATE
| Cfile :: ModeWrite
| CFILE :: Sharedenywrite
| Cfile :: typetext);
IF (! bisok)
Return False;
// Read and write the web file until it is empty
While (file-> readstring (somecode)! = null) // If the LPTSTR type is used, read the maximum number nmax set 0, end the empty character
{
Datastore.writestring (someCode);
DataStore.WritString ("/ n"); // If somecode uses the lPTSTR type, you don't need this sentence.
}
File-> close ();
DELETE FILE;
}
Else
{
DataStore.WritString (_t ("to the Connection to the Specified Server"))));
Return False;
}
Return True;
}
Let's take a look at how to use it:
1. Join the Winint class, as follows:
#include "afxinet.h" // Add to download the header to use
2, add the following download to your project, you can use the following code (where the first parameter is the URL, the second parameter is the file name saved after the download):
/ / Get the path where the main program is located, there is a global variable StrPath
GetModuleFileName (null, strpath.getbuffersetlength (max_path 1), max_path);
StrPath.releaseBuffer ();
Int npos;
Npos = strpath.reversefind ('//');
StrPath = strpath.Left (npos);
Bool m_bdownloadfailed; m_bdownloadfailed = getSourceHtml ("http://www.vckbase.com", "news.txt"); // Download the default URL for the prompts in which the method is implemented, see the sample source code after downloading.
Contact information:
Email: jingzhou_xu@163.com
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