Export and Import webparts programmatically

Recently I was given a assignment to import webparts to the existing sharepoint sites. I had searched some code in Google and found some links.

The following are the useful links for the export, import and connect webparts.

http://sharepoint.infoyen.com/2012/03/13/export-and-import-webparts-programmatically/
http://sharepoint.infoyen.com/2012/03/13/connect-webparts-programmatically-using-spconnectwebparts/