There are ways to jump page: redirects and forwards the request
- request.setAttribute () put data
- the request.getAttribute () to take data
If there is no request data field, using redirection Jump: Response.sendRedirect ();
If there is data request domain, use request forwarding Jump:
先 request.setAttribute() ；
Then request.getRequestDispatchar ( "destination page") .forward (request, response) ;
Compare the following two ways:
