MVC model

MVC model

M ... Model

Java class Application processing (calculation processing, etc.), data storage

V ... View

JPS file Screen display

C ... Controller

Servlet class Request reception, processing execution request (Model), result display request (View)

Transfer process

forward

Move processing to another Servlet class or JPS class (internal) URL is the state at the time of request

Description

RequestDispatcher dispatcher = request.getRequestDispatcher("Forward destination");
dispatcher.forward(request, response);

redirect

Move processing to another Servlet class or JPS class (external) URL changed to redirect destination

Description

response.sendReddirect("Redirect URL");