Answer Posted / aru
forward is server side redirect and sendRedirect is client
side redirect. When you invoke a forward request, the
request is sent to another resource on the server, without
the client being informed that a different resource is going
to process the request. This process occurs completely with
in the web container And then returns to the calling method.
When a sendRedirect method is invoked, it causes the web
container to return to the browser indicating that a new URL
should be requested. Because the browser issues a completely
new request any object that are stored as request attributes
before the redirect occurs will be lost. This extra round
trip a redirect is slower than forward. Client can disable
sendRedirect.
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