Jsp redirect

Jsp redirect has two method.
First is <jsp:forward page=" ">.
Second is<% response.redirect(); %>

<jsp:forward page="target.jsp">

construction:

forward.jsp:

target.jsp:

run forward.jsp and get the result:

conclusion of <jsp:forward>:
After redirecting, the URL is still request.jsp. It never change.
This happens on the server. It can take parameters.

<% response.redirect("target.jsp") %>

result:

concluction:
I run target.jsp, but the url changes into target.jsp.
It can hardly take parameters.