Help!!!why the flag " jsp:forward" don't work?

Question

the code like this:
<%@page buffer="none" autoFlush="true" %> //attention: buffer="none"
<%
long i=0;
for(i=0;i<10;i++)
out.println("@@@@@@@@@@@@@@@@@");
%>
<jsp:forward page="test.jsp" />
but it not turn to the page "test.jsp".Why?

Answer 1

but it not turn to the page "test.jsp".Why? because of your page buffer being none.
According to the API:
forward should be called before the response has been committed to the client (before response body output has been flushed). If the response already has been committed, this method throws an IllegalStateException. Uncommitted output in the response buffer is automatically cleared before the forward.
Having a buffer of "none" means that any output you do is sent immediately, and is committed. So you can't forward/redirect after you start output.
Solution: give the page a buffer. Remove that page directive, and it should work.
Cheers,
evnafets