-----> How can I make one report file using JSP so I can send to other user and he/she can refer it??

-----> And How can I redirect one page to other page with some delay such one page can display 5sec and thn redirect automatically redirect to other page. for example, happned in daniweb after logging.

Try this

RequestDispatcher dispatcher = req.getRequestDispatcher("./Somehwhere/history.jsp");
            if(dispatcher!=null){
                //redirect to history page
                dispatcher.forward(req, resp);
            }
            else{
                //redirect to error page
                out.print("Sorry, redirection failed");
            }
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