Hi, Can u please suggest something on the following
Suppose we have a add new row form. Lets say the db table is primary keyed on the basis of a sequence number. On save the form is submitted to DB and suppose,it forwards this request to the some list screen. problem is if user refreshes the page then again the same row is again inserted. Since the primary key is sequence number so, there is no unique key violation. That is the reason i have prefered the use of send redirect although it is very inefficient. Thanks and Regards Raj EXT 6146 =============================================================================== ================= Request.sendRedirect sends an HTTP redirection message to the client, due to which the client agent initiates a new request to the server, asking for the redirected resource. This scenario therefore includes 2 network calls from the client to the server and is generally used when the redirection is done to a resource outside your web server. dispatcher.forward, on the other hand, redirects the output to a resource within the server, a process to which the client is unaware of.This scenario includes one call from the client to the server, which is obviously cheaper. Besides, performing a forward this way enables the forwarded page to access all the objects bound to the request scope that were created by the forwarding page... zm. -----Original Message----- From: A mailing list for discussion about Sun Microsystem's Java Servlet API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of Shankar Sent: Wednesday, February 27, 2002 6:51 AM To: [EMAIL PROTECTED] Subject: Re: difference between resuestdispatcher.forward and resposne.sendRedirect They are used in different contexts altogether Shankar ----- Original Message ----- From: "Sudarson Roy Pratihar" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, February 27, 2002 8:34 AM Subject: difference between resuestdispatcher.forward and resposne.sendRedirect Hi All, Can any anyone pls tell which one is better in performance - resuestdispatcher.forward or resposne.sendRedirect? Thanks and Regards, Sudarson ------------------------------------------------------------------- The contents of this e-mail are confidential to the ordinary user of the e-mail address to which it was addressed and may also be privileged. If you are not the addressee of this e-mail you should not copy, forward, disclose or otherwise use it or any part of it in any form whatsoever. If you have received this e-mail in error please notify us by telephone or e-mail the sender by replying to this message, and then delete this e-mail and other copies of it from your computer system. Thank you. We reserve the right to monitor all e-mail communications through our network. ___________________________________________________________________________ To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff SERVLET-INTEREST". Archives: http://archives.java.sun.com/archives/servlet-interest.html Resources: http://java.sun.com/products/servlet/external-resources.html LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
