How can I handle cookies?

Posted on 2003-11-20
Last Modified: 2010-04-01
Hi all,

I want to save the member login information in Cookies. After user login, the information will be auto-add to client side PC, and show it in FORM next time. Once I put the GETCOOKIES statement, it generated error when enter the site said that: java.lang.NullPointerException.

But, when the user logined before, this error will not be show. I know that it is the error about the Cookie, but, how can I know the cookies has data or not before get it?

here is my code:

String cookiemail="";
Cookie cookies[]=request.getCookies();

for (int i=0;i<cookies.length;i++){

please help. Thanks!
Question by:efkw
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment

Accepted Solution

DidierD earned 65 total points
ID: 9795410
Try this

String cookiemail="";
Cookie cookies[]=request.getCookies();

if (cookies != null){
  for (int i=0;i<cookies.length;i++){

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
getting Http 404 error in jsp forms 8 85
spring example errors 33 504
How can I   ajax html table  rows? 20 80
collection output issue 9 65
While it may be true that the internet is a place of possibilities, it is also a hostile environment lurking with many dangers. By clicking on the wrong link, trusting the wrong person or using a weak password, you are virtually inviting hackers to …
Original post  on Monitis Blog. Web performance monitoring is broken into two camps: passive and active. Passive monitoring is defined as looking at real-world historical performance by monitoring actual log-ins, site hits, clicks, requests for…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below.…

733 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question