JSP Spring prevents repeated login by users.

Source: Internet
Author: User

JSP Spring prevents repeated login by users.

Implementation of JSP Spring to prevent repeated login by users

Spring security prevents repeated User Logon

How does spring security prevent repeated login attempts? If the user account has been logged on, then perform the second or multiple logins, You need to prevent such multiple logins.

1. Configure listener in web. xml

<Listener> <listener-class> org. springframework. security. web. session. HttpSessionEventPublisher </listener-class> </listener>

2. Configure security. xml

<Session-management> <concurrency-control max-sessions = "1" error-if-maximum-exceeded = "true"/> </session-management>

Max-sessions indicates the maximum number of repeated logins allowed. If error-if-maximum-exceeded is not configured, the second login of the user account will invalidate the First Login. if this is configured, the second login will be blocked. The usual practice is to prevent the second login.

The above Implementation Method of JSP development to prevent repeated login by users. If you have any questions, you can go to the community on this site to discuss or leave a message, and make common progress! Thank you for reading this article. I hope it will help you. Thank you for your support for this site!

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.