In your situation, you probably don't want to mess around with the HttpSession object. The session object is designed for sharing info within the same session, not the same user. If sharing info among multiple sessions is desired, use ServletContext instead. One solution would be store your user-specific application data as an attribute and store it in the servlet context, with the user id as the key. You may need to use a hashtable or your own data structure as the context attribute if dealing with multiple/complex data types. This solution will also allow user data to be accessible even after one of the user sessions is terminated.
ND -----Original Message----- From: Daniel Guggi [mailto:[EMAIL PROTECTED] Sent: Thursday, February 16, 2006 8:22 AM To: users@tomcat.apache.org Subject: Multiple Sessions per user Hi! I ran into a session-issue with a webapp. There are situations when it would be nice for a user (same browser/same machine/same webapp) to have the possibility to login twice and thus have two different JSESSIONIDs. There is also a problem if the user opens a second browser-window or -tab, because the user may change session-data in the one window and thus will have invalid (outdated) data in the other window afterwards. Example: The user is logged and requests a jsp page that has the following session-bean: <jsp:useBean id="someBean" scope="session" class="someClass" /> The user also opens the jsp page in another browser-window (or -tab). Now he starts editing the data (provided in the form) in one of those windows and then submits it to the server. The server verifies and stores the data in db. As a result the session-variable "someBean" gets reloaded/updated. If the user now tries to update the data in the other window, there will be a problem, because the session-data "someBean" has already been updated and the user is going to send outdated information to the server. What are the possible solutions to this issue(s)? Maybe the RSEF (the rudimental servlet extension framework) (http://java.sun.com/developer/technicalArticles/Servlets/ServletControl /) would help me with creating multiple sessions for the same users? And how would someone solve the problem with multiple browser-windows or -tabs? TIA, Daniel --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
