httpsession

问题 This question already has answers here : Best option for Session management in Java (6 answers) Closed 3 years ago . In a web app, when user logs in, a HttpSession is created using HttpSession s = request.getSession(true); This creates a cookie with jsessionid on the browser. But if cookies are disabled on browser, How can i proceed with login? 回答1: If Cookies are disabled. You should be using URL Rewriting mechanism for Session tracking. Code Example: http://www.javadocexamples.com/javax

问题 I am using Spring 4.0.2 for my Web Application. My Web Application is about file processing. There are some statues about files like "In Progress", "On Hold", "Completed" . One user can complete multiple files, but only one at a time. So at a time only one file must be "In Progress" for a single user. Now, I want to check after every 15 mins whether is there any event occurred with particular file or not. If there is no event occurred, I want to change file status from "In Progress" to "On

问题 I was trying to do a "simple" application about a survey. Where you have some options (checkboxes) and then the results (votes) are shown in other page. I have this class where I can keep the results all time (I want to update this class, using HttpSession). I was using the class HashMap, but I changed, I think it doesn't matter: package beans; import java.util.ArrayList; import java.util.List; public class SurveyBean { private List<String> keys; private List<String> values; public SurveyBean

问题 I'm using a load balancer with Tomcat7 and right now our HttpSession object always returns a new session. My guess is that the information that binds the browser to the server isn't being sent to the server. Is the session mapped by a token set in a cookie client-side? If so, is this sent in the HTTP header with each request? And if so, what does it look like? 回答1: Every time you connect to the server initially a jsessionid is generated and saved to a cookie on the client side. That

问题 How do application servers keep track of which client is associated with which HttpSession object? Is it related to keeping track of the TCP/IP connection between the client? Or cookies perhaps? I doubt it's cookies since there is a separate method for extracting cookies. Background I understand that servlets and JSPs can call request.getSession() to obtain an HttpSession object associated with a client. I'm curious as to how the server knows to return that same object when the client

问题 I'm currently in a need of getting session ID thus I need to get the HttpSession but I don't have any servlets in my EJB module. So perhaps some DI annotation like in webservices api? 回答1: The EJB technology doesn't rely on HTTP so there is absolutely no reason to have HTTP specific stuff in the EJB API. If you need the session id from an EJB (wondering why), pass it as parameter from the web tier (technically, you could even pass the reference to the HttpRequest or the HttpSession objects

问题 I have been working with Struts 2 for a long time. In case of implementing SessionAware interface to our action class we will get SessionMap but not HttpSession object. In case of ServletRequestAware and ServletResposeAware we get HttpServletRequest and HttpServletResponse object but not wrapper objects like SessionMap in case of SessionAware . My question is, if Struts is giving us SessionMap instead of HttpSession to decouple our action classes from Servlet API and Http protocol,then why it

问题 I'm having a bit of trouble with Session timeouts in my Tomcat served web application. From reading over Tomcat's documentation, sessions expire after a time which can be configured in the web.xml file. <session-config> <session-timeout>30</session-timeout> </session-config> Quesion) Does this mean 30 minutes from when the session was created for the user? Or 30 minutes from when the session was last accessed? If it is, as I originally thought, 30 minutes from when the session was last

问题 I'm developing a vaadin 7 application with user authentication and authorization using jaas with a realm defined in the application server (glassfish). I have this requirements: A user can stay logged in for some time, so that he doesn't need to enter his password every time. I do this by setting the session timeout of the http session. The vaadin session can lock some resources and while locked, no other session can use this resource. All locked resources are released when the vaadin session

问题 Can someone give me insight of how do I implement session management in Dropwizard 0.8.x or above. I was using Dropwizard 0.7.0 till now and working perfectly in it. But I really confused by change docs provided when I migrated to 0.8.x. In Dropwizard 0.7.0 (which I was using previously) it was done like the following /*MainApplication.class session handler */ environment.jersey().register(HttpSessionProvider.class); environment.servlets().setSessionHandler(new SessionHandler()); /*Resource