session-scope

问题 I googled a lot for this problem before posting this question and Accessing HttpSession from HttpServletRequest in a Web Socket @ServerEndpoint is one of the best Questions/Answers I was able to found, but it appears to not solve my problem. I was able to access HttpSession from websocket in this way, but I can't access the same CDI session bean instances as from normal HTTP requests. I tried to store in session the HttpSessionContextImpl Weld instance too and tried to use it on WebSocket

问题 I googled a lot for this problem before posting this question and Accessing HttpSession from HttpServletRequest in a Web Socket @ServerEndpoint is one of the best Questions/Answers I was able to found, but it appears to not solve my problem. I was able to access HttpSession from websocket in this way, but I can't access the same CDI session bean instances as from normal HTTP requests. I tried to store in session the HttpSessionContextImpl Weld instance too and tried to use it on WebSocket

问题 I know that Application-Scope persists across multiple users, so it's obvious that we should make sure that all the ApplicationScoped ManagedBeans are thread safe. I also understand that we don't need to care about thread safety for a RequestScoped ManagedBean. That's because it last only for one HTTP request, and is newly instantiated for each request if it's referenced. But I am not quite sure why we should worry about thread safety for a SessionScoped ManangedBean. Even though it persists

问题 I have configured JSF 2.1 in my Google App Engine application following the indications at: https://sites.google.com/a/wildstartech.com/adventures-in-java/Java-Platform-Enterprise-Edition/JavaServer-Faces/javaserver-faces-21/configuring-javaserver-faces-21-to-run-on-the-google-app-engine-using-eclipse The application works perfectly when running locally, but the session is lost when deployed at Google App Engine, e.g.: the component values are lost when updating any other component in the

问题 Ok, building off of the last question I asked, How does Mysql handle the where statment in the following code: DELIMITER ;// DROP PROCEDURE IF EXISTS `test`;// CREATE PROCEDURE `test` ( id INT ) BEGIN SELECT * FROM some_table WHERE id = id; END;// What does MySQL do in this case? Does it treat the where clause as some_table.id = id or does it treat it like some_table.id = some_table.id Right now I am doing something like WHERE id = @id because I didn't know that there were session variables

问题 I am trying to implement a long polling mechanism for auto-updating a grid in a project that uses Spring MVC. I am sending an Ajax request from the client and on the server side I enter a while loop until data is found then the data is send back as a response. I need to have another mechanism that stops this operation (that breaks off the loop) when the user changes tab in the application (every tab has a different grid that is auto-updating through long polling. Every tab is handled server

问题 Is it possible in JSF 2 to initialize a session-scoped managed bean as soon as the session context is loaded? I know it's possible with Application Scoped beans and the eager attribute in the @ManagedBean annotation, but does something similar exist for session beans? I have a session-scoped bean that I want to have loaded regardless of if a specific page is visited. 回答1: Are you sure you need a bean? If it is some general initialization stuff, you can use a HttpSessionListener , and on

问题 I have been using the following bit of code in a servlet to locate a session backing bean (as suggested by BalusC) without problems until recently. Now it only works on Internet Explorer. Chrome and Firefox appear to be getting a totally new backing bean rather than the original backing bean. When calling functions in the backing bean, it falls over with null pointer errors for objects in the backing bean that were definitely initialized in the original. FacesContext facesContext = FacesUtil

问题 I am working on a jsf app using primefaces and have a SalesBean which is used by various views @ManagedBean @ViewScoped public class SalesBean implements Serializable, IGlobals { private static final long serialVersionUID = 2384518099615211725L; @ManagedProperty(value = "#{applicationBean}") private ApplicationBean application; @ManagedProperty(value = "#{sessionSettingsBean}") private SessionSettingsBean settings; @PostConstruct public void refresh() { this.trader=settings.getSelectedTrader(

问题 I'm having troubles in setting an Authorization Listener (that implements PhaseListener) to manage authentication and autorization. More specifically, I set a session scoped bean called SessionBean: @ManagedBean @SessionScoped public class SessionBean{ private String loggedUser; public SessionBean(){ logger.info("Sono nel costruttore di SessionBean()"); } public String login(){ .... } ... } And in my sun-web.xml: <managed-bean> <managed-bean-name>SessionBean</managed-bean-name> <managed-bean