if the brower close the vaddin UI page,the server-side how to listen the cl

Flow
1

Do the listener exist which listen the browser close event that can instantly know the UI has closed and then release the resource?

2

DetachListener should be work in your case;
https://vaadin.com/docs/v10/flow/advanced/tutorial-application-lifecycle.html

3

Gabriel Pedro:
DetachListener should be work in your case;
https://vaadin.com/docs/v10/flow/advanced/tutorial-application-lifecycle.html

thanks,but when I use this method in the UI init(),for instance this.addDetachListener()，what I expected is when I close the UI page and wait 3 heartbeats then detach() can instantly be called ,but actually I found the method was not called util I open an new UI page again.How to called the method immidiately just the 3 heartbeats gone?

4

guo zhichen:

Gabriel Pedro:
DetachListener should be work in your case;
https://vaadin.com/docs/v10/flow/advanced/tutorial-application-lifecycle.html

thanks,but when I use this method in the UI init(),for instance this.addDetachListener()，what I expected is when I close the UI page and wait 3 heartbeats then detach() can instantly be called ,but actually I found the method was not called util I open an new UI page again.How to called the method immidiately just the 3 heartbeats gone?

Following the documentation, it simply implements SessionDestroyListener on VaadinServlet.

Read the topics:

  • Session Expiration
  • Handling Session Initialization and Destruction

https://vaadin.com/docs/v10/flow/advanced/tutorial-application-lifecycle.html

5

Gabriel Pedro:

guo zhichen:

Gabriel Pedro:
DetachListener should be work in your case;
https://vaadin.com/docs/v10/flow/advanced/tutorial-application-lifecycle.html

thanks,but when I use this method in the UI init(),for instance this.addDetachListener()，what I expected is when I close the UI page and wait 3 heartbeats then detach() can instantly be called ,but actually I found the method was not called util I open an new UI page again.How to called the method immidiately just the 3 heartbeats gone?

Following the documentation, it simply implements SessionDestroyListener on VaadinServlet.

Read the topics:

  • Session Expiration
  • Handling Session Initialization and Destruction

https://vaadin.com/docs/v10/flow/advanced/tutorial-application-lifecycle.html

thanks ,actually I’m using the vaadin 8 intergrated with spring ,so I using the @SpirngUI(“/”) instead of vaadinServlet ,so I’m not sure where can I add SessionDestroyListener . Besides, I feel greateful for you help.

6

Extending SpringVaadinServletannotated with@Component(“vaadinServlet”)` should be work.

Reference: https://stackoverflow.com/a/33035981

please do not be inconvenient by creating several topics.

7

I have delete it.thanks for you patient help.

8

I’ve try it ,but it doesn’t work ,may be I can find another way to solve it.